Merge tag 'efi-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi into efi/urgent

Pull a single EFI fix for v5.3 from Ard:

  - Fix mixed mode breakage in EFI config table handling for TPM.

178 files changed, 3159 insertions, 1394 deletions

diff --git a/drivers/input/apm-power.c b/drivers/input/apm-power.c
index 650177a3c858..70a9e1dfba33 100644
--- a/drivers/input/apm-power.c
+++ b/drivers/input/apm-power.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  Input Power Event -> APM Bridge
  *
  *  Copyright (c) 2007 Richard Purdie
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
- *
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index d1e25aba8212..867c2cfd0038 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Event char devices, giving access to raw input device events.
  *
  * Copyright (c) 1999-2002 Vojtech Pavlik
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
index 73862a836062..61fa7e724172 100644
--- a/drivers/input/gameport/gameport.c
+++ b/drivers/input/gameport/gameport.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Generic gameport layer
  *
@@ -5,11 +6,6 @@
  * Copyright (c) 2005 Dmitry Torokhov
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
diff --git a/drivers/input/input-compat.c b/drivers/input/input-compat.c
index fda8d6d2a268..2ccd3eedbd67 100644
--- a/drivers/input/input-compat.c
+++ b/drivers/input/input-compat.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * 32bit compatibility wrappers for the input subsystem.
  *
  * Very heavily based on evdev.c - Copyright (c) 1999-2002 Vojtech Pavlik
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/export.h>
diff --git a/drivers/input/input-compat.h b/drivers/input/input-compat.h
index 08cd755e73fd..3b7bb12b023b 100644
--- a/drivers/input/input-compat.h
+++ b/drivers/input/input-compat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 #ifndef _INPUT_COMPAT_H
 #define _INPUT_COMPAT_H
 
@@ -5,10 +6,6 @@
  * 32bit compatibility wrappers for the input subsystem.
  *
  * Very heavily based on evdev.c - Copyright (c) 1999-2002 Vojtech Pavlik
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/compiler.h>
diff --git a/drivers/input/input-leds.c b/drivers/input/input-leds.c
index 99cc784e1264..0b11990ade46 100644
--- a/drivers/input/input-leds.c
+++ b/drivers/input/input-leds.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * LED support for the input layer
  *
  * Copyright 2010-2015 Samuel Thibault <samuel.thibault@ens-lyon.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/input/input-mt.c b/drivers/input/input-mt.c
index 6c7326c93721..a81e14148407 100644
--- a/drivers/input/input-mt.c
+++ b/drivers/input/input-mt.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Input Multitouch Library
  *
  * Copyright (c) 2008-2010 Henrik Rydberg
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/input/mt.h>
diff --git a/drivers/input/input-polldev.c b/drivers/input/input-polldev.c
index 78df5a74822e..9bf1c9aeb4c4 100644
--- a/drivers/input/input-polldev.c
+++ b/drivers/input/input-polldev.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Generic implementation of a polled input device
 
  * Copyright (c) 2007 Dmitry Torokhov
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
diff --git a/drivers/input/input.c b/drivers/input/input.c
index 3304aaaffe87..7f3c5fcb9ed6 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * The input core
  *
  * Copyright (c) 1999-2002 Vojtech Pavlik
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
 
 #define pr_fmt(fmt) KBUILD_BASENAME ": " fmt
 
diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c
index ac21c050fdb0..a2b5fbba2d3b 100644
--- a/drivers/input/joydev.c
+++ b/drivers/input/joydev.c
@@ -808,6 +808,7 @@ static bool joydev_dev_is_blacklisted(struct input_dev *dev)
 static bool joydev_dev_is_absolute_mouse(struct input_dev *dev)
 {
 	DECLARE_BITMAP(jd_scratch, KEY_CNT);
+	bool ev_match = false;
 
 	BUILD_BUG_ON(ABS_CNT > KEY_CNT || EV_CNT > KEY_CNT);
 
@@ -826,17 +827,36 @@ static bool joydev_dev_is_absolute_mouse(struct input_dev *dev)
 	 * considered to be an absolute mouse if the following is
 	 * true:
 	 *
-	 * 1) Event types are exactly EV_ABS, EV_KEY and EV_SYN.
+	 * 1) Event types are exactly
+	 *      EV_ABS, EV_KEY and EV_SYN
+	 *    or
+	 *      EV_ABS, EV_KEY, EV_SYN and EV_MSC
+	 *    or
+	 *      EV_ABS, EV_KEY, EV_SYN, EV_MSC and EV_REL.
 	 * 2) Absolute events are exactly ABS_X and ABS_Y.
 	 * 3) Keys are exactly BTN_LEFT, BTN_RIGHT and BTN_MIDDLE.
 	 * 4) Device is not on "Amiga" bus.
 	 */
 
 	bitmap_zero(jd_scratch, EV_CNT);
+	/* VMware VMMouse, HP ILO2 */
 	__set_bit(EV_ABS, jd_scratch);
 	__set_bit(EV_KEY, jd_scratch);
 	__set_bit(EV_SYN, jd_scratch);
-	if (!bitmap_equal(jd_scratch, dev->evbit, EV_CNT))
+	if (bitmap_equal(jd_scratch, dev->evbit, EV_CNT))
+		ev_match = true;
+
+	/* HP ILO2, AMI BMC firmware */
+	__set_bit(EV_MSC, jd_scratch);
+	if (bitmap_equal(jd_scratch, dev->evbit, EV_CNT))
+		ev_match = true;
+
+	/* VMware Virtual USB Mouse, QEMU USB Tablet, ATEN BMC firmware */
+	__set_bit(EV_REL, jd_scratch);
+	if (bitmap_equal(jd_scratch, dev->evbit, EV_CNT))
+		ev_match = true;
+
+	if (!ev_match)
 		return false;
 
 	bitmap_zero(jd_scratch, ABS_CNT);
diff --git a/drivers/input/joystick/iforce/Kconfig b/drivers/input/joystick/iforce/Kconfig
index 62dcc5b71641..f002fb88f2e7 100644
--- a/drivers/input/joystick/iforce/Kconfig
+++ b/drivers/input/joystick/iforce/Kconfig
@@ -14,15 +14,15 @@ config JOYSTICK_IFORCE
 	  module will be called iforce.
 
 config JOYSTICK_IFORCE_USB
-	bool "I-Force USB joysticks and wheels"
-	depends on JOYSTICK_IFORCE && (JOYSTICK_IFORCE=m || USB=y) && USB
+	tristate "I-Force USB joysticks and wheels"
+	depends on JOYSTICK_IFORCE && USB
 	help
 	  Say Y here if you have an I-Force joystick or steering wheel
 	  connected to your USB port.
 
 config JOYSTICK_IFORCE_232
-	bool "I-Force Serial joysticks and wheels"
-	depends on JOYSTICK_IFORCE && (JOYSTICK_IFORCE=m || SERIO=y) && SERIO
+	tristate "I-Force Serial joysticks and wheels"
+	depends on JOYSTICK_IFORCE && SERIO
 	help
 	  Say Y here if you have an I-Force joystick or steering wheel
 	  connected to your serial (COM) port.
diff --git a/drivers/input/joystick/iforce/Makefile b/drivers/input/joystick/iforce/Makefile
index fa79a49d7ca1..dbbe7c04010d 100644
--- a/drivers/input/joystick/iforce/Makefile
+++ b/drivers/input/joystick/iforce/Makefile
@@ -5,8 +5,7 @@
 # By Johann Deneux <johann.deneux@gmail.com>
 #
 
-obj-$(CONFIG_JOYSTICK_IFORCE)	+= iforce.o
-
+obj-$(CONFIG_JOYSTICK_IFORCE)		+= iforce.o
 iforce-y := iforce-ff.o iforce-main.o iforce-packets.o
-iforce-$(CONFIG_JOYSTICK_IFORCE_232)	+= iforce-serio.o
-iforce-$(CONFIG_JOYSTICK_IFORCE_USB)	+= iforce-usb.o
+obj-$(CONFIG_JOYSTICK_IFORCE_232)	+= iforce-serio.o
+obj-$(CONFIG_JOYSTICK_IFORCE_USB)	+= iforce-usb.o
diff --git a/drivers/input/joystick/iforce/iforce-ff.c b/drivers/input/joystick/iforce/iforce-ff.c
index 2ed7da7d1f3e..95c0348843e6 100644
--- a/drivers/input/joystick/iforce/iforce-ff.c
+++ b/drivers/input/joystick/iforce/iforce-ff.c
@@ -6,9 +6,6 @@
  *  USB/RS232 I-Force joysticks and wheels.
  */
 
-/*
- */
-
 #include "iforce.h"
 
 /*
@@ -372,12 +369,12 @@ int iforce_upload_periodic(struct iforce *iforce, struct ff_effect *effect, stru
 	}
 
 	switch (effect->u.periodic.waveform) {
-		case FF_SQUARE:		wave_code = 0x20; break;
-		case FF_TRIANGLE:	wave_code = 0x21; break;
-		case FF_SINE:		wave_code = 0x22; break;
-		case FF_SAW_UP:		wave_code = 0x23; break;
-		case FF_SAW_DOWN:	wave_code = 0x24; break;
-		default:		wave_code = 0x20; break;
+	case FF_SQUARE:		wave_code = 0x20; break;
+	case FF_TRIANGLE:	wave_code = 0x21; break;
+	case FF_SINE:		wave_code = 0x22; break;
+	case FF_SAW_UP:		wave_code = 0x23; break;
+	case FF_SAW_DOWN:	wave_code = 0x24; break;
+	default:		wave_code = 0x20; break;
 	}
 
 	if (!old || need_core(old, effect)) {
@@ -476,9 +473,9 @@ int iforce_upload_condition(struct iforce *iforce, struct ff_effect *effect, str
 	int core_err = 0;
 
 	switch (effect->type) {
-		case FF_SPRING:	type = 0x40; break;
-		case FF_DAMPER:	type = 0x41; break;
-		default: return -1;
+	case FF_SPRING:	type = 0x40; break;
+	case FF_DAMPER:	type = 0x41; break;
+	default: return -1;
 	}
 
 	if (!old || need_condition_modifier(iforce, old, effect)) {
diff --git a/drivers/input/joystick/iforce/iforce-main.c b/drivers/input/joystick/iforce/iforce-main.c
index 55f5b7bb4cac..b2a68bc9f0b4 100644
--- a/drivers/input/joystick/iforce/iforce-main.c
+++ b/drivers/input/joystick/iforce/iforce-main.c
@@ -6,13 +6,11 @@
  *  USB/RS232 I-Force joysticks and wheels.
  */
 
-/*
- */
-
+#include <asm/unaligned.h>
 #include "iforce.h"
 
 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>, Johann Deneux <johann.deneux@gmail.com>");
-MODULE_DESCRIPTION("USB/RS232 I-Force joysticks and wheels driver");
+MODULE_DESCRIPTION("Core I-Force joysticks and wheels driver");
 MODULE_LICENSE("GPL");
 
 static signed short btn_joystick[] =
@@ -55,6 +53,7 @@ static struct iforce_device iforce_device[] = {
 	{ 0x05ef, 0x8888, "AVB Top Shot Force Feedback Racing Wheel",	btn_wheel, abs_wheel, ff_iforce }, //?
 	{ 0x061c, 0xc0a4, "ACT LABS Force RS",                          btn_wheel, abs_wheel, ff_iforce }, //?
 	{ 0x061c, 0xc084, "ACT LABS Force RS",				btn_wheel, abs_wheel, ff_iforce },
+	{ 0x06a3, 0xff04, "Saitek R440 Force Wheel",			btn_wheel, abs_wheel, ff_iforce }, //?
 	{ 0x06f8, 0x0001, "Guillemot Race Leader Force Feedback",	btn_wheel, abs_wheel, ff_iforce }, //?
 	{ 0x06f8, 0x0001, "Guillemot Jet Leader Force Feedback",	btn_joystick, abs_joystick_rudder, ff_iforce },
 	{ 0x06f8, 0x0004, "Guillemot Force Feedback Racing Wheel",	btn_wheel, abs_wheel, ff_iforce }, //?
@@ -120,22 +119,21 @@ static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect,
  * Upload the effect
  */
 	switch (effect->type) {
+	case FF_PERIODIC:
+		ret = iforce_upload_periodic(iforce, effect, old);
+		break;
 
-		case FF_PERIODIC:
-			ret = iforce_upload_periodic(iforce, effect, old);
-			break;
-
-		case FF_CONSTANT:
-			ret = iforce_upload_constant(iforce, effect, old);
-			break;
+	case FF_CONSTANT:
+		ret = iforce_upload_constant(iforce, effect, old);
+		break;
 
-		case FF_SPRING:
-		case FF_DAMPER:
-			ret = iforce_upload_condition(iforce, effect, old);
-			break;
+	case FF_SPRING:
+	case FF_DAMPER:
+		ret = iforce_upload_condition(iforce, effect, old);
+		break;
 
-		default:
-			return -EINVAL;
+	default:
+		return -EINVAL;
 	}
 
 	if (ret == 0) {
@@ -173,15 +171,7 @@ static int iforce_open(struct input_dev *dev)
 {
 	struct iforce *iforce = input_get_drvdata(dev);
 
-	switch (iforce->bus) {
-#ifdef CONFIG_JOYSTICK_IFORCE_USB
-		case IFORCE_USB:
-			iforce->irq->dev = iforce->usbdev;
-			if (usb_submit_urb(iforce->irq, GFP_KERNEL))
-				return -EIO;
-			break;
-#endif
-	}
+	iforce->xport_ops->start_io(iforce);
 
 	if (test_bit(EV_FF, dev->evbit)) {
 		/* Enable force feedback */
@@ -214,27 +204,17 @@ static void iforce_close(struct input_dev *dev)
 			!test_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags));
 	}
 
-	switch (iforce->bus) {
-#ifdef CONFIG_JOYSTICK_IFORCE_USB
-	case IFORCE_USB:
-		usb_kill_urb(iforce->irq);
-		usb_kill_urb(iforce->out);
-		usb_kill_urb(iforce->ctrl);
-		break;
-#endif
-#ifdef CONFIG_JOYSTICK_IFORCE_232
-	case IFORCE_232:
-		//TODO: Wait for the last packets to be sent
-		break;
-#endif
-	}
+	iforce->xport_ops->stop_io(iforce);
 }
 
-int iforce_init_device(struct iforce *iforce)
+int iforce_init_device(struct device *parent, u16 bustype,
+		       struct iforce *iforce)
 {
 	struct input_dev *input_dev;
 	struct ff_device *ff;
-	unsigned char c[] = "CEOV";
+	u8 c[] = "CEOV";
+	u8 buf[IFORCE_MAX_LENGTH];
+	size_t len;
 	int i, error;
 	int ff_effects = 0;
 
@@ -252,20 +232,8 @@ int iforce_init_device(struct iforce *iforce)
  * Input device fields.
  */
 
-	switch (iforce->bus) {
-#ifdef CONFIG_JOYSTICK_IFORCE_USB
-	case IFORCE_USB:
-		input_dev->id.bustype = BUS_USB;
-		input_dev->dev.parent = &iforce->usbdev->dev;
-		break;
-#endif
-#ifdef CONFIG_JOYSTICK_IFORCE_232
-	case IFORCE_232:
-		input_dev->id.bustype = BUS_RS232;
-		input_dev->dev.parent = &iforce->serio->dev;
-		break;
-#endif
-	}
+	input_dev->id.bustype = bustype;
+	input_dev->dev.parent = parent;
 
 	input_set_drvdata(input_dev, iforce);
 
@@ -290,7 +258,7 @@ int iforce_init_device(struct iforce *iforce)
  */
 
 	for (i = 0; i < 20; i++)
-		if (!iforce_get_id_packet(iforce, "O"))
+		if (!iforce_get_id_packet(iforce, 'O', buf, &len))
 			break;
 
 	if (i == 20) { /* 5 seconds */
@@ -304,23 +272,23 @@ int iforce_init_device(struct iforce *iforce)
  * Get device info.
  */
 
-	if (!iforce_get_id_packet(iforce, "M"))
-		input_dev->id.vendor = (iforce->edata[2] << 8) | iforce->edata[1];
+	if (!iforce_get_id_packet(iforce, 'M', buf, &len) || len < 3)
+		input_dev->id.vendor = get_unaligned_le16(buf + 1);
 	else
 		dev_warn(&iforce->dev->dev, "Device does not respond to id packet M\n");
 
-	if (!iforce_get_id_packet(iforce, "P"))
-		input_dev->id.product = (iforce->edata[2] << 8) | iforce->edata[1];
+	if (!iforce_get_id_packet(iforce, 'P', buf, &len) || len < 3)
+		input_dev->id.product = get_unaligned_le16(buf + 1);
 	else
 		dev_warn(&iforce->dev->dev, "Device does not respond to id packet P\n");
 
-	if (!iforce_get_id_packet(iforce, "B"))
-		iforce->device_memory.end = (iforce->edata[2] << 8) | iforce->edata[1];
+	if (!iforce_get_id_packet(iforce, 'B', buf, &len) || len < 3)
+		iforce->device_memory.end = get_unaligned_le16(buf + 1);
 	else
 		dev_warn(&iforce->dev->dev, "Device does not respond to id packet B\n");
 
-	if (!iforce_get_id_packet(iforce, "N"))
-		ff_effects = iforce->edata[1];
+	if (!iforce_get_id_packet(iforce, 'N', buf, &len) || len < 2)
+		ff_effects = buf[1];
 	else
 		dev_warn(&iforce->dev->dev, "Device does not respond to id packet N\n");
 
@@ -336,8 +304,9 @@ int iforce_init_device(struct iforce *iforce)
  */
 
 	for (i = 0; c[i]; i++)
-		if (!iforce_get_id_packet(iforce, c + i))
-			iforce_dump_packet(iforce, "info", iforce->ecmd, iforce->edata);
+		if (!iforce_get_id_packet(iforce, c[i], buf, &len))
+			iforce_dump_packet(iforce, "info",
+					   (FF_CMD_QUERY & 0xff00) | len, buf);
 
 /*
  * Disable spring, enable force feedback.
@@ -371,34 +340,29 @@ int iforce_init_device(struct iforce *iforce)
 		signed short t = iforce->type->abs[i];
 
 		switch (t) {
+		case ABS_X:
+		case ABS_Y:
+		case ABS_WHEEL:
+			input_set_abs_params(input_dev, t, -1920, 1920, 16, 128);
+			set_bit(t, input_dev->ffbit);
+			break;
 
-			case ABS_X:
-			case ABS_Y:
-			case ABS_WHEEL:
-
-				input_set_abs_params(input_dev, t, -1920, 1920, 16, 128);
-				set_bit(t, input_dev->ffbit);
-				break;
-
-			case ABS_THROTTLE:
-			case ABS_GAS:
-			case ABS_BRAKE:
-
-				input_set_abs_params(input_dev, t, 0, 255, 0, 0);
-				break;
-
-			case ABS_RUDDER:
-
-				input_set_abs_params(input_dev, t, -128, 127, 0, 0);
-				break;
+		case ABS_THROTTLE:
+		case ABS_GAS:
+		case ABS_BRAKE:
+			input_set_abs_params(input_dev, t, 0, 255, 0, 0);
+			break;
 
-			case ABS_HAT0X:
-			case ABS_HAT0Y:
-		        case ABS_HAT1X:
-		        case ABS_HAT1Y:
+		case ABS_RUDDER:
+			input_set_abs_params(input_dev, t, -128, 127, 0, 0);
+			break;
 
-				input_set_abs_params(input_dev, t, -1, 1, 0, 0);
-				break;
+		case ABS_HAT0X:
+		case ABS_HAT0Y:
+		case ABS_HAT1X:
+		case ABS_HAT1Y:
+			input_set_abs_params(input_dev, t, -1, 1, 0, 0);
+			break;
 		}
 	}
 
@@ -431,35 +395,4 @@ int iforce_init_device(struct iforce *iforce)
  fail:	input_free_device(input_dev);
 	return error;
 }
-
-static int __init iforce_init(void)
-{
-	int err = 0;
-
-#ifdef CONFIG_JOYSTICK_IFORCE_USB
-	err = usb_register(&iforce_usb_driver);
-	if (err)
-		return err;
-#endif
-#ifdef CONFIG_JOYSTICK_IFORCE_232
-	err = serio_register_driver(&iforce_serio_drv);
-#ifdef CONFIG_JOYSTICK_IFORCE_USB
-	if (err)
-		usb_deregister(&iforce_usb_driver);
-#endif
-#endif
-	return err;
-}
-
-static void __exit iforce_exit(void)
-{
-#ifdef CONFIG_JOYSTICK_IFORCE_USB
-	usb_deregister(&iforce_usb_driver);
-#endif
-#ifdef CONFIG_JOYSTICK_IFORCE_232
-	serio_unregister_driver(&iforce_serio_drv);
-#endif
-}
-
-module_init(iforce_init);
-module_exit(iforce_exit);
+EXPORT_SYMBOL(iforce_init_device);
diff --git a/drivers/input/joystick/iforce/iforce-packets.c b/drivers/input/joystick/iforce/iforce-packets.c
index 42cd9730e4cc..763642c8cee9 100644
--- a/drivers/input/joystick/iforce/iforce-packets.c
+++ b/drivers/input/joystick/iforce/iforce-packets.c
@@ -6,9 +6,7 @@
  *  USB/RS232 I-Force joysticks and wheels.
  */
 
-/*
- */
-
+#include <asm/unaligned.h>
 #include "iforce.h"
 
 static struct {
@@ -79,27 +77,12 @@ int iforce_send_packet(struct iforce *iforce, u16 cmd, unsigned char* data)
 /*
  * If necessary, start the transmission
  */
-	switch (iforce->bus) {
-
-#ifdef CONFIG_JOYSTICK_IFORCE_232
-		case IFORCE_232:
-		if (empty)
-			iforce_serial_xmit(iforce);
-		break;
-#endif
-#ifdef CONFIG_JOYSTICK_IFORCE_USB
-		case IFORCE_USB:
-
-		if (iforce->usbdev && empty &&
-			!test_and_set_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags)) {
+	if (empty)
+		iforce->xport_ops->xmit(iforce);
 
-			iforce_usb_xmit(iforce);
-		}
-		break;
-#endif
-	}
 	return 0;
 }
+EXPORT_SYMBOL(iforce_send_packet);
 
 /* Start or stop an effect */
 int iforce_control_playback(struct iforce* iforce, u16 id, unsigned int value)
@@ -133,157 +116,96 @@ static int mark_core_as_ready(struct iforce *iforce, unsigned short addr)
 	return -1;
 }
 
-void iforce_process_packet(struct iforce *iforce, u16 cmd, unsigned char *data)
+static void iforce_report_hats_buttons(struct iforce *iforce, u8 *data)
 {
 	struct input_dev *dev = iforce->dev;
 	int i;
-	static int being_used = 0;
-
-	if (being_used)
-		dev_warn(&iforce->dev->dev,
-			 "re-entrant call to iforce_process %d\n", being_used);
-	being_used++;
-
-#ifdef CONFIG_JOYSTICK_IFORCE_232
-	if (HI(iforce->expect_packet) == HI(cmd)) {
-		iforce->expect_packet = 0;
-		iforce->ecmd = cmd;
-		memcpy(iforce->edata, data, IFORCE_MAX_LENGTH);
-	}
-#endif
-	wake_up(&iforce->wait);
-
-	if (!iforce->type) {
-		being_used--;
-		return;
-	}
-
-	switch (HI(cmd)) {
-
-		case 0x01:	/* joystick position data */
-		case 0x03:	/* wheel position data */
-			if (HI(cmd) == 1) {
-				input_report_abs(dev, ABS_X, (__s16) (((__s16)data[1] << 8) | data[0]));
-				input_report_abs(dev, ABS_Y, (__s16) (((__s16)data[3] << 8) | data[2]));
-				input_report_abs(dev, ABS_THROTTLE, 255 - data[4]);
-				if (LO(cmd) >= 8 && test_bit(ABS_RUDDER ,dev->absbit))
-					input_report_abs(dev, ABS_RUDDER, (__s8)data[7]);
-			} else {
-				input_report_abs(dev, ABS_WHEEL, (__s16) (((__s16)data[1] << 8) | data[0]));
-				input_report_abs(dev, ABS_GAS,   255 - data[2]);
-				input_report_abs(dev, ABS_BRAKE, 255 - data[3]);
-			}
 
-			input_report_abs(dev, ABS_HAT0X, iforce_hat_to_axis[data[6] >> 4].x);
-			input_report_abs(dev, ABS_HAT0Y, iforce_hat_to_axis[data[6] >> 4].y);
-
-			for (i = 0; iforce->type->btn[i] >= 0; i++)
-				input_report_key(dev, iforce->type->btn[i], data[(i >> 3) + 5] & (1 << (i & 7)));
-
-			/* If there are untouched bits left, interpret them as the second hat */
-			if (i <= 8) {
-				int btns = data[6];
-				if (test_bit(ABS_HAT1X, dev->absbit)) {
-					if (btns & 8) input_report_abs(dev, ABS_HAT1X, -1);
-					else if (btns & 2) input_report_abs(dev, ABS_HAT1X, 1);
-					else input_report_abs(dev, ABS_HAT1X, 0);
-				}
-				if (test_bit(ABS_HAT1Y, dev->absbit)) {
-					if (btns & 1) input_report_abs(dev, ABS_HAT1Y, -1);
-					else if (btns & 4) input_report_abs(dev, ABS_HAT1Y, 1);
-					else input_report_abs(dev, ABS_HAT1Y, 0);
-				}
-			}
+	input_report_abs(dev, ABS_HAT0X, iforce_hat_to_axis[data[6] >> 4].x);
+	input_report_abs(dev, ABS_HAT0Y, iforce_hat_to_axis[data[6] >> 4].y);
 
-			input_sync(dev);
+	for (i = 0; iforce->type->btn[i] >= 0; i++)
+		input_report_key(dev, iforce->type->btn[i],
+				 data[(i >> 3) + 5] & (1 << (i & 7)));
 
-			break;
+	/* If there are untouched bits left, interpret them as the second hat */
+	if (i <= 8) {
+		u8 btns = data[6];
 
-		case 0x02:	/* status report */
-			input_report_key(dev, BTN_DEAD, data[0] & 0x02);
-			input_sync(dev);
+		if (test_bit(ABS_HAT1X, dev->absbit)) {
+			if (btns & BIT(3))
+				input_report_abs(dev, ABS_HAT1X, -1);
+			else if (btns & BIT(1))
+				input_report_abs(dev, ABS_HAT1X, 1);
+			else
+				input_report_abs(dev, ABS_HAT1X, 0);
+		}
 
-			/* Check if an effect was just started or stopped */
-			i = data[1] & 0x7f;
-			if (data[1] & 0x80) {
-				if (!test_and_set_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) {
-					/* Report play event */
-					input_report_ff_status(dev, i, FF_STATUS_PLAYING);
-				}
-			} else if (test_and_clear_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) {
-				/* Report stop event */
-				input_report_ff_status(dev, i, FF_STATUS_STOPPED);
-			}
-			if (LO(cmd) > 3) {
-				int j;
-				for (j = 3; j < LO(cmd); j += 2)
-					mark_core_as_ready(iforce, data[j] | (data[j+1]<<8));
-			}
-			break;
+		if (test_bit(ABS_HAT1Y, dev->absbit)) {
+			if (btns & BIT(0))
+				input_report_abs(dev, ABS_HAT1Y, -1);
+			else if (btns & BIT(2))
+				input_report_abs(dev, ABS_HAT1Y, 1);
+			else
+				input_report_abs(dev, ABS_HAT1Y, 0);
+		}
 	}
-	being_used--;
 }
 
-int iforce_get_id_packet(struct iforce *iforce, char *packet)
+void iforce_process_packet(struct iforce *iforce,
+			   u8 packet_id, u8 *data, size_t len)
 {
-	switch (iforce->bus) {
+	struct input_dev *dev = iforce->dev;
+	int i, j;
 
-	case IFORCE_USB: {
-#ifdef CONFIG_JOYSTICK_IFORCE_USB
-		int status;
+	switch (packet_id) {
 
-		iforce->cr.bRequest = packet[0];
-		iforce->ctrl->dev = iforce->usbdev;
+	case 0x01:	/* joystick position data */
+		input_report_abs(dev, ABS_X,
+				 (__s16) get_unaligned_le16(data));
+		input_report_abs(dev, ABS_Y,
+				 (__s16) get_unaligned_le16(data + 2));
+		input_report_abs(dev, ABS_THROTTLE, 255 - data[4]);
 
-		status = usb_submit_urb(iforce->ctrl, GFP_KERNEL);
-		if (status) {
-			dev_err(&iforce->intf->dev,
-				"usb_submit_urb failed %d\n", status);
-			return -1;
-		}
+		if (len >= 8 && test_bit(ABS_RUDDER ,dev->absbit))
+			input_report_abs(dev, ABS_RUDDER, (__s8)data[7]);
 
-		wait_event_interruptible_timeout(iforce->wait,
-			iforce->ctrl->status != -EINPROGRESS, HZ);
+		iforce_report_hats_buttons(iforce, data);
 
-		if (iforce->ctrl->status) {
-			dev_dbg(&iforce->intf->dev,
-				"iforce->ctrl->status = %d\n",
-				iforce->ctrl->status);
-			usb_unlink_urb(iforce->ctrl);
-			return -1;
-		}
-#else
-		printk(KERN_DEBUG "iforce_get_id_packet: iforce->bus = USB!\n");
-#endif
-		}
+		input_sync(dev);
 		break;
 
-	case IFORCE_232:
+	case 0x03:	/* wheel position data */
+		input_report_abs(dev, ABS_WHEEL,
+				 (__s16) get_unaligned_le16(data));
+		input_report_abs(dev, ABS_GAS,   255 - data[2]);
+		input_report_abs(dev, ABS_BRAKE, 255 - data[3]);
+
+		iforce_report_hats_buttons(iforce, data);
 
-#ifdef CONFIG_JOYSTICK_IFORCE_232
-		iforce->expect_packet = FF_CMD_QUERY;
-		iforce_send_packet(iforce, FF_CMD_QUERY, packet);
+		input_sync(dev);
+		break;
 
-		wait_event_interruptible_timeout(iforce->wait,
-			!iforce->expect_packet, HZ);
+	case 0x02:	/* status report */
+		input_report_key(dev, BTN_DEAD, data[0] & 0x02);
+		input_sync(dev);
 
-		if (iforce->expect_packet) {
-			iforce->expect_packet = 0;
-			return -1;
+		/* Check if an effect was just started or stopped */
+		i = data[1] & 0x7f;
+		if (data[1] & 0x80) {
+			if (!test_and_set_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) {
+				/* Report play event */
+				input_report_ff_status(dev, i, FF_STATUS_PLAYING);
+			}
+		} else if (test_and_clear_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) {
+			/* Report stop event */
+			input_report_ff_status(dev, i, FF_STATUS_STOPPED);
 		}
-#else
-		dev_err(&iforce->dev->dev,
-			"iforce_get_id_packet: iforce->bus = SERIO!\n");
-#endif
-		break;
 
-	default:
-		dev_err(&iforce->dev->dev,
-			"iforce_get_id_packet: iforce->bus = %d\n",
-			iforce->bus);
+		for (j = 3; j < len; j += 2)
+			mark_core_as_ready(iforce, get_unaligned_le16(data + j));
+
 		break;
 	}
-
-	return -(iforce->edata[0] != packet[0]);
 }
-
+EXPORT_SYMBOL(iforce_process_packet);
diff --git a/drivers/input/joystick/iforce/iforce-serio.c b/drivers/input/joystick/iforce/iforce-serio.c
index 65a4fe26324f..f95a81b9fac7 100644
--- a/drivers/input/joystick/iforce/iforce-serio.c
+++ b/drivers/input/joystick/iforce/iforce-serio.c
@@ -6,13 +6,26 @@
  *  USB/RS232 I-Force joysticks and wheels.
  */
 
-/*
- */
-
+#include <linux/serio.h>
 #include "iforce.h"
 
-void iforce_serial_xmit(struct iforce *iforce)
+struct iforce_serio {
+	struct iforce iforce;
+
+	struct serio *serio;
+	int idx, pkt, len, id;
+	u8 csum;
+	u8 expect_packet;
+	u8 cmd_response[IFORCE_MAX_LENGTH];
+	u8 cmd_response_len;
+	u8 data_in[IFORCE_MAX_LENGTH];
+};
+
+static void iforce_serio_xmit(struct iforce *iforce)
 {
+	struct iforce_serio *iforce_serio = container_of(iforce,
+							 struct iforce_serio,
+							 iforce);
 	unsigned char cs;
 	int i;
 	unsigned long flags;
@@ -33,19 +46,20 @@ again:
 
 	cs = 0x2b;
 
-	serio_write(iforce->serio, 0x2b);
+	serio_write(iforce_serio->serio, 0x2b);
 
-	serio_write(iforce->serio, iforce->xmit.buf[iforce->xmit.tail]);
+	serio_write(iforce_serio->serio, iforce->xmit.buf[iforce->xmit.tail]);
 	cs ^= iforce->xmit.buf[iforce->xmit.tail];
 	XMIT_INC(iforce->xmit.tail, 1);
 
 	for (i=iforce->xmit.buf[iforce->xmit.tail]; i >= 0; --i) {
-		serio_write(iforce->serio, iforce->xmit.buf[iforce->xmit.tail]);
+		serio_write(iforce_serio->serio,
+			    iforce->xmit.buf[iforce->xmit.tail]);
 		cs ^= iforce->xmit.buf[iforce->xmit.tail];
 		XMIT_INC(iforce->xmit.tail, 1);
 	}
 
-	serio_write(iforce->serio, cs);
+	serio_write(iforce_serio->serio, cs);
 
 	if (test_and_clear_bit(IFORCE_XMIT_AGAIN, iforce->xmit_flags))
 		goto again;
@@ -55,54 +69,118 @@ again:
 	spin_unlock_irqrestore(&iforce->xmit_lock, flags);
 }
 
+static int iforce_serio_get_id(struct iforce *iforce, u8 id,
+			       u8 *response_data, size_t *response_len)
+{
+	struct iforce_serio *iforce_serio = container_of(iforce,
+							 struct iforce_serio,
+							 iforce);
+
+	iforce_serio->expect_packet = HI(FF_CMD_QUERY);
+	iforce_serio->cmd_response_len = 0;
+
+	iforce_send_packet(iforce, FF_CMD_QUERY, &id);
+
+	wait_event_interruptible_timeout(iforce->wait,
+					 !iforce_serio->expect_packet, HZ);
+
+	if (iforce_serio->expect_packet) {
+		iforce_serio->expect_packet = 0;
+		return -ETIMEDOUT;
+	}
+
+	if (iforce_serio->cmd_response[0] != id)
+		return -EIO;
+
+	memcpy(response_data, iforce_serio->cmd_response,
+	       iforce_serio->cmd_response_len);
+	*response_len = iforce_serio->cmd_response_len;
+
+	return 0;
+}
+
+static int iforce_serio_start_io(struct iforce *iforce)
+{
+	/* No special handling required */
+	return 0;
+}
+
+static void iforce_serio_stop_io(struct iforce *iforce)
+{
+	//TODO: Wait for the last packets to be sent
+}
+
+static const struct iforce_xport_ops iforce_serio_xport_ops = {
+	.xmit		= iforce_serio_xmit,
+	.get_id		= iforce_serio_get_id,
+	.start_io	= iforce_serio_start_io,
+	.stop_io	= iforce_serio_stop_io,
+};
+
 static void iforce_serio_write_wakeup(struct serio *serio)
 {
 	struct iforce *iforce = serio_get_drvdata(serio);
 
-	iforce_serial_xmit(iforce);
+	iforce_serio_xmit(iforce);
 }
 
 static irqreturn_t iforce_serio_irq(struct serio *serio,
-		unsigned char data, unsigned int flags)
+				    unsigned char data, unsigned int flags)
 {
-	struct iforce *iforce = serio_get_drvdata(serio);
+	struct iforce_serio *iforce_serio = serio_get_drvdata(serio);
+	struct iforce *iforce = &iforce_serio->iforce;
 
-	if (!iforce->pkt) {
+	if (!iforce_serio->pkt) {
 		if (data == 0x2b)
-			iforce->pkt = 1;
+			iforce_serio->pkt = 1;
 		goto out;
 	}
 
-	if (!iforce->id) {
+	if (!iforce_serio->id) {
 		if (data > 3 && data != 0xff)
-			iforce->pkt = 0;
+			iforce_serio->pkt = 0;
 		else
-			iforce->id = data;
+			iforce_serio->id = data;
 		goto out;
 	}
 
-	if (!iforce->len) {
+	if (!iforce_serio->len) {
 		if (data > IFORCE_MAX_LENGTH) {
-			iforce->pkt = 0;
-			iforce->id = 0;
+			iforce_serio->pkt = 0;
+			iforce_serio->id = 0;
 		} else {
-			iforce->len = data;
+			iforce_serio->len = data;
 		}
 		goto out;
 	}
 
-	if (iforce->idx < iforce->len) {
-		iforce->csum += iforce->data[iforce->idx++] = data;
+	if (iforce_serio->idx < iforce_serio->len) {
+		iforce_serio->data_in[iforce_serio->idx++] = data;
+		iforce_serio->csum += data;
 		goto out;
 	}
 
-	if (iforce->idx == iforce->len) {
-		iforce_process_packet(iforce, (iforce->id << 8) | iforce->idx, iforce->data);
-		iforce->pkt = 0;
-		iforce->id  = 0;
-		iforce->len = 0;
-		iforce->idx = 0;
-		iforce->csum = 0;
+	if (iforce_serio->idx == iforce_serio->len) {
+		/* Handle command completion */
+		if (iforce_serio->expect_packet == iforce_serio->id) {
+			iforce_serio->expect_packet = 0;
+			memcpy(iforce_serio->cmd_response,
+			       iforce_serio->data_in, IFORCE_MAX_LENGTH);
+			iforce_serio->cmd_response_len = iforce_serio->len;
+
+			/* Signal that command is done */
+			wake_up(&iforce->wait);
+		} else if (likely(iforce->type)) {
+			iforce_process_packet(iforce, iforce_serio->id,
+					      iforce_serio->data_in,
+					      iforce_serio->len);
+		}
+
+		iforce_serio->pkt = 0;
+		iforce_serio->id  = 0;
+		iforce_serio->len = 0;
+		iforce_serio->idx = 0;
+		iforce_serio->csum = 0;
 	}
 out:
 	return IRQ_HANDLED;
@@ -110,23 +188,23 @@ out:
 
 static int iforce_serio_connect(struct serio *serio, struct serio_driver *drv)
 {
-	struct iforce *iforce;
+	struct iforce_serio *iforce_serio;
 	int err;
 
-	iforce = kzalloc(sizeof(struct iforce), GFP_KERNEL);
-	if (!iforce)
+	iforce_serio = kzalloc(sizeof(*iforce_serio), GFP_KERNEL);
+	if (!iforce_serio)
 		return -ENOMEM;
 
-	iforce->bus = IFORCE_232;
-	iforce->serio = serio;
+	iforce_serio->iforce.xport_ops = &iforce_serio_xport_ops;
 
-	serio_set_drvdata(serio, iforce);
+	iforce_serio->serio = serio;
+	serio_set_drvdata(serio, iforce_serio);
 
 	err = serio_open(serio, drv);
 	if (err)
 		goto fail1;
 
-	err = iforce_init_device(iforce);
+	err = iforce_init_device(&serio->dev, BUS_RS232, &iforce_serio->iforce);
 	if (err)
 		goto fail2;
 
@@ -134,18 +212,18 @@ static int iforce_serio_connect(struct serio *serio, struct serio_driver *drv)
 
  fail2:	serio_close(serio);
  fail1:	serio_set_drvdata(serio, NULL);
-	kfree(iforce);
+	kfree(iforce_serio);
 	return err;
 }
 
 static void iforce_serio_disconnect(struct serio *serio)
 {
-	struct iforce *iforce = serio_get_drvdata(serio);
+	struct iforce_serio *iforce_serio = serio_get_drvdata(serio);
 
-	input_unregister_device(iforce->dev);
+	input_unregister_device(iforce_serio->iforce.dev);
 	serio_close(serio);
 	serio_set_drvdata(serio, NULL);
-	kfree(iforce);
+	kfree(iforce_serio);
 }
 
 static const struct serio_device_id iforce_serio_ids[] = {
@@ -171,3 +249,9 @@ struct serio_driver iforce_serio_drv = {
 	.connect	= iforce_serio_connect,
 	.disconnect	= iforce_serio_disconnect,
 };
+
+module_serio_driver(iforce_serio_drv);
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>, Johann Deneux <johann.deneux@gmail.com>");
+MODULE_DESCRIPTION("RS232 I-Force joysticks and wheels driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/joystick/iforce/iforce-usb.c b/drivers/input/joystick/iforce/iforce-usb.c
index f1569ae8381b..29abfeeef9a5 100644
--- a/drivers/input/joystick/iforce/iforce-usb.c
+++ b/drivers/input/joystick/iforce/iforce-usb.c
@@ -6,13 +6,24 @@
  *  USB/RS232 I-Force joysticks and wheels.
  */
 
-/*
- */
-
+#include <linux/usb.h>
 #include "iforce.h"
 
-void iforce_usb_xmit(struct iforce *iforce)
+struct iforce_usb {
+	struct iforce iforce;
+
+	struct usb_device *usbdev;
+	struct usb_interface *intf;
+	struct urb *irq, *out;
+
+	u8 data_in[IFORCE_MAX_LENGTH] ____cacheline_aligned;
+	u8 data_out[IFORCE_MAX_LENGTH] ____cacheline_aligned;
+};
+
+static void __iforce_usb_xmit(struct iforce *iforce)
 {
+	struct iforce_usb *iforce_usb = container_of(iforce, struct iforce_usb,
+						     iforce);
 	int n, c;
 	unsigned long flags;
 
@@ -24,31 +35,32 @@ void iforce_usb_xmit(struct iforce *iforce)
 		return;
 	}
 
-	((char *)iforce->out->transfer_buffer)[0] = iforce->xmit.buf[iforce->xmit.tail];
+	((char *)iforce_usb->out->transfer_buffer)[0] = iforce->xmit.buf[iforce->xmit.tail];
 	XMIT_INC(iforce->xmit.tail, 1);
 	n = iforce->xmit.buf[iforce->xmit.tail];
 	XMIT_INC(iforce->xmit.tail, 1);
 
-	iforce->out->transfer_buffer_length = n + 1;
-	iforce->out->dev = iforce->usbdev;
+	iforce_usb->out->transfer_buffer_length = n + 1;
+	iforce_usb->out->dev = iforce_usb->usbdev;
 
 	/* Copy rest of data then */
 	c = CIRC_CNT_TO_END(iforce->xmit.head, iforce->xmit.tail, XMIT_SIZE);
 	if (n < c) c=n;
 
-	memcpy(iforce->out->transfer_buffer + 1,
+	memcpy(iforce_usb->out->transfer_buffer + 1,
 	       &iforce->xmit.buf[iforce->xmit.tail],
 	       c);
 	if (n != c) {
-		memcpy(iforce->out->transfer_buffer + 1 + c,
+		memcpy(iforce_usb->out->transfer_buffer + 1 + c,
 		       &iforce->xmit.buf[0],
 		       n-c);
 	}
 	XMIT_INC(iforce->xmit.tail, n);
 
-	if ( (n=usb_submit_urb(iforce->out, GFP_ATOMIC)) ) {
+	if ( (n=usb_submit_urb(iforce_usb->out, GFP_ATOMIC)) ) {
 		clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
-		dev_warn(&iforce->intf->dev, "usb_submit_urb failed %d\n", n);
+		dev_warn(&iforce_usb->intf->dev,
+			 "usb_submit_urb failed %d\n", n);
 	}
 
 	/* The IFORCE_XMIT_RUNNING bit is not cleared here. That's intended.
@@ -57,10 +69,77 @@ void iforce_usb_xmit(struct iforce *iforce)
 	spin_unlock_irqrestore(&iforce->xmit_lock, flags);
 }
 
+static void iforce_usb_xmit(struct iforce *iforce)
+{
+	if (!test_and_set_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags))
+		__iforce_usb_xmit(iforce);
+}
+
+static int iforce_usb_get_id(struct iforce *iforce, u8 id,
+			     u8 *response_data, size_t *response_len)
+{
+	struct iforce_usb *iforce_usb = container_of(iforce, struct iforce_usb,
+						     iforce);
+	u8 *buf;
+	int status;
+
+	buf = kmalloc(IFORCE_MAX_LENGTH, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	status = usb_control_msg(iforce_usb->usbdev,
+				 usb_rcvctrlpipe(iforce_usb->usbdev, 0),
+				 id,
+				 USB_TYPE_VENDOR | USB_DIR_IN |
+					USB_RECIP_INTERFACE,
+				 0, 0, buf, IFORCE_MAX_LENGTH, HZ);
+	if (status < 0) {
+		dev_err(&iforce_usb->intf->dev,
+			"usb_submit_urb failed: %d\n", status);
+	} else if (buf[0] != id) {
+		status = -EIO;
+	} else {
+		memcpy(response_data, buf, status);
+		*response_len = status;
+		status = 0;
+	}
+
+	kfree(buf);
+	return status;
+}
+
+static int iforce_usb_start_io(struct iforce *iforce)
+{
+	struct iforce_usb *iforce_usb = container_of(iforce, struct iforce_usb,
+						     iforce);
+
+	if (usb_submit_urb(iforce_usb->irq, GFP_KERNEL))
+		return -EIO;
+
+	return 0;
+}
+
+static void iforce_usb_stop_io(struct iforce *iforce)
+{
+	struct iforce_usb *iforce_usb = container_of(iforce, struct iforce_usb,
+						     iforce);
+
+	usb_kill_urb(iforce_usb->irq);
+	usb_kill_urb(iforce_usb->out);
+}
+
+static const struct iforce_xport_ops iforce_usb_xport_ops = {
+	.xmit		= iforce_usb_xmit,
+	.get_id		= iforce_usb_get_id,
+	.start_io	= iforce_usb_start_io,
+	.stop_io	= iforce_usb_stop_io,
+};
+
 static void iforce_usb_irq(struct urb *urb)
 {
-	struct iforce *iforce = urb->context;
-	struct device *dev = &iforce->intf->dev;
+	struct iforce_usb *iforce_usb = urb->context;
+	struct iforce *iforce = &iforce_usb->iforce;
+	struct device *dev = &iforce_usb->intf->dev;
 	int status;
 
 	switch (urb->status) {
@@ -80,11 +159,11 @@ static void iforce_usb_irq(struct urb *urb)
 		goto exit;
 	}
 
-	iforce_process_packet(iforce,
-		(iforce->data[0] << 8) | (urb->actual_length - 1), iforce->data + 1);
+	iforce_process_packet(iforce, iforce_usb->data_in[0],
+			      iforce_usb->data_in + 1, urb->actual_length - 1);
 
 exit:
-	status = usb_submit_urb (urb, GFP_ATOMIC);
+	status = usb_submit_urb(urb, GFP_ATOMIC);
 	if (status)
 		dev_err(dev, "%s - usb_submit_urb failed with result %d\n",
 			__func__, status);
@@ -92,35 +171,28 @@ exit:
 
 static void iforce_usb_out(struct urb *urb)
 {
-	struct iforce *iforce = urb->context;
+	struct iforce_usb *iforce_usb = urb->context;
+	struct iforce *iforce = &iforce_usb->iforce;
 
 	if (urb->status) {
 		clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
-		dev_dbg(&iforce->intf->dev, "urb->status %d, exiting\n",
+		dev_dbg(&iforce_usb->intf->dev, "urb->status %d, exiting\n",
 			urb->status);
 		return;
 	}
 
-	iforce_usb_xmit(iforce);
+	__iforce_usb_xmit(iforce);
 
 	wake_up(&iforce->wait);
 }
 
-static void iforce_usb_ctrl(struct urb *urb)
-{
-	struct iforce *iforce = urb->context;
-	if (urb->status) return;
-	iforce->ecmd = 0xff00 | urb->actual_length;
-	wake_up(&iforce->wait);
-}
-
 static int iforce_usb_probe(struct usb_interface *intf,
 				const struct usb_device_id *id)
 {
 	struct usb_device *dev = interface_to_usbdev(intf);
 	struct usb_host_interface *interface;
 	struct usb_endpoint_descriptor *epirq, *epout;
-	struct iforce *iforce;
+	struct iforce_usb *iforce_usb;
 	int err = -ENOMEM;
 
 	interface = intf->cur_altsetting;
@@ -131,48 +203,45 @@ static int iforce_usb_probe(struct usb_interface *intf,
 	epirq = &interface->endpoint[0].desc;
 	epout = &interface->endpoint[1].desc;
 
-	if (!(iforce = kzalloc(sizeof(struct iforce) + 32, GFP_KERNEL)))
+	iforce_usb = kzalloc(sizeof(*iforce_usb), GFP_KERNEL);
+	if (!iforce_usb)
 		goto fail;
 
-	if (!(iforce->irq = usb_alloc_urb(0, GFP_KERNEL)))
+	iforce_usb->irq = usb_alloc_urb(0, GFP_KERNEL);
+	if (!iforce_usb->irq)
 		goto fail;
 
-	if (!(iforce->out = usb_alloc_urb(0, GFP_KERNEL)))
+	iforce_usb->out = usb_alloc_urb(0, GFP_KERNEL);
+	if (!iforce_usb->out)
 		goto fail;
 
-	if (!(iforce->ctrl = usb_alloc_urb(0, GFP_KERNEL)))
-		goto fail;
+	iforce_usb->iforce.xport_ops = &iforce_usb_xport_ops;
 
-	iforce->bus = IFORCE_USB;
-	iforce->usbdev = dev;
-	iforce->intf = intf;
+	iforce_usb->usbdev = dev;
+	iforce_usb->intf = intf;
 
-	iforce->cr.bRequestType = USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_INTERFACE;
-	iforce->cr.wIndex = 0;
-	iforce->cr.wLength = cpu_to_le16(16);
+	usb_fill_int_urb(iforce_usb->irq, dev,
+			 usb_rcvintpipe(dev, epirq->bEndpointAddress),
+			 iforce_usb->data_in, sizeof(iforce_usb->data_in),
+			 iforce_usb_irq, iforce_usb, epirq->bInterval);
 
-	usb_fill_int_urb(iforce->irq, dev, usb_rcvintpipe(dev, epirq->bEndpointAddress),
-			iforce->data, 16, iforce_usb_irq, iforce, epirq->bInterval);
+	usb_fill_int_urb(iforce_usb->out, dev,
+			 usb_sndintpipe(dev, epout->bEndpointAddress),
+			 iforce_usb->data_out, sizeof(iforce_usb->data_out),
+			 iforce_usb_out, iforce_usb, epout->bInterval);
 
-	usb_fill_int_urb(iforce->out, dev, usb_sndintpipe(dev, epout->bEndpointAddress),
-			iforce + 1, 32, iforce_usb_out, iforce, epout->bInterval);
-
-	usb_fill_control_urb(iforce->ctrl, dev, usb_rcvctrlpipe(dev, 0),
-			(void*) &iforce->cr, iforce->edata, 16, iforce_usb_ctrl, iforce);
-
-	err = iforce_init_device(iforce);
+	err = iforce_init_device(&intf->dev, BUS_USB, &iforce_usb->iforce);
 	if (err)
 		goto fail;
 
-	usb_set_intfdata(intf, iforce);
+	usb_set_intfdata(intf, iforce_usb);
 	return 0;
 
 fail:
-	if (iforce) {
-		usb_free_urb(iforce->irq);
-		usb_free_urb(iforce->out);
-		usb_free_urb(iforce->ctrl);
-		kfree(iforce);
+	if (iforce_usb) {
+		usb_free_urb(iforce_usb->irq);
+		usb_free_urb(iforce_usb->out);
+		kfree(iforce_usb);
 	}
 
 	return err;
@@ -180,17 +249,16 @@ fail:
 
 static void iforce_usb_disconnect(struct usb_interface *intf)
 {
-	struct iforce *iforce = usb_get_intfdata(intf);
+	struct iforce_usb *iforce_usb = usb_get_intfdata(intf);
 
 	usb_set_intfdata(intf, NULL);
 
-	input_unregister_device(iforce->dev);
+	input_unregister_device(iforce_usb->iforce.dev);
 
-	usb_free_urb(iforce->irq);
-	usb_free_urb(iforce->out);
-	usb_free_urb(iforce->ctrl);
+	usb_free_urb(iforce_usb->irq);
+	usb_free_urb(iforce_usb->out);
 
-	kfree(iforce);
+	kfree(iforce_usb);
 }
 
 static const struct usb_device_id iforce_usb_ids[] = {
@@ -202,6 +270,7 @@ static const struct usb_device_id iforce_usb_ids[] = {
 	{ USB_DEVICE(0x05ef, 0x8888) },		/* AVB Top Shot FFB Racing Wheel */
 	{ USB_DEVICE(0x061c, 0xc0a4) },         /* ACT LABS Force RS */
 	{ USB_DEVICE(0x061c, 0xc084) },         /* ACT LABS Force RS */
+	{ USB_DEVICE(0x06a3, 0xff04) },		/* Saitek R440 Force Wheel */
 	{ USB_DEVICE(0x06f8, 0x0001) },		/* Guillemot Race Leader Force Feedback */
 	{ USB_DEVICE(0x06f8, 0x0003) },		/* Guillemot Jet Leader Force Feedback */
 	{ USB_DEVICE(0x06f8, 0x0004) },		/* Guillemot Force Feedback Racing Wheel */
@@ -217,3 +286,9 @@ struct usb_driver iforce_usb_driver = {
 	.disconnect =	iforce_usb_disconnect,
 	.id_table =	iforce_usb_ids,
 };
+
+module_usb_driver(iforce_usb_driver);
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>, Johann Deneux <johann.deneux@gmail.com>");
+MODULE_DESCRIPTION("USB I-Force joysticks and wheels driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/joystick/iforce/iforce.h b/drivers/input/joystick/iforce/iforce.h
index f1681706f526..6aa761ebbdf7 100644
--- a/drivers/input/joystick/iforce/iforce.h
+++ b/drivers/input/joystick/iforce/iforce.h
@@ -6,16 +6,11 @@
  *  USB/RS232 I-Force joysticks and wheels.
  */
 
-/*
- */
-
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/input.h>
 #include <linux/module.h>
 #include <linux/spinlock.h>
-#include <linux/usb.h>
-#include <linux/serio.h>
 #include <linux/circ_buf.h>
 #include <linux/mutex.h>
 
@@ -28,10 +23,6 @@
 
 #define IFORCE_MAX_LENGTH	16
 
-/* iforce::bus */
-#define IFORCE_232	1
-#define IFORCE_USB	2
-
 #define IFORCE_EFFECTS_MAX	32
 
 /* Each force feedback effect is made of one core effect, which can be
@@ -81,27 +72,21 @@ struct iforce_device {
 	signed short *ff;
 };
 
+struct iforce;
+
+struct iforce_xport_ops {
+	void (*xmit)(struct iforce *iforce);
+	int (*get_id)(struct iforce *iforce, u8 id,
+		      u8 *response_data, size_t *response_len);
+	int (*start_io)(struct iforce *iforce);
+	void (*stop_io)(struct iforce *iforce);
+};
+
 struct iforce {
 	struct input_dev *dev;		/* Input device interface */
 	struct iforce_device *type;
-	int bus;
-
-	unsigned char data[IFORCE_MAX_LENGTH];
-	unsigned char edata[IFORCE_MAX_LENGTH];
-	u16 ecmd;
-	u16 expect_packet;
-
-#ifdef CONFIG_JOYSTICK_IFORCE_232
-	struct serio *serio;		/* RS232 transfer */
-	int idx, pkt, len, id;
-	unsigned char csum;
-#endif
-#ifdef CONFIG_JOYSTICK_IFORCE_USB
-	struct usb_device *usbdev;	/* USB transfer */
-	struct usb_interface *intf;
-	struct urb *irq, *out, *ctrl;
-	struct usb_ctrlrequest cr;
-#endif
+	const struct iforce_xport_ops *xport_ops;
+
 	spinlock_t xmit_lock;
 	/* Buffer used for asynchronous sending of bytes to the device */
 	struct circ_buf xmit;
@@ -127,23 +112,24 @@ struct iforce {
 /* Encode a time value */
 #define TIME_SCALE(a)	(a)
 
+static inline int iforce_get_id_packet(struct iforce *iforce, u8 id,
+				       u8 *response_data, size_t *response_len)
+{
+	return iforce->xport_ops->get_id(iforce, id,
+					 response_data, response_len);
+}
 
 /* Public functions */
-/* iforce-serio.c */
-void iforce_serial_xmit(struct iforce *iforce);
-
-/* iforce-usb.c */
-void iforce_usb_xmit(struct iforce *iforce);
-
 /* iforce-main.c */
-int iforce_init_device(struct iforce *iforce);
+int iforce_init_device(struct device *parent, u16 bustype,
+		       struct iforce *iforce);
 
 /* iforce-packets.c */
 int iforce_control_playback(struct iforce*, u16 id, unsigned int);
-void iforce_process_packet(struct iforce *iforce, u16 cmd, unsigned char *data);
+void iforce_process_packet(struct iforce *iforce,
+			   u8 packet_id, u8 *data, size_t len);
 int iforce_send_packet(struct iforce *iforce, u16 cmd, unsigned char* data);
 void iforce_dump_packet(struct iforce *iforce, char *msg, u16 cmd, unsigned char *data);
-int iforce_get_id_packet(struct iforce *iforce, char *packet);
 
 /* iforce-ff.c */
 int iforce_upload_periodic(struct iforce *, struct ff_effect *, struct ff_effect *);
diff --git a/drivers/input/joystick/walkera0701.c b/drivers/input/joystick/walkera0701.c
index dce313dc260a..56abc8c6c763 100644
--- a/drivers/input/joystick/walkera0701.c
+++ b/drivers/input/joystick/walkera0701.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  Parallel port to Walkera WK-0701 TX joystick
  *
@@ -6,11 +7,6 @@
  *  More about driver:  <file:Documentation/input/devices/walkera0701.rst>
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
-*/
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 7c4f19dab34f..8e9c3ea9d5e7 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -71,6 +71,22 @@ config KEYBOARD_AMIGA
 config ATARI_KBD_CORE
 	bool
 
+config KEYBOARD_APPLESPI
+	tristate "Apple SPI keyboard and trackpad"
+	depends on ACPI && EFI
+	depends on SPI
+	depends on X86 || COMPILE_TEST
+	help
+	  Say Y here if you are running Linux on any Apple MacBook8,1 or later,
+	  or any MacBookPro13,* or MacBookPro14,*.
+
+	  You will also need to enable appropriate SPI master controllers:
+	  spi_pxa2xx_platform and spi_pxa2xx_pci for MacBook8,1, and
+	  spi_pxa2xx_platform and intel_lpss_pci for the rest.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called applespi.
+
 config KEYBOARD_ATARI
 	tristate "Atari keyboard"
 	depends on ATARI
diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
index f0291ca39f62..06a0af6efeae 100644
--- a/drivers/input/keyboard/Makefile
+++ b/drivers/input/keyboard/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_KEYBOARD_ADP5520)		+= adp5520-keys.o
 obj-$(CONFIG_KEYBOARD_ADP5588)		+= adp5588-keys.o
 obj-$(CONFIG_KEYBOARD_ADP5589)		+= adp5589-keys.o
 obj-$(CONFIG_KEYBOARD_AMIGA)		+= amikbd.o
+obj-$(CONFIG_KEYBOARD_APPLESPI)		+= applespi.o
 obj-$(CONFIG_KEYBOARD_ATARI)		+= atakbd.o
 obj-$(CONFIG_KEYBOARD_ATKBD)		+= atkbd.o
 obj-$(CONFIG_KEYBOARD_BCM)		+= bcm-keypad.o
diff --git a/drivers/input/keyboard/adc-keys.c b/drivers/input/keyboard/adc-keys.c
index c255af21e71a..9885fd56f5f9 100644
--- a/drivers/input/keyboard/adc-keys.c
+++ b/drivers/input/keyboard/adc-keys.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Input driver for resistor ladder connected on ADC
  *
  * Copyright (c) 2016 Alexandre Belloni
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/err.h>
diff --git a/drivers/input/keyboard/adp5589-keys.c b/drivers/input/keyboard/adp5589-keys.c
index 4c05c70a8cf3..4f96a4a99e5b 100644
--- a/drivers/input/keyboard/adp5589-keys.c
+++ b/drivers/input/keyboard/adp5589-keys.c
@@ -505,6 +505,7 @@ static int adp5589_gpio_add(struct adp5589_kpad *kpad)
 	if (!gpio_data)
 		return 0;
 
+	kpad->gc.parent = dev;
 	kpad->gc.ngpio = adp5589_build_gpiomap(kpad, pdata);
 	if (kpad->gc.ngpio == 0) {
 		dev_info(dev, "No unused gpios left to export\n");
diff --git a/drivers/input/keyboard/applespi.c b/drivers/input/keyboard/applespi.c
new file mode 100644
index 000000000000..548737e7aeda
--- /dev/null
+++ b/drivers/input/keyboard/applespi.c
@@ -0,0 +1,1977 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * MacBook (Pro) SPI keyboard and touchpad driver
+ *
+ * Copyright (c) 2015-2018 Federico Lorenzi
+ * Copyright (c) 2017-2018 Ronald Tschalär
+ */
+
+/*
+ * The keyboard and touchpad controller on the MacBookAir6, MacBookPro12,
+ * MacBook8 and newer can be driven either by USB or SPI. However the USB
+ * pins are only connected on the MacBookAir6 and 7 and the MacBookPro12.
+ * All others need this driver. The interface is selected using ACPI methods:
+ *
+ * * UIEN ("USB Interface Enable"): If invoked with argument 1, disables SPI
+ *   and enables USB. If invoked with argument 0, disables USB.
+ * * UIST ("USB Interface Status"): Returns 1 if USB is enabled, 0 otherwise.
+ * * SIEN ("SPI Interface Enable"): If invoked with argument 1, disables USB
+ *   and enables SPI. If invoked with argument 0, disables SPI.
+ * * SIST ("SPI Interface Status"): Returns 1 if SPI is enabled, 0 otherwise.
+ * * ISOL: Resets the four GPIO pins used for SPI. Intended to be invoked with
+ *   argument 1, then once more with argument 0.
+ *
+ * UIEN and UIST are only provided on models where the USB pins are connected.
+ *
+ * SPI-based Protocol
+ * ------------------
+ *
+ * The device and driver exchange messages (struct message); each message is
+ * encapsulated in one or more packets (struct spi_packet). There are two types
+ * of exchanges: reads, and writes. A read is signaled by a GPE, upon which one
+ * message can be read from the device. A write exchange consists of writing a
+ * command message, immediately reading a short status packet, and then, upon
+ * receiving a GPE, reading the response message. Write exchanges cannot be
+ * interleaved, i.e. a new write exchange must not be started till the previous
+ * write exchange is complete. Whether a received message is part of a read or
+ * write exchange is indicated in the encapsulating packet's flags field.
+ *
+ * A single message may be too large to fit in a single packet (which has a
+ * fixed, 256-byte size). In that case it will be split over multiple,
+ * consecutive packets.
+ */
+
+#include <linux/acpi.h>
+#include <linux/crc16.h>
+#include <linux/debugfs.h>
+#include <linux/delay.h>
+#include <linux/efi.h>
+#include <linux/input.h>
+#include <linux/input/mt.h>
+#include <linux/leds.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/spi/spi.h>
+#include <linux/wait.h>
+#include <linux/workqueue.h>
+
+#include <asm/barrier.h>
+#include <asm/unaligned.h>
+
+#define CREATE_TRACE_POINTS
+#include "applespi.h"
+#include "applespi_trace.h"
+
+#define APPLESPI_PACKET_SIZE	256
+#define APPLESPI_STATUS_SIZE	4
+
+#define PACKET_TYPE_READ	0x20
+#define PACKET_TYPE_WRITE	0x40
+#define PACKET_DEV_KEYB		0x01
+#define PACKET_DEV_TPAD		0x02
+#define PACKET_DEV_INFO		0xd0
+
+#define MAX_ROLLOVER		6
+
+#define MAX_FINGERS		11
+#define MAX_FINGER_ORIENTATION	16384
+#define MAX_PKTS_PER_MSG	2
+
+#define KBD_BL_LEVEL_MIN	32U
+#define KBD_BL_LEVEL_MAX	255U
+#define KBD_BL_LEVEL_SCALE	1000000U
+#define KBD_BL_LEVEL_ADJ	\
+	((KBD_BL_LEVEL_MAX - KBD_BL_LEVEL_MIN) * KBD_BL_LEVEL_SCALE / 255U)
+
+#define EFI_BL_LEVEL_NAME	L"KeyboardBacklightLevel"
+#define EFI_BL_LEVEL_GUID	EFI_GUID(0xa076d2af, 0x9678, 0x4386, 0x8b, 0x58, 0x1f, 0xc8, 0xef, 0x04, 0x16, 0x19)
+
+#define APPLE_FLAG_FKEY		0x01
+
+#define SPI_RW_CHG_DELAY_US	100	/* from experimentation, in µs */
+
+#define SYNAPTICS_VENDOR_ID	0x06cb
+
+static unsigned int fnmode = 1;
+module_param(fnmode, uint, 0644);
+MODULE_PARM_DESC(fnmode, "Mode of Fn key on Apple keyboards (0 = disabled, [1] = fkeyslast, 2 = fkeysfirst)");
+
+static unsigned int fnremap;
+module_param(fnremap, uint, 0644);
+MODULE_PARM_DESC(fnremap, "Remap Fn key ([0] = no-remap; 1 = left-ctrl, 2 = left-shift, 3 = left-alt, 4 = left-meta, 6 = right-shift, 7 = right-alt, 8 = right-meta)");
+
+static bool iso_layout;
+module_param(iso_layout, bool, 0644);
+MODULE_PARM_DESC(iso_layout, "Enable/Disable hardcoded ISO-layout of the keyboard. ([0] = disabled, 1 = enabled)");
+
+static char touchpad_dimensions[40];
+module_param_string(touchpad_dimensions, touchpad_dimensions,
+		    sizeof(touchpad_dimensions), 0444);
+MODULE_PARM_DESC(touchpad_dimensions, "The pixel dimensions of the touchpad, as XxY+W+H .");
+
+/**
+ * struct keyboard_protocol - keyboard message.
+ * message.type = 0x0110, message.length = 0x000a
+ *
+ * @unknown1:		unknown
+ * @modifiers:		bit-set of modifier/control keys pressed
+ * @unknown2:		unknown
+ * @keys_pressed:	the (non-modifier) keys currently pressed
+ * @fn_pressed:		whether the fn key is currently pressed
+ * @crc16:		crc over the whole message struct (message header +
+ *			this struct) minus this @crc16 field
+ */
+struct keyboard_protocol {
+	u8			unknown1;
+	u8			modifiers;
+	u8			unknown2;
+	u8			keys_pressed[MAX_ROLLOVER];
+	u8			fn_pressed;
+	__le16			crc16;
+};
+
+/**
+ * struct tp_finger - single trackpad finger structure, le16-aligned
+ *
+ * @origin:		zero when switching track finger
+ * @abs_x:		absolute x coodinate
+ * @abs_y:		absolute y coodinate
+ * @rel_x:		relative x coodinate
+ * @rel_y:		relative y coodinate
+ * @tool_major:		tool area, major axis
+ * @tool_minor:		tool area, minor axis
+ * @orientation:	16384 when point, else 15 bit angle
+ * @touch_major:	touch area, major axis
+ * @touch_minor:	touch area, minor axis
+ * @unused:		zeros
+ * @pressure:		pressure on forcetouch touchpad
+ * @multi:		one finger: varies, more fingers: constant
+ * @crc16:		on last finger: crc over the whole message struct
+ *			(i.e. message header + this struct) minus the last
+ *			@crc16 field; unknown on all other fingers.
+ */
+struct tp_finger {
+	__le16 origin;
+	__le16 abs_x;
+	__le16 abs_y;
+	__le16 rel_x;
+	__le16 rel_y;
+	__le16 tool_major;
+	__le16 tool_minor;
+	__le16 orientation;
+	__le16 touch_major;
+	__le16 touch_minor;
+	__le16 unused[2];
+	__le16 pressure;
+	__le16 multi;
+	__le16 crc16;
+};
+
+/**
+ * struct touchpad_protocol - touchpad message.
+ * message.type = 0x0210
+ *
+ * @unknown1:		unknown
+ * @clicked:		1 if a button-click was detected, 0 otherwise
+ * @unknown2:		unknown
+ * @number_of_fingers:	the number of fingers being reported in @fingers
+ * @clicked2:		same as @clicked
+ * @unknown3:		unknown
+ * @fingers:		the data for each finger
+ */
+struct touchpad_protocol {
+	u8			unknown1[1];
+	u8			clicked;
+	u8			unknown2[28];
+	u8			number_of_fingers;
+	u8			clicked2;
+	u8			unknown3[16];
+	struct tp_finger	fingers[0];
+};
+
+/**
+ * struct command_protocol_tp_info - get touchpad info.
+ * message.type = 0x1020, message.length = 0x0000
+ *
+ * @crc16:		crc over the whole message struct (message header +
+ *			this struct) minus this @crc16 field
+ */
+struct command_protocol_tp_info {
+	__le16			crc16;
+};
+
+/**
+ * struct touchpad_info - touchpad info response.
+ * message.type = 0x1020, message.length = 0x006e
+ *
+ * @unknown1:		unknown
+ * @model_flags:	flags (vary by model number, but significance otherwise
+ *			unknown)
+ * @model_no:		the touchpad model number
+ * @unknown2:		unknown
+ * @crc16:		crc over the whole message struct (message header +
+ *			this struct) minus this @crc16 field
+ */
+struct touchpad_info_protocol {
+	u8			unknown1[105];
+	u8			model_flags;
+	u8			model_no;
+	u8			unknown2[3];
+	__le16			crc16;
+};
+
+/**
+ * struct command_protocol_mt_init - initialize multitouch.
+ * message.type = 0x0252, message.length = 0x0002
+ *
+ * @cmd:		value: 0x0102
+ * @crc16:		crc over the whole message struct (message header +
+ *			this struct) minus this @crc16 field
+ */
+struct command_protocol_mt_init {
+	__le16			cmd;
+	__le16			crc16;
+};
+
+/**
+ * struct command_protocol_capsl - toggle caps-lock led
+ * message.type = 0x0151, message.length = 0x0002
+ *
+ * @unknown:		value: 0x01 (length?)
+ * @led:		0 off, 2 on
+ * @crc16:		crc over the whole message struct (message header +
+ *			this struct) minus this @crc16 field
+ */
+struct command_protocol_capsl {
+	u8			unknown;
+	u8			led;
+	__le16			crc16;
+};
+
+/**
+ * struct command_protocol_bl - set keyboard backlight brightness
+ * message.type = 0xB051, message.length = 0x0006
+ *
+ * @const1:		value: 0x01B0
+ * @level:		the brightness level to set
+ * @const2:		value: 0x0001 (backlight off), 0x01F4 (backlight on)
+ * @crc16:		crc over the whole message struct (message header +
+ *			this struct) minus this @crc16 field
+ */
+struct command_protocol_bl {
+	__le16			const1;
+	__le16			level;
+	__le16			const2;
+	__le16			crc16;
+};
+
+/**
+ * struct message - a complete spi message.
+ *
+ * Each message begins with fixed header, followed by a message-type specific
+ * payload, and ends with a 16-bit crc. Because of the varying lengths of the
+ * payload, the crc is defined at the end of each payload struct, rather than
+ * in this struct.
+ *
+ * @type:	the message type
+ * @zero:	always 0
+ * @counter:	incremented on each message, rolls over after 255; there is a
+ *		separate counter for each message type.
+ * @rsp_buf_len:response buffer length (the exact nature of this field is quite
+ *		speculative). On a request/write this is often the same as
+ *		@length, though in some cases it has been seen to be much larger
+ *		(e.g. 0x400); on a response/read this the same as on the
+ *		request; for reads that are not responses it is 0.
+ * @length:	length of the remainder of the data in the whole message
+ *		structure (after re-assembly in case of being split over
+ *		multiple spi-packets), minus the trailing crc. The total size
+ *		of the message struct is therefore @length + 10.
+ */
+struct message {
+	__le16		type;
+	u8		zero;
+	u8		counter;
+	__le16		rsp_buf_len;
+	__le16		length;
+	union {
+		struct keyboard_protocol	keyboard;
+		struct touchpad_protocol	touchpad;
+		struct touchpad_info_protocol	tp_info;
+		struct command_protocol_tp_info	tp_info_command;
+		struct command_protocol_mt_init	init_mt_command;
+		struct command_protocol_capsl	capsl_command;
+		struct command_protocol_bl	bl_command;
+		u8				data[0];
+	};
+};
+
+/* type + zero + counter + rsp_buf_len + length */
+#define MSG_HEADER_SIZE		8
+
+/**
+ * struct spi_packet - a complete spi packet; always 256 bytes. This carries
+ * the (parts of the) message in the data. But note that this does not
+ * necessarily contain a complete message, as in some cases (e.g. many
+ * fingers pressed) the message is split over multiple packets (see the
+ * @offset, @remaining, and @length fields). In general the data parts in
+ * spi_packet's are concatenated until @remaining is 0, and the result is an
+ * message.
+ *
+ * @flags:	0x40 = write (to device), 0x20 = read (from device); note that
+ *		the response to a write still has 0x40.
+ * @device:	1 = keyboard, 2 = touchpad
+ * @offset:	specifies the offset of this packet's data in the complete
+ *		message; i.e. > 0 indicates this is a continuation packet (in
+ *		the second packet for a message split over multiple packets
+ *		this would then be the same as the @length in the first packet)
+ * @remaining:	number of message bytes remaining in subsequents packets (in
+ *		the first packet of a message split over two packets this would
+ *		then be the same as the @length in the second packet)
+ * @length:	length of the valid data in the @data in this packet
+ * @data:	all or part of a message
+ * @crc16:	crc over this whole structure minus this @crc16 field. This
+ *		covers just this packet, even on multi-packet messages (in
+ *		contrast to the crc in the message).
+ */
+struct spi_packet {
+	u8			flags;
+	u8			device;
+	__le16			offset;
+	__le16			remaining;
+	__le16			length;
+	u8			data[246];
+	__le16			crc16;
+};
+
+struct spi_settings {
+	u64	spi_cs_delay;		/* cs-to-clk delay in us */
+	u64	reset_a2r_usec;		/* active-to-receive delay? */
+	u64	reset_rec_usec;		/* ? (cur val: 10) */
+};
+
+/* this mimics struct drm_rect */
+struct applespi_tp_info {
+	int	x_min;
+	int	y_min;
+	int	x_max;
+	int	y_max;
+};
+
+struct applespi_data {
+	struct spi_device		*spi;
+	struct spi_settings		spi_settings;
+	struct input_dev		*keyboard_input_dev;
+	struct input_dev		*touchpad_input_dev;
+
+	u8				*tx_buffer;
+	u8				*tx_status;
+	u8				*rx_buffer;
+
+	u8				*msg_buf;
+	unsigned int			saved_msg_len;
+
+	struct applespi_tp_info		tp_info;
+
+	u8				last_keys_pressed[MAX_ROLLOVER];
+	u8				last_keys_fn_pressed[MAX_ROLLOVER];
+	u8				last_fn_pressed;
+	struct input_mt_pos		pos[MAX_FINGERS];
+	int				slots[MAX_FINGERS];
+	int				gpe;
+	acpi_handle			sien;
+	acpi_handle			sist;
+
+	struct spi_transfer		dl_t;
+	struct spi_transfer		rd_t;
+	struct spi_message		rd_m;
+
+	struct spi_transfer		ww_t;
+	struct spi_transfer		wd_t;
+	struct spi_transfer		wr_t;
+	struct spi_transfer		st_t;
+	struct spi_message		wr_m;
+
+	bool				want_tp_info_cmd;
+	bool				want_mt_init_cmd;
+	bool				want_cl_led_on;
+	bool				have_cl_led_on;
+	unsigned int			want_bl_level;
+	unsigned int			have_bl_level;
+	unsigned int			cmd_msg_cntr;
+	/* lock to protect the above parameters and flags below */
+	spinlock_t			cmd_msg_lock;
+	bool				cmd_msg_queued;
+	enum applespi_evt_type		cmd_evt_type;
+
+	struct led_classdev		backlight_info;
+
+	bool				suspended;
+	bool				drain;
+	wait_queue_head_t		drain_complete;
+	bool				read_active;
+	bool				write_active;
+
+	struct work_struct		work;
+	struct touchpad_info_protocol	rcvd_tp_info;
+
+	struct dentry			*debugfs_root;
+	bool				debug_tp_dim;
+	char				tp_dim_val[40];
+	int				tp_dim_min_x;
+	int				tp_dim_max_x;
+	int				tp_dim_min_y;
+	int				tp_dim_max_y;
+};
+
+static const unsigned char applespi_scancodes[] = {
+	0, 0, 0, 0,
+	KEY_A, KEY_B, KEY_C, KEY_D, KEY_E, KEY_F, KEY_G, KEY_H, KEY_I, KEY_J,
+	KEY_K, KEY_L, KEY_M, KEY_N, KEY_O, KEY_P, KEY_Q, KEY_R, KEY_S, KEY_T,
+	KEY_U, KEY_V, KEY_W, KEY_X, KEY_Y, KEY_Z,
+	KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7, KEY_8, KEY_9, KEY_0,
+	KEY_ENTER, KEY_ESC, KEY_BACKSPACE, KEY_TAB, KEY_SPACE, KEY_MINUS,
+	KEY_EQUAL, KEY_LEFTBRACE, KEY_RIGHTBRACE, KEY_BACKSLASH, 0,
+	KEY_SEMICOLON, KEY_APOSTROPHE, KEY_GRAVE, KEY_COMMA, KEY_DOT, KEY_SLASH,
+	KEY_CAPSLOCK,
+	KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7, KEY_F8, KEY_F9,
+	KEY_F10, KEY_F11, KEY_F12, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	KEY_RIGHT, KEY_LEFT, KEY_DOWN, KEY_UP,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_102ND,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_RO, 0, KEY_YEN, 0, 0, 0, 0, 0,
+	0, KEY_KATAKANAHIRAGANA, KEY_MUHENKAN
+};
+
+/*
+ * This must have exactly as many entries as there are bits in
+ * struct keyboard_protocol.modifiers .
+ */
+static const unsigned char applespi_controlcodes[] = {
+	KEY_LEFTCTRL,
+	KEY_LEFTSHIFT,
+	KEY_LEFTALT,
+	KEY_LEFTMETA,
+	0,
+	KEY_RIGHTSHIFT,
+	KEY_RIGHTALT,
+	KEY_RIGHTMETA
+};
+
+struct applespi_key_translation {
+	u16 from;
+	u16 to;
+	u8 flags;
+};
+
+static const struct applespi_key_translation applespi_fn_codes[] = {
+	{ KEY_BACKSPACE, KEY_DELETE },
+	{ KEY_ENTER,	KEY_INSERT },
+	{ KEY_F1,	KEY_BRIGHTNESSDOWN,	APPLE_FLAG_FKEY },
+	{ KEY_F2,	KEY_BRIGHTNESSUP,	APPLE_FLAG_FKEY },
+	{ KEY_F3,	KEY_SCALE,		APPLE_FLAG_FKEY },
+	{ KEY_F4,	KEY_DASHBOARD,		APPLE_FLAG_FKEY },
+	{ KEY_F5,	KEY_KBDILLUMDOWN,	APPLE_FLAG_FKEY },
+	{ KEY_F6,	KEY_KBDILLUMUP,		APPLE_FLAG_FKEY },
+	{ KEY_F7,	KEY_PREVIOUSSONG,	APPLE_FLAG_FKEY },
+	{ KEY_F8,	KEY_PLAYPAUSE,		APPLE_FLAG_FKEY },
+	{ KEY_F9,	KEY_NEXTSONG,		APPLE_FLAG_FKEY },
+	{ KEY_F10,	KEY_MUTE,		APPLE_FLAG_FKEY },
+	{ KEY_F11,	KEY_VOLUMEDOWN,		APPLE_FLAG_FKEY },
+	{ KEY_F12,	KEY_VOLUMEUP,		APPLE_FLAG_FKEY },
+	{ KEY_RIGHT,	KEY_END },
+	{ KEY_LEFT,	KEY_HOME },
+	{ KEY_DOWN,	KEY_PAGEDOWN },
+	{ KEY_UP,	KEY_PAGEUP },
+	{ }
+};
+
+static const struct applespi_key_translation apple_iso_keyboard[] = {
+	{ KEY_GRAVE,	KEY_102ND },
+	{ KEY_102ND,	KEY_GRAVE },
+	{ }
+};
+
+struct applespi_tp_model_info {
+	u16			model;
+	struct applespi_tp_info	tp_info;
+};
+
+static const struct applespi_tp_model_info applespi_tp_models[] = {
+	{
+		.model = 0x04,	/* MB8 MB9 MB10 */
+		.tp_info = { -5087, -182, 5579, 6089 },
+	},
+	{
+		.model = 0x05,	/* MBP13,1 MBP13,2 MBP14,1 MBP14,2 */
+		.tp_info = { -6243, -170, 6749, 7685 },
+	},
+	{
+		.model = 0x06,	/* MBP13,3 MBP14,3 */
+		.tp_info = { -7456, -163, 7976, 9283 },
+	},
+	{}
+};
+
+typedef void (*applespi_trace_fun)(enum applespi_evt_type,
+				   enum applespi_pkt_type, u8 *, size_t);
+
+static applespi_trace_fun applespi_get_trace_fun(enum applespi_evt_type type)
+{
+	switch (type) {
+	case ET_CMD_TP_INI:
+		return trace_applespi_tp_ini_cmd;
+	case ET_CMD_BL:
+		return trace_applespi_backlight_cmd;
+	case ET_CMD_CL:
+		return trace_applespi_caps_lock_cmd;
+	case ET_RD_KEYB:
+		return trace_applespi_keyboard_data;
+	case ET_RD_TPAD:
+		return trace_applespi_touchpad_data;
+	case ET_RD_UNKN:
+		return trace_applespi_unknown_data;
+	default:
+		WARN_ONCE(1, "Unknown msg type %d", type);
+		return trace_applespi_unknown_data;
+	}
+}
+
+static void applespi_setup_read_txfrs(struct applespi_data *applespi)
+{
+	struct spi_message *msg = &applespi->rd_m;
+	struct spi_transfer *dl_t = &applespi->dl_t;
+	struct spi_transfer *rd_t = &applespi->rd_t;
+
+	memset(dl_t, 0, sizeof(*dl_t));
+	memset(rd_t, 0, sizeof(*rd_t));
+
+	dl_t->delay_usecs = applespi->spi_settings.spi_cs_delay;
+
+	rd_t->rx_buf = applespi->rx_buffer;
+	rd_t->len = APPLESPI_PACKET_SIZE;
+
+	spi_message_init(msg);
+	spi_message_add_tail(dl_t, msg);
+	spi_message_add_tail(rd_t, msg);
+}
+
+static void applespi_setup_write_txfrs(struct applespi_data *applespi)
+{
+	struct spi_message *msg = &applespi->wr_m;
+	struct spi_transfer *wt_t = &applespi->ww_t;
+	struct spi_transfer *dl_t = &applespi->wd_t;
+	struct spi_transfer *wr_t = &applespi->wr_t;
+	struct spi_transfer *st_t = &applespi->st_t;
+
+	memset(wt_t, 0, sizeof(*wt_t));
+	memset(dl_t, 0, sizeof(*dl_t));
+	memset(wr_t, 0, sizeof(*wr_t));
+	memset(st_t, 0, sizeof(*st_t));
+
+	/*
+	 * All we need here is a delay at the beginning of the message before
+	 * asserting cs. But the current spi API doesn't support this, so we
+	 * end up with an extra unnecessary (but harmless) cs assertion and
+	 * deassertion.
+	 */
+	wt_t->delay_usecs = SPI_RW_CHG_DELAY_US;
+	wt_t->cs_change = 1;
+
+	dl_t->delay_usecs = applespi->spi_settings.spi_cs_delay;
+
+	wr_t->tx_buf = applespi->tx_buffer;
+	wr_t->len = APPLESPI_PACKET_SIZE;
+	wr_t->delay_usecs = SPI_RW_CHG_DELAY_US;
+
+	st_t->rx_buf = applespi->tx_status;
+	st_t->len = APPLESPI_STATUS_SIZE;
+
+	spi_message_init(msg);
+	spi_message_add_tail(wt_t, msg);
+	spi_message_add_tail(dl_t, msg);
+	spi_message_add_tail(wr_t, msg);
+	spi_message_add_tail(st_t, msg);
+}
+
+static int applespi_async(struct applespi_data *applespi,
+			  struct spi_message *message, void (*complete)(void *))
+{
+	message->complete = complete;
+	message->context = applespi;
+
+	return spi_async(applespi->spi, message);
+}
+
+static inline bool applespi_check_write_status(struct applespi_data *applespi,
+					       int sts)
+{
+	static u8 status_ok[] = { 0xac, 0x27, 0x68, 0xd5 };
+
+	if (sts < 0) {
+		dev_warn(&applespi->spi->dev, "Error writing to device: %d\n",
+			 sts);
+		return false;
+	}
+
+	if (memcmp(applespi->tx_status, status_ok, APPLESPI_STATUS_SIZE)) {
+		dev_warn(&applespi->spi->dev, "Error writing to device: %*ph\n",
+			 APPLESPI_STATUS_SIZE, applespi->tx_status);
+		return false;
+	}
+
+	return true;
+}
+
+static int applespi_get_spi_settings(struct applespi_data *applespi)
+{
+	struct acpi_device *adev = ACPI_COMPANION(&applespi->spi->dev);
+	const union acpi_object *o;
+	struct spi_settings *settings = &applespi->spi_settings;
+
+	if (!acpi_dev_get_property(adev, "spiCSDelay", ACPI_TYPE_BUFFER, &o))
+		settings->spi_cs_delay = *(u64 *)o->buffer.pointer;
+	else
+		dev_warn(&applespi->spi->dev,
+			 "Property spiCSDelay not found\n");
+
+	if (!acpi_dev_get_property(adev, "resetA2RUsec", ACPI_TYPE_BUFFER, &o))
+		settings->reset_a2r_usec = *(u64 *)o->buffer.pointer;
+	else
+		dev_warn(&applespi->spi->dev,
+			 "Property resetA2RUsec not found\n");
+
+	if (!acpi_dev_get_property(adev, "resetRecUsec", ACPI_TYPE_BUFFER, &o))
+		settings->reset_rec_usec = *(u64 *)o->buffer.pointer;
+	else
+		dev_warn(&applespi->spi->dev,
+			 "Property resetRecUsec not found\n");
+
+	dev_dbg(&applespi->spi->dev,
+		"SPI settings: spi_cs_delay=%llu reset_a2r_usec=%llu reset_rec_usec=%llu\n",
+		settings->spi_cs_delay, settings->reset_a2r_usec,
+		settings->reset_rec_usec);
+
+	return 0;
+}
+
+static int applespi_setup_spi(struct applespi_data *applespi)
+{
+	int sts;
+
+	sts = applespi_get_spi_settings(applespi);
+	if (sts)
+		return sts;
+
+	spin_lock_init(&applespi->cmd_msg_lock);
+	init_waitqueue_head(&applespi->drain_complete);
+
+	return 0;
+}
+
+static int applespi_enable_spi(struct applespi_data *applespi)
+{
+	acpi_status acpi_sts;
+	unsigned long long spi_status;
+
+	/* check if SPI is already enabled, so we can skip the delay below */
+	acpi_sts = acpi_evaluate_integer(applespi->sist, NULL, NULL,
+					 &spi_status);
+	if (ACPI_SUCCESS(acpi_sts) && spi_status)
+		return 0;
+
+	/* SIEN(1) will enable SPI communication */
+	acpi_sts = acpi_execute_simple_method(applespi->sien, NULL, 1);
+	if (ACPI_FAILURE(acpi_sts)) {
+		dev_err(&applespi->spi->dev, "SIEN failed: %s\n",
+			acpi_format_exception(acpi_sts));
+		return -ENODEV;
+	}
+
+	/*
+	 * Allow the SPI interface to come up before returning. Without this
+	 * delay, the SPI commands to enable multitouch mode may not reach
+	 * the trackpad controller, causing pointer movement to break upon
+	 * resume from sleep.
+	 */
+	msleep(50);
+
+	return 0;
+}
+
+static int applespi_send_cmd_msg(struct applespi_data *applespi);
+
+static void applespi_msg_complete(struct applespi_data *applespi,
+				  bool is_write_msg, bool is_read_compl)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&applespi->cmd_msg_lock, flags);
+
+	if (is_read_compl)
+		applespi->read_active = false;
+	if (is_write_msg)
+		applespi->write_active = false;
+
+	if (applespi->drain && !applespi->write_active)
+		wake_up_all(&applespi->drain_complete);
+
+	if (is_write_msg) {
+		applespi->cmd_msg_queued = false;
+		applespi_send_cmd_msg(applespi);
+	}
+
+	spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);
+}
+
+static void applespi_async_write_complete(void *context)
+{
+	struct applespi_data *applespi = context;
+	enum applespi_evt_type evt_type = applespi->cmd_evt_type;
+
+	applespi_get_trace_fun(evt_type)(evt_type, PT_WRITE,
+					 applespi->tx_buffer,
+					 APPLESPI_PACKET_SIZE);
+	applespi_get_trace_fun(evt_type)(evt_type, PT_STATUS,
+					 applespi->tx_status,
+					 APPLESPI_STATUS_SIZE);
+
+	if (!applespi_check_write_status(applespi, applespi->wr_m.status)) {
+		/*
+		 * If we got an error, we presumably won't get the expected
+		 * response message either.
+		 */
+		applespi_msg_complete(applespi, true, false);
+	}
+}
+
+static int applespi_send_cmd_msg(struct applespi_data *applespi)
+{
+	u16 crc;
+	int sts;
+	struct spi_packet *packet = (struct spi_packet *)applespi->tx_buffer;
+	struct message *message = (struct message *)packet->data;
+	u16 msg_len;
+	u8 device;
+
+	/* check if draining */
+	if (applespi->drain)
+		return 0;
+
+	/* check whether send is in progress */
+	if (applespi->cmd_msg_queued)
+		return 0;
+
+	/* set up packet */
+	memset(packet, 0, APPLESPI_PACKET_SIZE);
+
+	/* are we processing init commands? */
+	if (applespi->want_tp_info_cmd) {
+		applespi->want_tp_info_cmd = false;
+		applespi->want_mt_init_cmd = true;
+		applespi->cmd_evt_type = ET_CMD_TP_INI;
+
+		/* build init command */
+		device = PACKET_DEV_INFO;
+
+		message->type = cpu_to_le16(0x1020);
+		msg_len = sizeof(message->tp_info_command);
+
+		message->zero = 0x02;
+		message->rsp_buf_len = cpu_to_le16(0x0200);
+
+	} else if (applespi->want_mt_init_cmd) {
+		applespi->want_mt_init_cmd = false;
+		applespi->cmd_evt_type = ET_CMD_TP_INI;
+
+		/* build init command */
+		device = PACKET_DEV_TPAD;
+
+		message->type = cpu_to_le16(0x0252);
+		msg_len = sizeof(message->init_mt_command);
+
+		message->init_mt_command.cmd = cpu_to_le16(0x0102);
+
+	/* do we need caps-lock command? */
+	} else if (applespi->want_cl_led_on != applespi->have_cl_led_on) {
+		applespi->have_cl_led_on = applespi->want_cl_led_on;
+		applespi->cmd_evt_type = ET_CMD_CL;
+
+		/* build led command */
+		device = PACKET_DEV_KEYB;
+
+		message->type = cpu_to_le16(0x0151);
+		msg_len = sizeof(message->capsl_command);
+
+		message->capsl_command.unknown = 0x01;
+		message->capsl_command.led = applespi->have_cl_led_on ? 2 : 0;
+
+	/* do we need backlight command? */
+	} else if (applespi->want_bl_level != applespi->have_bl_level) {
+		applespi->have_bl_level = applespi->want_bl_level;
+		applespi->cmd_evt_type = ET_CMD_BL;
+
+		/* build command buffer */
+		device = PACKET_DEV_KEYB;
+
+		message->type = cpu_to_le16(0xB051);
+		msg_len = sizeof(message->bl_command);
+
+		message->bl_command.const1 = cpu_to_le16(0x01B0);
+		message->bl_command.level =
+				cpu_to_le16(applespi->have_bl_level);
+
+		if (applespi->have_bl_level > 0)
+			message->bl_command.const2 = cpu_to_le16(0x01F4);
+		else
+			message->bl_command.const2 = cpu_to_le16(0x0001);
+
+	/* everything's up-to-date */
+	} else {
+		return 0;
+	}
+
+	/* finalize packet */
+	packet->flags = PACKET_TYPE_WRITE;
+	packet->device = device;
+	packet->length = cpu_to_le16(MSG_HEADER_SIZE + msg_len);
+
+	message->counter = applespi->cmd_msg_cntr++ % (U8_MAX + 1);
+
+	message->length = cpu_to_le16(msg_len - 2);
+	if (!message->rsp_buf_len)
+		message->rsp_buf_len = message->length;
+
+	crc = crc16(0, (u8 *)message, le16_to_cpu(packet->length) - 2);
+	put_unaligned_le16(crc, &message->data[msg_len - 2]);
+
+	crc = crc16(0, (u8 *)packet, sizeof(*packet) - 2);
+	packet->crc16 = cpu_to_le16(crc);
+
+	/* send command */
+	sts = applespi_async(applespi, &applespi->wr_m,
+			     applespi_async_write_complete);
+	if (sts) {
+		dev_warn(&applespi->spi->dev,
+			 "Error queueing async write to device: %d\n", sts);
+		return sts;
+	}
+
+	applespi->cmd_msg_queued = true;
+	applespi->write_active = true;
+
+	return 0;
+}
+
+static void applespi_init(struct applespi_data *applespi, bool is_resume)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&applespi->cmd_msg_lock, flags);
+
+	if (is_resume)
+		applespi->want_mt_init_cmd = true;
+	else
+		applespi->want_tp_info_cmd = true;
+	applespi_send_cmd_msg(applespi);
+
+	spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);
+}
+
+static int applespi_set_capsl_led(struct applespi_data *applespi,
+				  bool capslock_on)
+{
+	unsigned long flags;
+	int sts;
+
+	spin_lock_irqsave(&applespi->cmd_msg_lock, flags);
+
+	applespi->want_cl_led_on = capslock_on;
+	sts = applespi_send_cmd_msg(applespi);
+
+	spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);
+
+	return sts;
+}
+
+static void applespi_set_bl_level(struct led_classdev *led_cdev,
+				  enum led_brightness value)
+{
+	struct applespi_data *applespi =
+		container_of(led_cdev, struct applespi_data, backlight_info);
+	unsigned long flags;
+
+	spin_lock_irqsave(&applespi->cmd_msg_lock, flags);
+
+	if (value == 0) {
+		applespi->want_bl_level = value;
+	} else {
+		/*
+		 * The backlight does not turn on till level 32, so we scale
+		 * the range here so that from a user's perspective it turns
+		 * on at 1.
+		 */
+		applespi->want_bl_level =
+			((value * KBD_BL_LEVEL_ADJ) / KBD_BL_LEVEL_SCALE +
+			 KBD_BL_LEVEL_MIN);
+	}
+
+	applespi_send_cmd_msg(applespi);
+
+	spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);
+}
+
+static int applespi_event(struct input_dev *dev, unsigned int type,
+			  unsigned int code, int value)
+{
+	struct applespi_data *applespi = input_get_drvdata(dev);
+
+	switch (type) {
+	case EV_LED:
+		applespi_set_capsl_led(applespi, !!test_bit(LED_CAPSL, dev->led));
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+/* lifted from the BCM5974 driver and renamed from raw2int */
+/* convert 16-bit little endian to signed integer */
+static inline int le16_to_int(__le16 x)
+{
+	return (signed short)le16_to_cpu(x);
+}
+
+static void applespi_debug_update_dimensions(struct applespi_data *applespi,
+					     const struct tp_finger *f)
+{
+	applespi->tp_dim_min_x = min_t(int, applespi->tp_dim_min_x, f->abs_x);
+	applespi->tp_dim_max_x = max_t(int, applespi->tp_dim_max_x, f->abs_x);
+	applespi->tp_dim_min_y = min_t(int, applespi->tp_dim_min_y, f->abs_y);
+	applespi->tp_dim_max_y = max_t(int, applespi->tp_dim_max_y, f->abs_y);
+}
+
+static int applespi_tp_dim_open(struct inode *inode, struct file *file)
+{
+	struct applespi_data *applespi = inode->i_private;
+
+	file->private_data = applespi;
+
+	snprintf(applespi->tp_dim_val, sizeof(applespi->tp_dim_val),
+		 "0x%.4x %dx%d+%u+%u\n",
+		 applespi->touchpad_input_dev->id.product,
+		 applespi->tp_dim_min_x, applespi->tp_dim_min_y,
+		 applespi->tp_dim_max_x - applespi->tp_dim_min_x,
+		 applespi->tp_dim_max_y - applespi->tp_dim_min_y);
+
+	return nonseekable_open(inode, file);
+}
+
+static ssize_t applespi_tp_dim_read(struct file *file, char __user *buf,
+				    size_t len, loff_t *off)
+{
+	struct applespi_data *applespi = file->private_data;
+
+	return simple_read_from_buffer(buf, len, off, applespi->tp_dim_val,
+				       strlen(applespi->tp_dim_val));
+}
+
+static const struct file_operations applespi_tp_dim_fops = {
+	.owner = THIS_MODULE,
+	.open = applespi_tp_dim_open,
+	.read = applespi_tp_dim_read,
+	.llseek = no_llseek,
+};
+
+static void report_finger_data(struct input_dev *input, int slot,
+			       const struct input_mt_pos *pos,
+			       const struct tp_finger *f)
+{
+	input_mt_slot(input, slot);
+	input_mt_report_slot_state(input, MT_TOOL_FINGER, true);
+
+	input_report_abs(input, ABS_MT_TOUCH_MAJOR,
+			 le16_to_int(f->touch_major) << 1);
+	input_report_abs(input, ABS_MT_TOUCH_MINOR,
+			 le16_to_int(f->touch_minor) << 1);
+	input_report_abs(input, ABS_MT_WIDTH_MAJOR,
+			 le16_to_int(f->tool_major) << 1);
+	input_report_abs(input, ABS_MT_WIDTH_MINOR,
+			 le16_to_int(f->tool_minor) << 1);
+	input_report_abs(input, ABS_MT_ORIENTATION,
+			 MAX_FINGER_ORIENTATION - le16_to_int(f->orientation));
+	input_report_abs(input, ABS_MT_POSITION_X, pos->x);
+	input_report_abs(input, ABS_MT_POSITION_Y, pos->y);
+}
+
+static void report_tp_state(struct applespi_data *applespi,
+			    struct touchpad_protocol *t)
+{
+	const struct tp_finger *f;
+	struct input_dev *input;
+	const struct applespi_tp_info *tp_info = &applespi->tp_info;
+	int i, n;
+
+	/* touchpad_input_dev is set async in worker */
+	input = smp_load_acquire(&applespi->touchpad_input_dev);
+	if (!input)
+		return;	/* touchpad isn't initialized yet */
+
+	n = 0;
+
+	for (i = 0; i < t->number_of_fingers; i++) {
+		f = &t->fingers[i];
+		if (le16_to_int(f->touch_major) == 0)
+			continue;
+		applespi->pos[n].x = le16_to_int(f->abs_x);
+		applespi->pos[n].y = tp_info->y_min + tp_info->y_max -
+				     le16_to_int(f->abs_y);
+		n++;
+
+		if (applespi->debug_tp_dim)
+			applespi_debug_update_dimensions(applespi, f);
+	}
+
+	input_mt_assign_slots(input, applespi->slots, applespi->pos, n, 0);
+
+	for (i = 0; i < n; i++)
+		report_finger_data(input, applespi->slots[i],
+				   &applespi->pos[i], &t->fingers[i]);
+
+	input_mt_sync_frame(input);
+	input_report_key(input, BTN_LEFT, t->clicked);
+
+	input_sync(input);
+}
+
+static const struct applespi_key_translation *
+applespi_find_translation(const struct applespi_key_translation *table, u16 key)
+{
+	const struct applespi_key_translation *trans;
+
+	for (trans = table; trans->from; trans++)
+		if (trans->from == key)
+			return trans;
+
+	return NULL;
+}
+
+static unsigned int applespi_translate_fn_key(unsigned int key, int fn_pressed)
+{
+	const struct applespi_key_translation *trans;
+	int do_translate;
+
+	trans = applespi_find_translation(applespi_fn_codes, key);
+	if (trans) {
+		if (trans->flags & APPLE_FLAG_FKEY)
+			do_translate = (fnmode == 2 && fn_pressed) ||
+				       (fnmode == 1 && !fn_pressed);
+		else
+			do_translate = fn_pressed;
+
+		if (do_translate)
+			key = trans->to;
+	}
+
+	return key;
+}
+
+static unsigned int applespi_translate_iso_layout(unsigned int key)
+{
+	const struct applespi_key_translation *trans;
+
+	trans = applespi_find_translation(apple_iso_keyboard, key);
+	if (trans)
+		key = trans->to;
+
+	return key;
+}
+
+static unsigned int applespi_code_to_key(u8 code, int fn_pressed)
+{
+	unsigned int key = applespi_scancodes[code];
+
+	if (fnmode)
+		key = applespi_translate_fn_key(key, fn_pressed);
+	if (iso_layout)
+		key = applespi_translate_iso_layout(key);
+	return key;
+}
+
+static void
+applespi_remap_fn_key(struct keyboard_protocol *keyboard_protocol)
+{
+	unsigned char tmp;
+	u8 bit = BIT((fnremap - 1) & 0x07);
+
+	if (!fnremap || fnremap > ARRAY_SIZE(applespi_controlcodes) ||
+	    !applespi_controlcodes[fnremap - 1])
+		return;
+
+	tmp = keyboard_protocol->fn_pressed;
+	keyboard_protocol->fn_pressed = !!(keyboard_protocol->modifiers & bit);
+	if (tmp)
+		keyboard_protocol->modifiers |= bit;
+	else
+		keyboard_protocol->modifiers &= ~bit;
+}
+
+static void
+applespi_handle_keyboard_event(struct applespi_data *applespi,
+			       struct keyboard_protocol *keyboard_protocol)
+{
+	unsigned int key;
+	int i;
+
+	compiletime_assert(ARRAY_SIZE(applespi_controlcodes) ==
+			   sizeof_field(struct keyboard_protocol, modifiers) * 8,
+			   "applespi_controlcodes has wrong number of entries");
+
+	/* check for rollover overflow, which is signalled by all keys == 1 */
+	if (!memchr_inv(keyboard_protocol->keys_pressed, 1, MAX_ROLLOVER))
+		return;
+
+	/* remap fn key if desired */
+	applespi_remap_fn_key(keyboard_protocol);
+
+	/* check released keys */
+	for (i = 0; i < MAX_ROLLOVER; i++) {
+		if (memchr(keyboard_protocol->keys_pressed,
+			   applespi->last_keys_pressed[i], MAX_ROLLOVER))
+			continue;	/* key is still pressed */
+
+		key = applespi_code_to_key(applespi->last_keys_pressed[i],
+					   applespi->last_keys_fn_pressed[i]);
+		input_report_key(applespi->keyboard_input_dev, key, 0);
+		applespi->last_keys_fn_pressed[i] = 0;
+	}
+
+	/* check pressed keys */
+	for (i = 0; i < MAX_ROLLOVER; i++) {
+		if (keyboard_protocol->keys_pressed[i] <
+				ARRAY_SIZE(applespi_scancodes) &&
+		    keyboard_protocol->keys_pressed[i] > 0) {
+			key = applespi_code_to_key(
+					keyboard_protocol->keys_pressed[i],
+					keyboard_protocol->fn_pressed);
+			input_report_key(applespi->keyboard_input_dev, key, 1);
+			applespi->last_keys_fn_pressed[i] =
+					keyboard_protocol->fn_pressed;
+		}
+	}
+
+	/* check control keys */
+	for (i = 0; i < ARRAY_SIZE(applespi_controlcodes); i++) {
+		if (keyboard_protocol->modifiers & BIT(i))
+			input_report_key(applespi->keyboard_input_dev,
+					 applespi_controlcodes[i], 1);
+		else
+			input_report_key(applespi->keyboard_input_dev,
+					 applespi_controlcodes[i], 0);
+	}
+
+	/* check function key */
+	if (keyboard_protocol->fn_pressed && !applespi->last_fn_pressed)
+		input_report_key(applespi->keyboard_input_dev, KEY_FN, 1);
+	else if (!keyboard_protocol->fn_pressed && applespi->last_fn_pressed)
+		input_report_key(applespi->keyboard_input_dev, KEY_FN, 0);
+	applespi->last_fn_pressed = keyboard_protocol->fn_pressed;
+
+	/* done */
+	input_sync(applespi->keyboard_input_dev);
+	memcpy(&applespi->last_keys_pressed, keyboard_protocol->keys_pressed,
+	       sizeof(applespi->last_keys_pressed));
+}
+
+static const struct applespi_tp_info *applespi_find_touchpad_info(u8 model)
+{
+	const struct applespi_tp_model_info *info;
+
+	for (info = applespi_tp_models; info->model; info++) {
+		if (info->model == model)
+			return &info->tp_info;
+	}
+
+	return NULL;
+}
+
+static int
+applespi_register_touchpad_device(struct applespi_data *applespi,
+				  struct touchpad_info_protocol *rcvd_tp_info)
+{
+	const struct applespi_tp_info *tp_info;
+	struct input_dev *touchpad_input_dev;
+	int sts;
+
+	/* set up touchpad dimensions */
+	tp_info = applespi_find_touchpad_info(rcvd_tp_info->model_no);
+	if (!tp_info) {
+		dev_warn(&applespi->spi->dev,
+			 "Unknown touchpad model %x - falling back to MB8 touchpad\n",
+			 rcvd_tp_info->model_no);
+		tp_info = &applespi_tp_models[0].tp_info;
+	}
+
+	applespi->tp_info = *tp_info;
+
+	if (touchpad_dimensions[0]) {
+		int x, y, w, h;
+
+		sts = sscanf(touchpad_dimensions, "%dx%d+%u+%u", &x, &y, &w, &h);
+		if (sts == 4) {
+			dev_info(&applespi->spi->dev,
+				 "Overriding touchpad dimensions from module param\n");
+			applespi->tp_info.x_min = x;
+			applespi->tp_info.y_min = y;
+			applespi->tp_info.x_max = x + w;
+			applespi->tp_info.y_max = y + h;
+		} else {
+			dev_warn(&applespi->spi->dev,
+				 "Invalid touchpad dimensions '%s': must be in the form XxY+W+H\n",
+				 touchpad_dimensions);
+			touchpad_dimensions[0] = '\0';
+		}
+	}
+	if (!touchpad_dimensions[0]) {
+		snprintf(touchpad_dimensions, sizeof(touchpad_dimensions),
+			 "%dx%d+%u+%u",
+			 applespi->tp_info.x_min,
+			 applespi->tp_info.y_min,
+			 applespi->tp_info.x_max - applespi->tp_info.x_min,
+			 applespi->tp_info.y_max - applespi->tp_info.y_min);
+	}
+
+	/* create touchpad input device */
+	touchpad_input_dev = devm_input_allocate_device(&applespi->spi->dev);
+	if (!touchpad_input_dev) {
+		dev_err(&applespi->spi->dev,
+			"Failed to allocate touchpad input device\n");
+		return -ENOMEM;
+	}
+
+	touchpad_input_dev->name = "Apple SPI Touchpad";
+	touchpad_input_dev->phys = "applespi/input1";
+	touchpad_input_dev->dev.parent = &applespi->spi->dev;
+	touchpad_input_dev->id.bustype = BUS_SPI;
+	touchpad_input_dev->id.vendor = SYNAPTICS_VENDOR_ID;
+	touchpad_input_dev->id.product =
+			rcvd_tp_info->model_no << 8 | rcvd_tp_info->model_flags;
+
+	/* basic properties */
+	input_set_capability(touchpad_input_dev, EV_REL, REL_X);
+	input_set_capability(touchpad_input_dev, EV_REL, REL_Y);
+
+	__set_bit(INPUT_PROP_POINTER, touchpad_input_dev->propbit);
+	__set_bit(INPUT_PROP_BUTTONPAD, touchpad_input_dev->propbit);
+
+	/* finger touch area */
+	input_set_abs_params(touchpad_input_dev, ABS_MT_TOUCH_MAJOR,
+			     0, 5000, 0, 0);
+	input_set_abs_params(touchpad_input_dev, ABS_MT_TOUCH_MINOR,
+			     0, 5000, 0, 0);
+
+	/* finger approach area */
+	input_set_abs_params(touchpad_input_dev, ABS_MT_WIDTH_MAJOR,
+			     0, 5000, 0, 0);
+	input_set_abs_params(touchpad_input_dev, ABS_MT_WIDTH_MINOR,
+			     0, 5000, 0, 0);
+
+	/* finger orientation */
+	input_set_abs_params(touchpad_input_dev, ABS_MT_ORIENTATION,
+			     -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION,
+			     0, 0);
+
+	/* finger position */
+	input_set_abs_params(touchpad_input_dev, ABS_MT_POSITION_X,
+			     applespi->tp_info.x_min, applespi->tp_info.x_max,
+			     0, 0);
+	input_set_abs_params(touchpad_input_dev, ABS_MT_POSITION_Y,
+			     applespi->tp_info.y_min, applespi->tp_info.y_max,
+			     0, 0);
+
+	/* touchpad button */
+	input_set_capability(touchpad_input_dev, EV_KEY, BTN_LEFT);
+
+	/* multitouch */
+	sts = input_mt_init_slots(touchpad_input_dev, MAX_FINGERS,
+				  INPUT_MT_POINTER | INPUT_MT_DROP_UNUSED |
+					INPUT_MT_TRACK);
+	if (sts) {
+		dev_err(&applespi->spi->dev,
+			"failed to initialize slots: %d", sts);
+		return sts;
+	}
+
+	/* register input device */
+	sts = input_register_device(touchpad_input_dev);
+	if (sts) {
+		dev_err(&applespi->spi->dev,
+			"Unable to register touchpad input device (%d)\n", sts);
+		return sts;
+	}
+
+	/* touchpad_input_dev is read async in spi callback */
+	smp_store_release(&applespi->touchpad_input_dev, touchpad_input_dev);
+
+	return 0;
+}
+
+static void applespi_worker(struct work_struct *work)
+{
+	struct applespi_data *applespi =
+		container_of(work, struct applespi_data, work);
+
+	applespi_register_touchpad_device(applespi, &applespi->rcvd_tp_info);
+}
+
+static void applespi_handle_cmd_response(struct applespi_data *applespi,
+					 struct spi_packet *packet,
+					 struct message *message)
+{
+	if (packet->device == PACKET_DEV_INFO &&
+	    le16_to_cpu(message->type) == 0x1020) {
+		/*
+		 * We're not allowed to sleep here, but registering an input
+		 * device can sleep.
+		 */
+		applespi->rcvd_tp_info = message->tp_info;
+		schedule_work(&applespi->work);
+		return;
+	}
+
+	if (le16_to_cpu(message->length) != 0x0000) {
+		dev_warn_ratelimited(&applespi->spi->dev,
+				     "Received unexpected write response: length=%x\n",
+				     le16_to_cpu(message->length));
+		return;
+	}
+
+	if (packet->device == PACKET_DEV_TPAD &&
+	    le16_to_cpu(message->type) == 0x0252 &&
+	    le16_to_cpu(message->rsp_buf_len) == 0x0002)
+		dev_info(&applespi->spi->dev, "modeswitch done.\n");
+}
+
+static bool applespi_verify_crc(struct applespi_data *applespi, u8 *buffer,
+				size_t buflen)
+{
+	u16 crc;
+
+	crc = crc16(0, buffer, buflen);
+	if (crc) {
+		dev_warn_ratelimited(&applespi->spi->dev,
+				     "Received corrupted packet (crc mismatch)\n");
+		trace_applespi_bad_crc(ET_RD_CRC, READ, buffer, buflen);
+
+		return false;
+	}
+
+	return true;
+}
+
+static void applespi_debug_print_read_packet(struct applespi_data *applespi,
+					     struct spi_packet *packet)
+{
+	unsigned int evt_type;
+
+	if (packet->flags == PACKET_TYPE_READ &&
+	    packet->device == PACKET_DEV_KEYB)
+		evt_type = ET_RD_KEYB;
+	else if (packet->flags == PACKET_TYPE_READ &&
+		 packet->device == PACKET_DEV_TPAD)
+		evt_type = ET_RD_TPAD;
+	else if (packet->flags == PACKET_TYPE_WRITE)
+		evt_type = applespi->cmd_evt_type;
+	else
+		evt_type = ET_RD_UNKN;
+
+	applespi_get_trace_fun(evt_type)(evt_type, PT_READ, applespi->rx_buffer,
+					 APPLESPI_PACKET_SIZE);
+}
+
+static void applespi_got_data(struct applespi_data *applespi)
+{
+	struct spi_packet *packet;
+	struct message *message;
+	unsigned int msg_len;
+	unsigned int off;
+	unsigned int rem;
+	unsigned int len;
+
+	/* process packet header */
+	if (!applespi_verify_crc(applespi, applespi->rx_buffer,
+				 APPLESPI_PACKET_SIZE)) {
+		unsigned long flags;
+
+		spin_lock_irqsave(&applespi->cmd_msg_lock, flags);
+
+		if (applespi->drain) {
+			applespi->read_active = false;
+			applespi->write_active = false;
+
+			wake_up_all(&applespi->drain_complete);
+		}
+
+		spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);
+
+		return;
+	}
+
+	packet = (struct spi_packet *)applespi->rx_buffer;
+
+	applespi_debug_print_read_packet(applespi, packet);
+
+	off = le16_to_cpu(packet->offset);
+	rem = le16_to_cpu(packet->remaining);
+	len = le16_to_cpu(packet->length);
+
+	if (len > sizeof(packet->data)) {
+		dev_warn_ratelimited(&applespi->spi->dev,
+				     "Received corrupted packet (invalid packet length %u)\n",
+				     len);
+		goto msg_complete;
+	}
+
+	/* handle multi-packet messages */
+	if (rem > 0 || off > 0) {
+		if (off != applespi->saved_msg_len) {
+			dev_warn_ratelimited(&applespi->spi->dev,
+					     "Received unexpected offset (got %u, expected %u)\n",
+					     off, applespi->saved_msg_len);
+			goto msg_complete;
+		}
+
+		if (off + rem > MAX_PKTS_PER_MSG * APPLESPI_PACKET_SIZE) {
+			dev_warn_ratelimited(&applespi->spi->dev,
+					     "Received message too large (size %u)\n",
+					     off + rem);
+			goto msg_complete;
+		}
+
+		if (off + len > MAX_PKTS_PER_MSG * APPLESPI_PACKET_SIZE) {
+			dev_warn_ratelimited(&applespi->spi->dev,
+					     "Received message too large (size %u)\n",
+					     off + len);
+			goto msg_complete;
+		}
+
+		memcpy(applespi->msg_buf + off, &packet->data, len);
+		applespi->saved_msg_len += len;
+
+		if (rem > 0)
+			return;
+
+		message = (struct message *)applespi->msg_buf;
+		msg_len = applespi->saved_msg_len;
+	} else {
+		message = (struct message *)&packet->data;
+		msg_len = len;
+	}
+
+	/* got complete message - verify */
+	if (!applespi_verify_crc(applespi, (u8 *)message, msg_len))
+		goto msg_complete;
+
+	if (le16_to_cpu(message->length) != msg_len - MSG_HEADER_SIZE - 2) {
+		dev_warn_ratelimited(&applespi->spi->dev,
+				     "Received corrupted packet (invalid message length %u - expected %u)\n",
+				     le16_to_cpu(message->length),
+				     msg_len - MSG_HEADER_SIZE - 2);
+		goto msg_complete;
+	}
+
+	/* handle message */
+	if (packet->flags == PACKET_TYPE_READ &&
+	    packet->device == PACKET_DEV_KEYB) {
+		applespi_handle_keyboard_event(applespi, &message->keyboard);
+
+	} else if (packet->flags == PACKET_TYPE_READ &&
+		   packet->device == PACKET_DEV_TPAD) {
+		struct touchpad_protocol *tp;
+		size_t tp_len;
+
+		tp = &message->touchpad;
+		tp_len = sizeof(*tp) +
+			 tp->number_of_fingers * sizeof(tp->fingers[0]);
+
+		if (le16_to_cpu(message->length) + 2 != tp_len) {
+			dev_warn_ratelimited(&applespi->spi->dev,
+					     "Received corrupted packet (invalid message length %u - num-fingers %u, tp-len %zu)\n",
+					     le16_to_cpu(message->length),
+					     tp->number_of_fingers, tp_len);
+			goto msg_complete;
+		}
+
+		if (tp->number_of_fingers > MAX_FINGERS) {
+			dev_warn_ratelimited(&applespi->spi->dev,
+					     "Number of reported fingers (%u) exceeds max (%u))\n",
+					     tp->number_of_fingers,
+					     MAX_FINGERS);
+			tp->number_of_fingers = MAX_FINGERS;
+		}
+
+		report_tp_state(applespi, tp);
+
+	} else if (packet->flags == PACKET_TYPE_WRITE) {
+		applespi_handle_cmd_response(applespi, packet, message);
+	}
+
+msg_complete:
+	applespi->saved_msg_len = 0;
+
+	applespi_msg_complete(applespi, packet->flags == PACKET_TYPE_WRITE,
+			      true);
+}
+
+static void applespi_async_read_complete(void *context)
+{
+	struct applespi_data *applespi = context;
+
+	if (applespi->rd_m.status < 0) {
+		dev_warn(&applespi->spi->dev, "Error reading from device: %d\n",
+			 applespi->rd_m.status);
+		/*
+		 * We don't actually know if this was a pure read, or a response
+		 * to a write. But this is a rare error condition that should
+		 * never occur, so clearing both flags to avoid deadlock.
+		 */
+		applespi_msg_complete(applespi, true, true);
+	} else {
+		applespi_got_data(applespi);
+	}
+
+	acpi_finish_gpe(NULL, applespi->gpe);
+}
+
+static u32 applespi_notify(acpi_handle gpe_device, u32 gpe, void *context)
+{
+	struct applespi_data *applespi = context;
+	int sts;
+	unsigned long flags;
+
+	trace_applespi_irq_received(ET_RD_IRQ, PT_READ);
+
+	spin_lock_irqsave(&applespi->cmd_msg_lock, flags);
+
+	if (!applespi->suspended) {
+		sts = applespi_async(applespi, &applespi->rd_m,
+				     applespi_async_read_complete);
+		if (sts)
+			dev_warn(&applespi->spi->dev,
+				 "Error queueing async read to device: %d\n",
+				 sts);
+		else
+			applespi->read_active = true;
+	}
+
+	spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);
+
+	return ACPI_INTERRUPT_HANDLED;
+}
+
+static int applespi_get_saved_bl_level(struct applespi_data *applespi)
+{
+	struct efivar_entry *efivar_entry;
+	u16 efi_data = 0;
+	unsigned long efi_data_len;
+	int sts;
+
+	efivar_entry = kmalloc(sizeof(*efivar_entry), GFP_KERNEL);
+	if (!efivar_entry)
+		return -ENOMEM;
+
+	memcpy(efivar_entry->var.VariableName, EFI_BL_LEVEL_NAME,
+	       sizeof(EFI_BL_LEVEL_NAME));
+	efivar_entry->var.VendorGuid = EFI_BL_LEVEL_GUID;
+	efi_data_len = sizeof(efi_data);
+
+	sts = efivar_entry_get(efivar_entry, NULL, &efi_data_len, &efi_data);
+	if (sts && sts != -ENOENT)
+		dev_warn(&applespi->spi->dev,
+			 "Error getting backlight level from EFI vars: %d\n",
+			 sts);
+
+	kfree(efivar_entry);
+
+	return sts ? sts : efi_data;
+}
+
+static void applespi_save_bl_level(struct applespi_data *applespi,
+				   unsigned int level)
+{
+	efi_guid_t efi_guid;
+	u32 efi_attr;
+	unsigned long efi_data_len;
+	u16 efi_data;
+	int sts;
+
+	/* Save keyboard backlight level */
+	efi_guid = EFI_BL_LEVEL_GUID;
+	efi_data = (u16)level;
+	efi_data_len = sizeof(efi_data);
+	efi_attr = EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS |
+		   EFI_VARIABLE_RUNTIME_ACCESS;
+
+	sts = efivar_entry_set_safe(EFI_BL_LEVEL_NAME, efi_guid, efi_attr, true,
+				    efi_data_len, &efi_data);
+	if (sts)
+		dev_warn(&applespi->spi->dev,
+			 "Error saving backlight level to EFI vars: %d\n", sts);
+}
+
+static int applespi_probe(struct spi_device *spi)
+{
+	struct applespi_data *applespi;
+	acpi_handle spi_handle = ACPI_HANDLE(&spi->dev);
+	acpi_status acpi_sts;
+	int sts, i;
+	unsigned long long gpe, usb_status;
+
+	/* check if the USB interface is present and enabled already */
+	acpi_sts = acpi_evaluate_integer(spi_handle, "UIST", NULL, &usb_status);
+	if (ACPI_SUCCESS(acpi_sts) && usb_status) {
+		/* let the USB driver take over instead */
+		dev_info(&spi->dev, "USB interface already enabled\n");
+		return -ENODEV;
+	}
+
+	/* allocate driver data */
+	applespi = devm_kzalloc(&spi->dev, sizeof(*applespi), GFP_KERNEL);
+	if (!applespi)
+		return -ENOMEM;
+
+	applespi->spi = spi;
+
+	INIT_WORK(&applespi->work, applespi_worker);
+
+	/* store the driver data */
+	spi_set_drvdata(spi, applespi);
+
+	/* create our buffers */
+	applespi->tx_buffer = devm_kmalloc(&spi->dev, APPLESPI_PACKET_SIZE,
+					   GFP_KERNEL);
+	applespi->tx_status = devm_kmalloc(&spi->dev, APPLESPI_STATUS_SIZE,
+					   GFP_KERNEL);
+	applespi->rx_buffer = devm_kmalloc(&spi->dev, APPLESPI_PACKET_SIZE,
+					   GFP_KERNEL);
+	applespi->msg_buf = devm_kmalloc_array(&spi->dev, MAX_PKTS_PER_MSG,
+					       APPLESPI_PACKET_SIZE,
+					       GFP_KERNEL);
+
+	if (!applespi->tx_buffer || !applespi->tx_status ||
+	    !applespi->rx_buffer || !applespi->msg_buf)
+		return -ENOMEM;
+
+	/* set up our spi messages */
+	applespi_setup_read_txfrs(applespi);
+	applespi_setup_write_txfrs(applespi);
+
+	/* cache ACPI method handles */
+	acpi_sts = acpi_get_handle(spi_handle, "SIEN", &applespi->sien);
+	if (ACPI_FAILURE(acpi_sts)) {
+		dev_err(&applespi->spi->dev,
+			"Failed to get SIEN ACPI method handle: %s\n",
+			acpi_format_exception(acpi_sts));
+		return -ENODEV;
+	}
+
+	acpi_sts = acpi_get_handle(spi_handle, "SIST", &applespi->sist);
+	if (ACPI_FAILURE(acpi_sts)) {
+		dev_err(&applespi->spi->dev,
+			"Failed to get SIST ACPI method handle: %s\n",
+			acpi_format_exception(acpi_sts));
+		return -ENODEV;
+	}
+
+	/* switch on the SPI interface */
+	sts = applespi_setup_spi(applespi);
+	if (sts)
+		return sts;
+
+	sts = applespi_enable_spi(applespi);
+	if (sts)
+		return sts;
+
+	/* setup the keyboard input dev */
+	applespi->keyboard_input_dev = devm_input_allocate_device(&spi->dev);
+
+	if (!applespi->keyboard_input_dev)
+		return -ENOMEM;
+
+	applespi->keyboard_input_dev->name = "Apple SPI Keyboard";
+	applespi->keyboard_input_dev->phys = "applespi/input0";
+	applespi->keyboard_input_dev->dev.parent = &spi->dev;
+	applespi->keyboard_input_dev->id.bustype = BUS_SPI;
+
+	applespi->keyboard_input_dev->evbit[0] =
+			BIT_MASK(EV_KEY) | BIT_MASK(EV_LED) | BIT_MASK(EV_REP);
+	applespi->keyboard_input_dev->ledbit[0] = BIT_MASK(LED_CAPSL);
+
+	input_set_drvdata(applespi->keyboard_input_dev, applespi);
+	applespi->keyboard_input_dev->event = applespi_event;
+
+	for (i = 0; i < ARRAY_SIZE(applespi_scancodes); i++)
+		if (applespi_scancodes[i])
+			input_set_capability(applespi->keyboard_input_dev,
+					     EV_KEY, applespi_scancodes[i]);
+
+	for (i = 0; i < ARRAY_SIZE(applespi_controlcodes); i++)
+		if (applespi_controlcodes[i])
+			input_set_capability(applespi->keyboard_input_dev,
+					     EV_KEY, applespi_controlcodes[i]);
+
+	for (i = 0; i < ARRAY_SIZE(applespi_fn_codes); i++)
+		if (applespi_fn_codes[i].to)
+			input_set_capability(applespi->keyboard_input_dev,
+					     EV_KEY, applespi_fn_codes[i].to);
+
+	input_set_capability(applespi->keyboard_input_dev, EV_KEY, KEY_FN);
+
+	sts = input_register_device(applespi->keyboard_input_dev);
+	if (sts) {
+		dev_err(&applespi->spi->dev,
+			"Unable to register keyboard input device (%d)\n", sts);
+		return -ENODEV;
+	}
+
+	/*
+	 * The applespi device doesn't send interrupts normally (as is described
+	 * in its DSDT), but rather seems to use ACPI GPEs.
+	 */
+	acpi_sts = acpi_evaluate_integer(spi_handle, "_GPE", NULL, &gpe);
+	if (ACPI_FAILURE(acpi_sts)) {
+		dev_err(&applespi->spi->dev,
+			"Failed to obtain GPE for SPI slave device: %s\n",
+			acpi_format_exception(acpi_sts));
+		return -ENODEV;
+	}
+	applespi->gpe = (int)gpe;
+
+	acpi_sts = acpi_install_gpe_handler(NULL, applespi->gpe,
+					    ACPI_GPE_LEVEL_TRIGGERED,
+					    applespi_notify, applespi);
+	if (ACPI_FAILURE(acpi_sts)) {
+		dev_err(&applespi->spi->dev,
+			"Failed to install GPE handler for GPE %d: %s\n",
+			applespi->gpe, acpi_format_exception(acpi_sts));
+		return -ENODEV;
+	}
+
+	applespi->suspended = false;
+
+	acpi_sts = acpi_enable_gpe(NULL, applespi->gpe);
+	if (ACPI_FAILURE(acpi_sts)) {
+		dev_err(&applespi->spi->dev,
+			"Failed to enable GPE handler for GPE %d: %s\n",
+			applespi->gpe, acpi_format_exception(acpi_sts));
+		acpi_remove_gpe_handler(NULL, applespi->gpe, applespi_notify);
+		return -ENODEV;
+	}
+
+	/* trigger touchpad setup */
+	applespi_init(applespi, false);
+
+	/*
+	 * By default this device is not enabled for wakeup; but USB keyboards
+	 * generally are, so the expectation is that by default the keyboard
+	 * will wake the system.
+	 */
+	device_wakeup_enable(&spi->dev);
+
+	/* set up keyboard-backlight */
+	sts = applespi_get_saved_bl_level(applespi);
+	if (sts >= 0)
+		applespi_set_bl_level(&applespi->backlight_info, sts);
+
+	applespi->backlight_info.name            = "spi::kbd_backlight";
+	applespi->backlight_info.default_trigger = "kbd-backlight";
+	applespi->backlight_info.brightness_set  = applespi_set_bl_level;
+
+	sts = devm_led_classdev_register(&spi->dev, &applespi->backlight_info);
+	if (sts)
+		dev_warn(&applespi->spi->dev,
+			 "Unable to register keyboard backlight class dev (%d)\n",
+			 sts);
+
+	/* set up debugfs entries for touchpad dimensions logging */
+	applespi->debugfs_root = debugfs_create_dir("applespi", NULL);
+	if (IS_ERR(applespi->debugfs_root)) {
+		if (PTR_ERR(applespi->debugfs_root) != -ENODEV)
+			dev_warn(&applespi->spi->dev,
+				 "Error creating debugfs root entry (%ld)\n",
+				 PTR_ERR(applespi->debugfs_root));
+	} else {
+		struct dentry *ret;
+
+		ret = debugfs_create_bool("enable_tp_dim", 0600,
+					  applespi->debugfs_root,
+					  &applespi->debug_tp_dim);
+		if (IS_ERR(ret))
+			dev_dbg(&applespi->spi->dev,
+				"Error creating debugfs entry enable_tp_dim (%ld)\n",
+				PTR_ERR(ret));
+
+		ret = debugfs_create_file("tp_dim", 0400,
+					  applespi->debugfs_root, applespi,
+					  &applespi_tp_dim_fops);
+		if (IS_ERR(ret))
+			dev_dbg(&applespi->spi->dev,
+				"Error creating debugfs entry tp_dim (%ld)\n",
+				PTR_ERR(ret));
+	}
+
+	return 0;
+}
+
+static void applespi_drain_writes(struct applespi_data *applespi)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&applespi->cmd_msg_lock, flags);
+
+	applespi->drain = true;
+	wait_event_lock_irq(applespi->drain_complete, !applespi->write_active,
+			    applespi->cmd_msg_lock);
+
+	spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);
+}
+
+static void applespi_drain_reads(struct applespi_data *applespi)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&applespi->cmd_msg_lock, flags);
+
+	wait_event_lock_irq(applespi->drain_complete, !applespi->read_active,
+			    applespi->cmd_msg_lock);
+
+	applespi->suspended = true;
+
+	spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);
+}
+
+static int applespi_remove(struct spi_device *spi)
+{
+	struct applespi_data *applespi = spi_get_drvdata(spi);
+
+	applespi_drain_writes(applespi);
+
+	acpi_disable_gpe(NULL, applespi->gpe);
+	acpi_remove_gpe_handler(NULL, applespi->gpe, applespi_notify);
+	device_wakeup_disable(&spi->dev);
+
+	applespi_drain_reads(applespi);
+
+	debugfs_remove_recursive(applespi->debugfs_root);
+
+	return 0;
+}
+
+static void applespi_shutdown(struct spi_device *spi)
+{
+	struct applespi_data *applespi = spi_get_drvdata(spi);
+
+	applespi_save_bl_level(applespi, applespi->have_bl_level);
+}
+
+static int applespi_poweroff_late(struct device *dev)
+{
+	struct spi_device *spi = to_spi_device(dev);
+	struct applespi_data *applespi = spi_get_drvdata(spi);
+
+	applespi_save_bl_level(applespi, applespi->have_bl_level);
+
+	return 0;
+}
+
+static int __maybe_unused applespi_suspend(struct device *dev)
+{
+	struct spi_device *spi = to_spi_device(dev);
+	struct applespi_data *applespi = spi_get_drvdata(spi);
+	acpi_status acpi_sts;
+	int sts;
+
+	/* turn off caps-lock - it'll stay on otherwise */
+	sts = applespi_set_capsl_led(applespi, false);
+	if (sts)
+		dev_warn(&applespi->spi->dev,
+			 "Failed to turn off caps-lock led (%d)\n", sts);
+
+	applespi_drain_writes(applespi);
+
+	/* disable the interrupt */
+	acpi_sts = acpi_disable_gpe(NULL, applespi->gpe);
+	if (ACPI_FAILURE(acpi_sts))
+		dev_err(&applespi->spi->dev,
+			"Failed to disable GPE handler for GPE %d: %s\n",
+			applespi->gpe, acpi_format_exception(acpi_sts));
+
+	applespi_drain_reads(applespi);
+
+	return 0;
+}
+
+static int __maybe_unused applespi_resume(struct device *dev)
+{
+	struct spi_device *spi = to_spi_device(dev);
+	struct applespi_data *applespi = spi_get_drvdata(spi);
+	acpi_status acpi_sts;
+	unsigned long flags;
+
+	/* ensure our flags and state reflect a newly resumed device */
+	spin_lock_irqsave(&applespi->cmd_msg_lock, flags);
+
+	applespi->drain = false;
+	applespi->have_cl_led_on = false;
+	applespi->have_bl_level = 0;
+	applespi->cmd_msg_queued = false;
+	applespi->read_active = false;
+	applespi->write_active = false;
+
+	applespi->suspended = false;
+
+	spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);
+
+	/* switch on the SPI interface */
+	applespi_enable_spi(applespi);
+
+	/* re-enable the interrupt */
+	acpi_sts = acpi_enable_gpe(NULL, applespi->gpe);
+	if (ACPI_FAILURE(acpi_sts))
+		dev_err(&applespi->spi->dev,
+			"Failed to re-enable GPE handler for GPE %d: %s\n",
+			applespi->gpe, acpi_format_exception(acpi_sts));
+
+	/* switch the touchpad into multitouch mode */
+	applespi_init(applespi, true);
+
+	return 0;
+}
+
+static const struct acpi_device_id applespi_acpi_match[] = {
+	{ "APP000D", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(acpi, applespi_acpi_match);
+
+const struct dev_pm_ops applespi_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(applespi_suspend, applespi_resume)
+	.poweroff_late	= applespi_poweroff_late,
+};
+
+static struct spi_driver applespi_driver = {
+	.driver		= {
+		.name			= "applespi",
+		.acpi_match_table	= applespi_acpi_match,
+		.pm			= &applespi_pm_ops,
+	},
+	.probe		= applespi_probe,
+	.remove		= applespi_remove,
+	.shutdown	= applespi_shutdown,
+};
+
+module_spi_driver(applespi_driver)
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("MacBook(Pro) SPI Keyboard/Touchpad driver");
+MODULE_AUTHOR("Federico Lorenzi");
+MODULE_AUTHOR("Ronald Tschalär");
diff --git a/drivers/input/keyboard/applespi.h b/drivers/input/keyboard/applespi.h
new file mode 100644
index 000000000000..7f5ab10c597a
--- /dev/null
+++ b/drivers/input/keyboard/applespi.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * MacBook (Pro) SPI keyboard and touchpad driver
+ *
+ * Copyright (c) 2015-2019 Federico Lorenzi
+ * Copyright (c) 2017-2019 Ronald Tschalär
+ */
+
+#ifndef _APPLESPI_H_
+#define _APPLESPI_H_
+
+enum applespi_evt_type {
+	ET_CMD_TP_INI = BIT(0),
+	ET_CMD_BL = BIT(1),
+	ET_CMD_CL = BIT(2),
+	ET_RD_KEYB = BIT(8),
+	ET_RD_TPAD = BIT(9),
+	ET_RD_UNKN = BIT(10),
+	ET_RD_IRQ = BIT(11),
+	ET_RD_CRC = BIT(12),
+};
+
+enum applespi_pkt_type {
+	PT_READ,
+	PT_WRITE,
+	PT_STATUS,
+};
+
+#endif /* _APPLESPI_H_ */
diff --git a/drivers/input/keyboard/applespi_trace.h b/drivers/input/keyboard/applespi_trace.h
new file mode 100644
index 000000000000..0ad1a3d79f50
--- /dev/null
+++ b/drivers/input/keyboard/applespi_trace.h
@@ -0,0 +1,93 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * MacBook (Pro) SPI keyboard and touchpad driver
+ *
+ * Copyright (c) 2015-2019 Federico Lorenzi
+ * Copyright (c) 2017-2019 Ronald Tschalär
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM applespi
+
+#if !defined(_APPLESPI_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
+#define _APPLESPI_TRACE_H_
+
+#include <linux/types.h>
+#include <linux/tracepoint.h>
+
+#include "applespi.h"
+
+DECLARE_EVENT_CLASS(dump_message_template,
+	TP_PROTO(enum applespi_evt_type evt_type,
+		 enum applespi_pkt_type pkt_type,
+		 u8 *buf,
+		 size_t len),
+
+	TP_ARGS(evt_type, pkt_type, buf, len),
+
+	TP_STRUCT__entry(
+		__field(enum applespi_evt_type, evt_type)
+		__field(enum applespi_pkt_type, pkt_type)
+		__field(size_t, len)
+		__dynamic_array(u8, buf, len)
+	),
+
+	TP_fast_assign(
+		__entry->evt_type = evt_type;
+		__entry->pkt_type = pkt_type;
+		__entry->len = len;
+		memcpy(__get_dynamic_array(buf), buf, len);
+	),
+
+	TP_printk("%-6s: %s",
+		  __print_symbolic(__entry->pkt_type,
+				   { PT_READ, "read" },
+				   { PT_WRITE, "write" },
+				   { PT_STATUS, "status" }
+		  ),
+		  __print_hex(__get_dynamic_array(buf), __entry->len))
+);
+
+#define DEFINE_DUMP_MESSAGE_EVENT(name)			\
+DEFINE_EVENT(dump_message_template, name,		\
+	TP_PROTO(enum applespi_evt_type evt_type,	\
+		 enum applespi_pkt_type pkt_type,	\
+		 u8 *buf,				\
+		 size_t len),				\
+	TP_ARGS(evt_type, pkt_type, buf, len)		\
+)
+
+DEFINE_DUMP_MESSAGE_EVENT(applespi_tp_ini_cmd);
+DEFINE_DUMP_MESSAGE_EVENT(applespi_backlight_cmd);
+DEFINE_DUMP_MESSAGE_EVENT(applespi_caps_lock_cmd);
+DEFINE_DUMP_MESSAGE_EVENT(applespi_keyboard_data);
+DEFINE_DUMP_MESSAGE_EVENT(applespi_touchpad_data);
+DEFINE_DUMP_MESSAGE_EVENT(applespi_unknown_data);
+DEFINE_DUMP_MESSAGE_EVENT(applespi_bad_crc);
+
+TRACE_EVENT(applespi_irq_received,
+	TP_PROTO(enum applespi_evt_type evt_type,
+		 enum applespi_pkt_type pkt_type),
+
+	TP_ARGS(evt_type, pkt_type),
+
+	TP_STRUCT__entry(
+		__field(enum applespi_evt_type, evt_type)
+		__field(enum applespi_pkt_type, pkt_type)
+	),
+
+	TP_fast_assign(
+		__entry->evt_type = evt_type;
+		__entry->pkt_type = pkt_type;
+	),
+
+	"\n"
+);
+
+#endif /* _APPLESPI_TRACE_H_ */
+
+/* This part must be outside protection */
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH ../../drivers/input/keyboard
+#define TRACE_INCLUDE_FILE applespi_trace
+#include <trace/define_trace.h>
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index 3ad93e3e2f4c..7e3eae54c192 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * AT and PS/2 keyboard driver
  *
  * Copyright (c) 1999-2002 Vojtech Pavlik
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
 
 /*
  * This driver can handle standard AT keyboards and PS/2 keyboards in
diff --git a/drivers/input/keyboard/cap11xx.c b/drivers/input/keyboard/cap11xx.c
index 73686c2460ce..688e2bef682e 100644
--- a/drivers/input/keyboard/cap11xx.c
+++ b/drivers/input/keyboard/cap11xx.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Input driver for Microchip CAP11xx based capacitive touch sensors
  *
  * (c) 2014 Daniel Mack <linux@zonque.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/input/keyboard/cros_ec_keyb.c b/drivers/input/keyboard/cros_ec_keyb.c
index d56001181598..38cb6d82d8fe 100644
--- a/drivers/input/keyboard/cros_ec_keyb.c
+++ b/drivers/input/keyboard/cros_ec_keyb.c
@@ -237,7 +237,7 @@ static int cros_ec_keyb_work(struct notifier_block *nb,
 	if (queued_during_suspend && !device_may_wakeup(ckdev->dev))
 		return NOTIFY_OK;
 
-	switch (ckdev->ec->event_data.event_type) {
+	switch (ckdev->ec->event_data.event_type & EC_MKBP_EVENT_TYPE_MASK) {
 	case EC_MKBP_EVENT_KEY_MATRIX:
 		pm_wakeup_event(ckdev->dev, 0);
 
diff --git a/drivers/input/keyboard/ep93xx_keypad.c b/drivers/input/keyboard/ep93xx_keypad.c
index 575dac52f7b4..7c70492d9d6b 100644
--- a/drivers/input/keyboard/ep93xx_keypad.c
+++ b/drivers/input/keyboard/ep93xx_keypad.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Driver for the Cirrus EP93xx matrix keypad controller.
  *
@@ -5,10 +6,6 @@
  *
  * Based on the pxa27x matrix keypad controller by Rodolfo Giometti.
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
  * NOTE:
  *
  * The 3-key reset is triggered by pressing the 3 keys in
diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index 6cd199e8a370..03f4d152f6b7 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Driver for keys on GPIO lines capable of generating interrupts.
  *
  * Copyright 2005 Phil Blundell
  * Copyright 2010, 2011 David Jander <david@protonic.nl>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/module.h>
@@ -774,7 +771,6 @@ static int gpio_keys_probe(struct platform_device *pdev)
 	struct fwnode_handle *child = NULL;
 	struct gpio_keys_drvdata *ddata;
 	struct input_dev *input;
-	size_t size;
 	int i, error;
 	int wakeup = 0;
 
@@ -784,9 +780,8 @@ static int gpio_keys_probe(struct platform_device *pdev)
 			return PTR_ERR(pdata);
 	}
 
-	size = sizeof(struct gpio_keys_drvdata) +
-			pdata->nbuttons * sizeof(struct gpio_button_data);
-	ddata = devm_kzalloc(dev, size, GFP_KERNEL);
+	ddata = devm_kzalloc(dev, struct_size(ddata, data, pdata->nbuttons),
+			     GFP_KERNEL);
 	if (!ddata) {
 		dev_err(dev, "failed to allocate state\n");
 		return -ENOMEM;
diff --git a/drivers/input/keyboard/gpio_keys_polled.c b/drivers/input/keyboard/gpio_keys_polled.c
index edc7262103b9..465eecfa6b3f 100644
--- a/drivers/input/keyboard/gpio_keys_polled.c
+++ b/drivers/input/keyboard/gpio_keys_polled.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  Driver for buttons on GPIO lines not capable of generating interrupts
  *
@@ -9,10 +10,6 @@
  *
  *  also was based on: /drivers/input/keyboard/gpio_keys.c
  *	Copyright 2005 Phil Blundell
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
@@ -168,6 +165,8 @@ gpio_keys_polled_get_devtree_pdata(struct device *dev)
 	pdata->rep = device_property_present(dev, "autorepeat");
 	device_property_read_u32(dev, "poll-interval", &pdata->poll_interval);
 
+	device_property_read_string(dev, "label", &pdata->name);
+
 	device_for_each_child_node(dev, child) {
 		if (fwnode_property_read_u32(child, "linux,code",
 					     &button->code)) {
@@ -235,7 +234,6 @@ static int gpio_keys_polled_probe(struct platform_device *pdev)
 	struct gpio_keys_polled_dev *bdev;
 	struct input_polled_dev *poll_dev;
 	struct input_dev *input;
-	size_t size;
 	int error;
 	int i;
 
@@ -250,9 +248,8 @@ static int gpio_keys_polled_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	size = sizeof(struct gpio_keys_polled_dev) +
-			pdata->nbuttons * sizeof(struct gpio_keys_button_data);
-	bdev = devm_kzalloc(dev, size, GFP_KERNEL);
+	bdev = devm_kzalloc(dev, struct_size(bdev, data, pdata->nbuttons),
+			    GFP_KERNEL);
 	if (!bdev) {
 		dev_err(dev, "no memory for private data\n");
 		return -ENOMEM;
@@ -272,7 +269,7 @@ static int gpio_keys_polled_probe(struct platform_device *pdev)
 
 	input = poll_dev->input;
 
-	input->name = pdev->name;
+	input->name = pdata->name ?: pdev->name;
 	input->phys = DRV_NAME"/input0";
 
 	input->id.bustype = BUS_HOST;
diff --git a/drivers/input/keyboard/imx_keypad.c b/drivers/input/keyboard/imx_keypad.c
index 539cb670de41..97500a2de2d5 100644
--- a/drivers/input/keyboard/imx_keypad.c
+++ b/drivers/input/keyboard/imx_keypad.c
@@ -422,7 +422,6 @@ static int imx_keypad_probe(struct platform_device *pdev)
 			dev_get_platdata(&pdev->dev);
 	struct imx_keypad *keypad;
 	struct input_dev *input_dev;
-	struct resource *res;
 	int irq, error, i, row, col;
 
 	if (!keymap_data && !pdev->dev.of_node) {
@@ -455,8 +454,7 @@ static int imx_keypad_probe(struct platform_device *pdev)
 	timer_setup(&keypad->check_matrix_timer,
 		    imx_keypad_check_for_events, 0);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	keypad->mmio_base = devm_ioremap_resource(&pdev->dev, res);
+	keypad->mmio_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(keypad->mmio_base))
 		return PTR_ERR(keypad->mmio_base);
 
@@ -526,11 +524,12 @@ static int imx_keypad_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __maybe_unused imx_kbd_suspend(struct device *dev)
+static int __maybe_unused imx_kbd_noirq_suspend(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct imx_keypad *kbd = platform_get_drvdata(pdev);
 	struct input_dev *input_dev = kbd->input_dev;
+	unsigned short reg_val = readw(kbd->mmio_base + KPSR);
 
 	/* imx kbd can wake up system even clock is disabled */
 	mutex_lock(&input_dev->mutex);
@@ -540,13 +539,20 @@ static int __maybe_unused imx_kbd_suspend(struct device *dev)
 
 	mutex_unlock(&input_dev->mutex);
 
-	if (device_may_wakeup(&pdev->dev))
+	if (device_may_wakeup(&pdev->dev)) {
+		if (reg_val & KBD_STAT_KPKD)
+			reg_val |= KBD_STAT_KRIE;
+		if (reg_val & KBD_STAT_KPKR)
+			reg_val |= KBD_STAT_KDIE;
+		writew(reg_val, kbd->mmio_base + KPSR);
+
 		enable_irq_wake(kbd->irq);
+	}
 
 	return 0;
 }
 
-static int __maybe_unused imx_kbd_resume(struct device *dev)
+static int __maybe_unused imx_kbd_noirq_resume(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct imx_keypad *kbd = platform_get_drvdata(pdev);
@@ -570,7 +576,9 @@ err_clk:
 	return ret;
 }
 
-static SIMPLE_DEV_PM_OPS(imx_kbd_pm_ops, imx_kbd_suspend, imx_kbd_resume);
+static const struct dev_pm_ops imx_kbd_pm_ops = {
+	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(imx_kbd_noirq_suspend, imx_kbd_noirq_resume)
+};
 
 static struct platform_driver imx_keypad_driver = {
 	.driver		= {
diff --git a/drivers/input/keyboard/ipaq-micro-keys.c b/drivers/input/keyboard/ipaq-micro-keys.c
index 602900d1f937..e3f9e445e880 100644
--- a/drivers/input/keyboard/ipaq-micro-keys.c
+++ b/drivers/input/keyboard/ipaq-micro-keys.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  *
  * h3600 atmel micro companion support, key subdevice
  * based on previous kernel 2.4 version
  * Author : Alessandro Gardich <gremlin@gremlin.it>
  * Author : Linus Walleij <linus.walleij@linaro.org>
- *
  */
 #include <linux/module.h>
 #include <linux/init.h>
diff --git a/drivers/input/keyboard/jornada680_kbd.c b/drivers/input/keyboard/jornada680_kbd.c
index 0116ac99f44c..4232aa876d2e 100644
--- a/drivers/input/keyboard/jornada680_kbd.c
+++ b/drivers/input/keyboard/jornada680_kbd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * drivers/input/keyboard/jornada680_kbd.c
  *
@@ -10,10 +11,6 @@
  * Split from drivers/input/keyboard/hp600_keyb.c
  *  Copyright (C) 2000 Yaegashi Takeshi (hp6xx kbd scan routine and translation table)
  *  Copyright (C) 2000 Niibe Yutaka (HP620 Keyb translation table)
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/device.h>
diff --git a/drivers/input/keyboard/jornada720_kbd.c b/drivers/input/keyboard/jornada720_kbd.c
index 1277c39f9482..cd9af5221c3d 100644
--- a/drivers/input/keyboard/jornada720_kbd.c
+++ b/drivers/input/keyboard/jornada720_kbd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * drivers/input/keyboard/jornada720_kbd.c
  *
@@ -9,11 +10,6 @@
 		Filip Zyzniewsk <Filip.Zyzniewski@tefnet.plX
  *     based on (C) 2004 jornada 720 kbd driver by
 		Alex Lange <chicken@handhelds.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
  */
 #include <linux/device.h>
 #include <linux/errno.h>
diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c
index 3d1cb7bf5e35..30924b57058f 100644
--- a/drivers/input/keyboard/matrix_keypad.c
+++ b/drivers/input/keyboard/matrix_keypad.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  GPIO driven matrix keyboard driver
  *
  *  Copyright (c) 2008 Marek Vasut <marek.vasut@gmail.com>
  *
  *  Based on corgikbd.c
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
- *
  */
 
 #include <linux/types.h>
diff --git a/drivers/input/keyboard/max7359_keypad.c b/drivers/input/keyboard/max7359_keypad.c
index cd44d22d8770..62ce93462955 100644
--- a/drivers/input/keyboard/max7359_keypad.c
+++ b/drivers/input/keyboard/max7359_keypad.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * max7359_keypad.c - MAX7359 Key Switch Controller Driver
  *
@@ -6,10 +7,6 @@
  *
  * Based on pxa27x_keypad.c
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
  * Datasheet: http://www.maxim-ic.com/quick_view2.cfm/qv_pk/5456
  */
 
diff --git a/drivers/input/keyboard/mpr121_touchkey.c b/drivers/input/keyboard/mpr121_touchkey.c
index 884a74d8a7ed..e9ceaa16b46a 100644
--- a/drivers/input/keyboard/mpr121_touchkey.c
+++ b/drivers/input/keyboard/mpr121_touchkey.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Touchkey driver for Freescale MPR121 Controllor
  *
@@ -5,11 +6,6 @@
  * Author: Zhang Jiejing <jiejing.zhang@freescale.com>
  *
  * Based on mcs_touchkey.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
  */
 
 #include <linux/bitops.h>
diff --git a/drivers/input/keyboard/mtk-pmic-keys.c b/drivers/input/keyboard/mtk-pmic-keys.c
index 746ff06eaf8d..62391d6c7da6 100644
--- a/drivers/input/keyboard/mtk-pmic-keys.c
+++ b/drivers/input/keyboard/mtk-pmic-keys.c
@@ -277,8 +277,10 @@ static int mtk_pmic_keys_probe(struct platform_device *pdev)
 		keys->keys[index].regs = &mtk_pmic_regs->keys_regs[index];
 
 		keys->keys[index].irq = platform_get_irq(pdev, index);
-		if (keys->keys[index].irq < 0)
+		if (keys->keys[index].irq < 0) {
+			of_node_put(child);
 			return keys->keys[index].irq;
+		}
 
 		error = of_property_read_u32(child,
 			"linux,keycodes", &keys->keys[index].keycode);
@@ -286,6 +288,7 @@ static int mtk_pmic_keys_probe(struct platform_device *pdev)
 			dev_err(keys->dev,
 				"failed to read key:%d linux,keycode property: %d\n",
 				index, error);
+			of_node_put(child);
 			return error;
 		}
 
@@ -293,8 +296,10 @@ static int mtk_pmic_keys_probe(struct platform_device *pdev)
 			keys->keys[index].wakeup = true;
 
 		error = mtk_pmic_key_setup(keys, &keys->keys[index]);
-		if (error)
+		if (error) {
+			of_node_put(child);
 			return error;
+		}
 
 		index++;
 	}
diff --git a/drivers/input/keyboard/nspire-keypad.c b/drivers/input/keyboard/nspire-keypad.c
index c7f26fa3034c..57eac91ecd76 100644
--- a/drivers/input/keyboard/nspire-keypad.c
+++ b/drivers/input/keyboard/nspire-keypad.c
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  Copyright (C) 2013 Daniel Tang <tangrs@tangrs.id.au>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2, as
- * published by the Free Software Foundation.
  */
 
 #include <linux/input/matrix_keypad.h>
diff --git a/drivers/input/keyboard/pxa27x_keypad.c b/drivers/input/keyboard/pxa27x_keypad.c
index d0bdaeadf86d..39023664d2f2 100644
--- a/drivers/input/keyboard/pxa27x_keypad.c
+++ b/drivers/input/keyboard/pxa27x_keypad.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * linux/drivers/input/keyboard/pxa27x_keypad.c
  *
@@ -9,10 +10,6 @@
  * Based on a previous implementations by Kevin O'Connor
  * <kevin_at_koconnor.net> and Alex Osborne <bobofdoom@gmail.com> and
  * on some suggestions by Nicolas Pitre <nico@fluxnic.net>.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 
diff --git a/drivers/input/keyboard/pxa930_rotary.c b/drivers/input/keyboard/pxa930_rotary.c
index 1cf5211fddaa..585e7765cbf0 100644
--- a/drivers/input/keyboard/pxa930_rotary.c
+++ b/drivers/input/keyboard/pxa930_rotary.c
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Driver for the enhanced rotary controller on pxa930 and pxa935
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/input/keyboard/sh_keysc.c b/drivers/input/keyboard/sh_keysc.c
index 7abf03b4cc9c..08ba41a81f14 100644
--- a/drivers/input/keyboard/sh_keysc.c
+++ b/drivers/input/keyboard/sh_keysc.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * SuperH KEYSC Keypad Driver
  *
  * Copyright (C) 2008 Magnus Damm
  *
  * Based on gpio_keys.c, Copyright 2005 Phil Blundell
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/input/keyboard/st-keyscan.c b/drivers/input/keyboard/st-keyscan.c
index 3b85631fde91..f097128b93fe 100644
--- a/drivers/input/keyboard/st-keyscan.c
+++ b/drivers/input/keyboard/st-keyscan.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics Key Scanning driver
  *
@@ -5,10 +6,6 @@
  * Author: Stuart Menefy <stuart.menefy@st.com>
  *
  * Based on sh_keysc.c, copyright 2008 Magnus Damm
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/module.h>
diff --git a/drivers/input/keyboard/stmpe-keypad.c b/drivers/input/keyboard/stmpe-keypad.c
index d69e631cfa0a..7bf97285e30c 100644
--- a/drivers/input/keyboard/stmpe-keypad.c
+++ b/drivers/input/keyboard/stmpe-keypad.c
@@ -1,7 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) ST-Ericsson SA 2010
  *
- * License Terms: GNU General Public License, version 2
  * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
  */
 
diff --git a/drivers/input/keyboard/sun4i-lradc-keys.c b/drivers/input/keyboard/sun4i-lradc-keys.c
index 6ffdc26b9c89..4a796bed48ac 100644
--- a/drivers/input/keyboard/sun4i-lradc-keys.c
+++ b/drivers/input/keyboard/sun4i-lradc-keys.c
@@ -198,18 +198,21 @@ static int sun4i_lradc_load_dt_keymap(struct device *dev,
 		error = of_property_read_u32(pp, "channel", &channel);
 		if (error || channel != 0) {
 			dev_err(dev, "%pOFn: Inval channel prop\n", pp);
+			of_node_put(pp);
 			return -EINVAL;
 		}
 
 		error = of_property_read_u32(pp, "voltage", &map->voltage);
 		if (error) {
 			dev_err(dev, "%pOFn: Inval voltage prop\n", pp);
+			of_node_put(pp);
 			return -EINVAL;
 		}
 
 		error = of_property_read_u32(pp, "linux,code", &map->keycode);
 		if (error) {
 			dev_err(dev, "%pOFn: Inval linux,code prop\n", pp);
+			of_node_put(pp);
 			return -EINVAL;
 		}
 
diff --git a/drivers/input/keyboard/tc3589x-keypad.c b/drivers/input/keyboard/tc3589x-keypad.c
index ec0070e97090..89b9575dc75d 100644
--- a/drivers/input/keyboard/tc3589x-keypad.c
+++ b/drivers/input/keyboard/tc3589x-keypad.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) ST-Ericsson SA 2010
  *
  * Author: Jayeeta Banerjee <jayeeta.banerjee@stericsson.com>
  * Author: Sundar Iyer <sundar.iyer@stericsson.com>
  *
- * License Terms: GNU General Public License, version 2
- *
  * TC35893 MFD Keypad Controller driver
  */
 
diff --git a/drivers/input/keyboard/tca6416-keypad.c b/drivers/input/keyboard/tca6416-keypad.c
index cdeef180aead..2a14769de637 100644
--- a/drivers/input/keyboard/tca6416-keypad.c
+++ b/drivers/input/keyboard/tca6416-keypad.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Driver for keys on TCA6416 I2C IO expander
  *
  * Copyright (C) 2010 Texas Instruments
  *
  * Author : Sriramakrishnan.A.G. <srk@ti.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/types.h>
diff --git a/drivers/input/keyboard/tca8418_keypad.c b/drivers/input/keyboard/tca8418_keypad.c
index 6da607d3b811..3bbd7e652533 100644
--- a/drivers/input/keyboard/tca8418_keypad.c
+++ b/drivers/input/keyboard/tca8418_keypad.c
@@ -266,7 +266,7 @@ static int tca8418_keypad_probe(struct i2c_client *client,
 	struct tca8418_keypad *keypad_data;
 	struct input_dev *input;
 	u32 rows = 0, cols = 0;
-	int error, row_shift, max_keys;
+	int error, row_shift;
 	u8 reg;
 
 	/* Check i2c driver capabilities */
@@ -291,7 +291,6 @@ static int tca8418_keypad_probe(struct i2c_client *client,
 	}
 
 	row_shift = get_count_order(cols);
-	max_keys = rows << row_shift;
 
 	/* Allocate memory for keypad_data and input device */
 	keypad_data = devm_kzalloc(dev, sizeof(*keypad_data), GFP_KERNEL);
diff --git a/drivers/input/keyboard/tm2-touchkey.c b/drivers/input/keyboard/tm2-touchkey.c
index d4455f3a5cf1..14b55bacdd0f 100644
--- a/drivers/input/keyboard/tm2-touchkey.c
+++ b/drivers/input/keyboard/tm2-touchkey.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * TM2 touchkey device driver
  *
@@ -6,10 +7,6 @@
  *
  * Author: Beomho Seo <beomho.seo@samsung.com>
  * Author: Jaechul Lee <jcsing.lee@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/bitops.h>
diff --git a/drivers/input/misc/apanel.c b/drivers/input/misc/apanel.c
index c1e66f45d552..53ec40d1b90d 100644
--- a/drivers/input/misc/apanel.c
+++ b/drivers/input/misc/apanel.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  Fujitsu Lifebook Application Panel button drive
  *
  *  Copyright (C) 2007 Stephen Hemminger <shemminger@linux-foundation.org>
  *  Copyright (C) 2001-2003 Jochen Eisinger <jochen@penguin-breeder.org>
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
  * Many Fujitsu Lifebook laptops have a small panel of buttons that are
  * accessible via the i2c/smbus interface. This driver polls those
  * buttons and generates input events.
diff --git a/drivers/input/misc/arizona-haptics.c b/drivers/input/misc/arizona-haptics.c
index 21dc1b8b2a4a..5fa1c9438a85 100644
--- a/drivers/input/misc/arizona-haptics.c
+++ b/drivers/input/misc/arizona-haptics.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Arizona haptics driver
  *
  * Copyright 2012 Wolfson Microelectronics plc
  *
  * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/module.h>
diff --git a/drivers/input/misc/ati_remote2.c b/drivers/input/misc/ati_remote2.c
index d8fd58fdf050..305f0160506a 100644
--- a/drivers/input/misc/ati_remote2.c
+++ b/drivers/input/misc/ati_remote2.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * ati_remote2 - ATI/Philips USB RF remote driver
  *
  * Copyright (C) 2005-2008 Ville Syrjala <syrjala@sci.fi>
  * Copyright (C) 2007-2008 Peter Stokes <linux@dadeos.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
  */
 
 #include <linux/usb/input.h>
diff --git a/drivers/input/misc/cma3000_d0x.c b/drivers/input/misc/cma3000_d0x.c
index c7d00748277b..e6feb73bb52b 100644
--- a/drivers/input/misc/cma3000_d0x.c
+++ b/drivers/input/misc/cma3000_d0x.c
@@ -1,20 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * VTI CMA3000_D0x Accelerometer driver
  *
  * Copyright (C) 2010 Texas Instruments
  * Author: Hemanth V <hemanthv@ti.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <linux/types.h>
diff --git a/drivers/input/misc/cma3000_d0x.h b/drivers/input/misc/cma3000_d0x.h
index 2304ce306e1c..05ad42a564df 100644
--- a/drivers/input/misc/cma3000_d0x.h
+++ b/drivers/input/misc/cma3000_d0x.h
@@ -1,20 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * VTI CMA3000_D0x Accelerometer driver
  *
  * Copyright (C) 2010 Texas Instruments
  * Author: Hemanth V <hemanthv@ti.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #ifndef _INPUT_CMA3000_H
diff --git a/drivers/input/misc/cma3000_d0x_i2c.c b/drivers/input/misc/cma3000_d0x_i2c.c
index c7021916b64b..03fb49127c3a 100644
--- a/drivers/input/misc/cma3000_d0x_i2c.c
+++ b/drivers/input/misc/cma3000_d0x_i2c.c
@@ -1,20 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Implements I2C interface for VTI CMA300_D0x Accelerometer driver
  *
  * Copyright (C) 2010 Texas Instruments
  * Author: Hemanth V <hemanthv@ti.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <linux/module.h>
diff --git a/drivers/input/misc/da9063_onkey.c b/drivers/input/misc/da9063_onkey.c
index 9d39679372c5..fd355cf59397 100644
--- a/drivers/input/misc/da9063_onkey.c
+++ b/drivers/input/misc/da9063_onkey.c
@@ -13,7 +13,6 @@
 #include <linux/regmap.h>
 #include <linux/of.h>
 #include <linux/mfd/da9063/core.h>
-#include <linux/mfd/da9063/pdata.h>
 #include <linux/mfd/da9063/registers.h>
 #include <linux/mfd/da9062/core.h>
 #include <linux/mfd/da9062/registers.h>
@@ -192,8 +191,6 @@ static void da9063_cancel_poll(void *data)
 
 static int da9063_onkey_probe(struct platform_device *pdev)
 {
-	struct da9063 *da9063 = dev_get_drvdata(pdev->dev.parent);
-	struct da9063_pdata *pdata = dev_get_platdata(da9063->dev);
 	struct da9063_onkey *onkey;
 	const struct of_device_id *match;
 	int irq;
@@ -220,12 +217,8 @@ static int da9063_onkey_probe(struct platform_device *pdev)
 		return -ENXIO;
 	}
 
-	if (pdata)
-		onkey->key_power = pdata->key_power;
-	else
-		onkey->key_power =
-			!of_property_read_bool(pdev->dev.of_node,
-					       "dlg,disable-key-power");
+	onkey->key_power = !of_property_read_bool(pdev->dev.of_node,
+						  "dlg,disable-key-power");
 
 	onkey->input = devm_input_allocate_device(&pdev->dev);
 	if (!onkey->input) {
diff --git a/drivers/input/misc/gp2ap002a00f.c b/drivers/input/misc/gp2ap002a00f.c
index c6a29e57b5e4..90abda8eea67 100644
--- a/drivers/input/misc/gp2ap002a00f.c
+++ b/drivers/input/misc/gp2ap002a00f.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2011 Sony Ericsson Mobile Communications Inc.
  *
  * Author: Courtney Cavin <courtney.cavin@sonyericsson.com>
  * Prepared for up-stream by: Oskar Andero <oskar.andero@sonyericsson.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2, as
- * published by the Free Software Foundation.
  */
 
 #include <linux/i2c.h>
diff --git a/drivers/input/misc/ims-pcu.c b/drivers/input/misc/ims-pcu.c
index 74cf3b612f05..d8dbfc030d0f 100644
--- a/drivers/input/misc/ims-pcu.c
+++ b/drivers/input/misc/ims-pcu.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Driver for IMS Passenger Control Unit Devices
  *
  * Copyright (C) 2013 The IMS Company
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
  */
 
 #include <linux/completion.h>
diff --git a/drivers/input/misc/ixp4xx-beeper.c b/drivers/input/misc/ixp4xx-beeper.c
index 4776273fa10b..794ecc9a552d 100644
--- a/drivers/input/misc/ixp4xx-beeper.c
+++ b/drivers/input/misc/ixp4xx-beeper.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Generic IXP4xx beeper driver
  *
@@ -8,11 +9,6 @@
  *
  * Author: Alessandro Zummo <a.zummo@towertech.it>
  * Maintainers: http://www.nslu2-linux.org/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
  */
 
 #include <linux/module.h>
diff --git a/drivers/input/misc/m68kspkr.c b/drivers/input/misc/m68kspkr.c
index 312d63623038..25fcf1467151 100644
--- a/drivers/input/misc/m68kspkr.c
+++ b/drivers/input/misc/m68kspkr.c
@@ -1,17 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  m68k beeper driver for Linux
  *
  *  Copyright (c) 2002 Richard Zidlicky
  *  Copyright (c) 2002 Vojtech Pavlik
  *  Copyright (c) 1992 Orest Zborowski
- *
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation
- */
 
 #include <linux/kernel.h>
 #include <linux/module.h>
diff --git a/drivers/input/misc/max77650-onkey.c b/drivers/input/misc/max77650-onkey.c
index fbf6caab7217..4d875f2ac13d 100644
--- a/drivers/input/misc/max77650-onkey.c
+++ b/drivers/input/misc/max77650-onkey.c
@@ -119,3 +119,4 @@ module_platform_driver(max77650_onkey_driver);
 MODULE_DESCRIPTION("MAXIM 77650/77651 ONKEY driver");
 MODULE_AUTHOR("Bartosz Golaszewski <bgolaszewski@baylibre.com>");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:max77650-onkey");
diff --git a/drivers/input/misc/pcap_keys.c b/drivers/input/misc/pcap_keys.c
index 3b81daf67726..b5a53636d7e2 100644
--- a/drivers/input/misc/pcap_keys.c
+++ b/drivers/input/misc/pcap_keys.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  Input driver for PCAP events:
  *   * Power key
  *   * Headphone button
  *
  *  Copyright (c) 2008,2009 Ilya Petrov <ilya.muromec@gmail.com>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
- *
  */
 
 #include <linux/module.h>
diff --git a/drivers/input/misc/pcspkr.c b/drivers/input/misc/pcspkr.c
index 56ddba21de84..e5e0d8ba80e1 100644
--- a/drivers/input/misc/pcspkr.c
+++ b/drivers/input/misc/pcspkr.c
@@ -1,16 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  PC Speaker beeper driver for Linux
  *
  *  Copyright (c) 2002 Vojtech Pavlik
  *  Copyright (c) 1992 Orest Zborowski
- *
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation
- */
 
 #include <linux/kernel.h>
 #include <linux/module.h>
diff --git a/drivers/input/misc/regulator-haptic.c b/drivers/input/misc/regulator-haptic.c
index a1db1e5040dc..a661e77545c5 100644
--- a/drivers/input/misc/regulator-haptic.c
+++ b/drivers/input/misc/regulator-haptic.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Regulator haptic driver
  *
  * Copyright (c) 2014 Samsung Electronics Co., Ltd.
  * Author: Jaewon Kim <jaewon02.kim@samsung.com>
  * Author: Hyunhee Kim <hyunhee.kim@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/input.h>
diff --git a/drivers/input/misc/rotary_encoder.c b/drivers/input/misc/rotary_encoder.c
index d748897bf5e9..6d613f2a017c 100644
--- a/drivers/input/misc/rotary_encoder.c
+++ b/drivers/input/misc/rotary_encoder.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * rotary_encoder.c
  *
@@ -8,10 +9,6 @@
  *
  * A generic driver for rotary encoders connected to GPIO lines.
  * See file:Documentation/input/devices/rotary-encoder.rst for more information
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 2ed559dd5e25..84051f20b18a 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -1038,13 +1038,31 @@ static long uinput_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 
 #ifdef CONFIG_COMPAT
 
-#define UI_SET_PHYS_COMPAT	_IOW(UINPUT_IOCTL_BASE, 108, compat_uptr_t)
+/*
+ * These IOCTLs change their size and thus their numbers between
+ * 32 and 64 bits.
+ */
+#define UI_SET_PHYS_COMPAT		\
+	_IOW(UINPUT_IOCTL_BASE, 108, compat_uptr_t)
+#define UI_BEGIN_FF_UPLOAD_COMPAT	\
+	_IOWR(UINPUT_IOCTL_BASE, 200, struct uinput_ff_upload_compat)
+#define UI_END_FF_UPLOAD_COMPAT		\
+	_IOW(UINPUT_IOCTL_BASE, 201, struct uinput_ff_upload_compat)
 
 static long uinput_compat_ioctl(struct file *file,
 				unsigned int cmd, unsigned long arg)
 {
-	if (cmd == UI_SET_PHYS_COMPAT)
+	switch (cmd) {
+	case UI_SET_PHYS_COMPAT:
 		cmd = UI_SET_PHYS;
+		break;
+	case UI_BEGIN_FF_UPLOAD_COMPAT:
+		cmd = UI_BEGIN_FF_UPLOAD;
+		break;
+	case UI_END_FF_UPLOAD_COMPAT:
+		cmd = UI_END_FF_UPLOAD;
+		break;
+	}
 
 	return uinput_ioctl_handler(file, cmd, arg, compat_ptr(arg));
 }
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 0a6f7ca883e7..34700eda0429 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * ALPS touchpad PS/2 mouse driver
  *
@@ -9,10 +10,6 @@
  *
  * ALPS detection, tap switching and status querying info is taken from
  * tpconfig utility (by C. Scott Ananian and Bruce Kall).
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/slab.h>
@@ -24,6 +21,7 @@
 
 #include "psmouse.h"
 #include "alps.h"
+#include "trackpoint.h"
 
 /*
  * Definitions for ALPS version 3 and 4 command mode protocol
@@ -2864,6 +2862,23 @@ static const struct alps_protocol_info *alps_match_table(unsigned char *e7,
 	return NULL;
 }
 
+static bool alps_is_cs19_trackpoint(struct psmouse *psmouse)
+{
+	u8 param[2] = { 0 };
+
+	if (ps2_command(&psmouse->ps2dev,
+			param, MAKE_PS2_CMD(0, 2, TP_READ_ID)))
+		return false;
+
+	/*
+	 * param[0] contains the trackpoint device variant_id while
+	 * param[1] contains the firmware_id. So far all alps
+	 * trackpoint-only devices have their variant_ids equal
+	 * TP_VARIANT_ALPS and their firmware_ids are in 0x20~0x2f range.
+	 */
+	return param[0] == TP_VARIANT_ALPS && ((param[1] & 0xf0) == 0x20);
+}
+
 static int alps_identify(struct psmouse *psmouse, struct alps_data *priv)
 {
 	const struct alps_protocol_info *protocol;
@@ -3165,6 +3180,20 @@ int alps_detect(struct psmouse *psmouse, bool set_properties)
 		return error;
 
 	/*
+	 * ALPS cs19 is a trackpoint-only device, and uses different
+	 * protocol than DualPoint ones, so we return -EINVAL here and let
+	 * trackpoint.c drive this device. If the trackpoint driver is not
+	 * enabled, the device will fall back to a bare PS/2 mouse.
+	 * If ps2_command() fails here, we depend on the immediately
+	 * followed psmouse_reset() to reset the device to normal state.
+	 */
+	if (alps_is_cs19_trackpoint(psmouse)) {
+		psmouse_dbg(psmouse,
+			    "ALPS CS19 trackpoint-only device detected, ignoring\n");
+		return -EINVAL;
+	}
+
+	/*
 	 * Reset the device to make sure it is fully operational:
 	 * on some laptops, like certain Dell Latitudes, we may
 	 * fail to properly detect presence of trackstick if device
diff --git a/drivers/input/mouse/alps.h b/drivers/input/mouse/alps.h
index 79b6d69d1486..f4bab629739c 100644
--- a/drivers/input/mouse/alps.h
+++ b/drivers/input/mouse/alps.h
@@ -1,12 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * ALPS touchpad PS/2 mouse driver
  *
  * Copyright (c) 2003 Peter Osterlund <petero2@telia.com>
  * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #ifndef _ALPS_H
diff --git a/drivers/input/mouse/amimouse.c b/drivers/input/mouse/amimouse.c
index a33437c480e3..a50e50354832 100644
--- a/drivers/input/mouse/amimouse.c
+++ b/drivers/input/mouse/amimouse.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  Amiga mouse driver for Linux/m68k
  *
@@ -11,11 +12,6 @@
  *	Russell King
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation
- */
 
 #include <linux/module.h>
 #include <linux/init.h>
diff --git a/drivers/input/mouse/atarimouse.c b/drivers/input/mouse/atarimouse.c
index 96f2f51604bd..b1219cc4d9a2 100644
--- a/drivers/input/mouse/atarimouse.c
+++ b/drivers/input/mouse/atarimouse.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  Atari mouse driver for Linux/m68k
  *
@@ -7,7 +8,6 @@
  *  Amiga mouse driver for Linux/m68k
  *
  *  Copyright (c) 2000-2002 Vojtech Pavlik
- *
  */
 /*
  * The low level init and interrupt stuff is handled in arch/mm68k/atari/atakeyb.c
@@ -34,11 +34,6 @@
  */
 
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation
- */
 
 #include <linux/module.h>
 #include <linux/init.h>
diff --git a/drivers/input/mouse/byd.c b/drivers/input/mouse/byd.c
index f2aabf7f906f..6e0c5f5a2713 100644
--- a/drivers/input/mouse/byd.c
+++ b/drivers/input/mouse/byd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * BYD TouchPad PS/2 mouse driver
  *
@@ -6,10 +7,6 @@
  * Copyright (C) 2015 Tai Chi Minh Ralph Eastwood
  * Copyright (C) 2015 Martin Wimpress
  * Copyright (C) 2015 Jay Kuri
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/delay.h>
diff --git a/drivers/input/mouse/cypress_ps2.c b/drivers/input/mouse/cypress_ps2.c
index 21bad3e75fee..5f868009d35b 100644
--- a/drivers/input/mouse/cypress_ps2.c
+++ b/drivers/input/mouse/cypress_ps2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Cypress Trackpad PS/2 mouse driver
  *
@@ -9,10 +10,6 @@
  * Additional contributors include:
  *   Kamal Mostafa <kamal@canonical.com>
  *   Kyle Fazzari <git@status.e4ward.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/module.h>
diff --git a/drivers/input/mouse/elan_i2c.h b/drivers/input/mouse/elan_i2c.h
index 243e0fa6e3e3..a9074ac9364f 100644
--- a/drivers/input/mouse/elan_i2c.h
+++ b/drivers/input/mouse/elan_i2c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Elan I2C/SMBus Touchpad driver
  *
@@ -9,10 +10,6 @@
  * copyright (c) 2011-2012 Cypress Semiconductor, Inc.
  * copyright (c) 2011-2012 Google, Inc.
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
  * Trademarks are the property of their respective owners.
  */
 
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index f9525d6f0bfe..d9b103a81a79 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Elan I2C/SMBus Touchpad driver
  *
@@ -11,10 +12,6 @@
  * copyright (c) 2011-2012 Cypress Semiconductor, Inc.
  * copyright (c) 2011-2012 Google, Inc.
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
  * Trademarks are the property of their respective owners.
  */
 
@@ -37,6 +34,7 @@
 #include <linux/completion.h>
 #include <linux/of.h>
 #include <linux/property.h>
+#include <linux/input/elan-i2c-ids.h>
 #include <linux/regulator/consumer.h>
 #include <asm/unaligned.h>
 
@@ -99,6 +97,7 @@ struct elan_tp_data {
 	u8			max_baseline;
 	bool			baseline_ready;
 	u8			clickpad;
+	bool			middle_button;
 };
 
 static int elan_get_fwinfo(u16 ic_type, u16 *validpage_count,
@@ -366,27 +365,62 @@ static unsigned int elan_convert_resolution(u8 val)
 
 static int elan_query_device_parameters(struct elan_tp_data *data)
 {
+	struct i2c_client *client = data->client;
 	unsigned int x_traces, y_traces;
+	u32 x_mm, y_mm;
 	u8 hw_x_res, hw_y_res;
 	int error;
 
-	error = data->ops->get_max(data->client, &data->max_x, &data->max_y);
-	if (error)
-		return error;
-
-	error = data->ops->get_num_traces(data->client, &x_traces, &y_traces);
-	if (error)
-		return error;
+	if (device_property_read_u32(&client->dev,
+				     "touchscreen-size-x", &data->max_x) ||
+	    device_property_read_u32(&client->dev,
+				     "touchscreen-size-y", &data->max_y)) {
+		error = data->ops->get_max(data->client,
+					   &data->max_x,
+					   &data->max_y);
+		if (error)
+			return error;
+	} else {
+		/* size is the maximum + 1 */
+		--data->max_x;
+		--data->max_y;
+	}
 
+	if (device_property_read_u32(&client->dev,
+				     "elan,x_traces",
+				     &x_traces) ||
+	    device_property_read_u32(&client->dev,
+				     "elan,y_traces",
+				     &y_traces)) {
+		error = data->ops->get_num_traces(data->client,
+						  &x_traces, &y_traces);
+		if (error)
+			return error;
+	}
 	data->width_x = data->max_x / x_traces;
 	data->width_y = data->max_y / y_traces;
 
-	error = data->ops->get_resolution(data->client, &hw_x_res, &hw_y_res);
-	if (error)
-		return error;
+	if (device_property_read_u32(&client->dev,
+				     "touchscreen-x-mm", &x_mm) ||
+	    device_property_read_u32(&client->dev,
+				     "touchscreen-y-mm", &y_mm)) {
+		error = data->ops->get_resolution(data->client,
+						  &hw_x_res, &hw_y_res);
+		if (error)
+			return error;
+
+		data->x_res = elan_convert_resolution(hw_x_res);
+		data->y_res = elan_convert_resolution(hw_y_res);
+	} else {
+		data->x_res = (data->max_x + 1) / x_mm;
+		data->y_res = (data->max_y + 1) / y_mm;
+	}
 
-	data->x_res = elan_convert_resolution(hw_x_res);
-	data->y_res = elan_convert_resolution(hw_y_res);
+	if (device_property_read_bool(&client->dev, "elan,clickpad"))
+		data->clickpad = 1;
+
+	if (device_property_read_bool(&client->dev, "elan,middle-button"))
+		data->middle_button = true;
 
 	return 0;
 }
@@ -926,8 +960,9 @@ static void elan_report_absolute(struct elan_tp_data *data, u8 *packet)
 			finger_data += ETP_FINGER_DATA_LEN;
 	}
 
-	input_report_key(input, BTN_LEFT, tp_info & 0x01);
-	input_report_key(input, BTN_RIGHT, tp_info & 0x02);
+	input_report_key(input, BTN_LEFT,   tp_info & BIT(0));
+	input_report_key(input, BTN_MIDDLE, tp_info & BIT(2));
+	input_report_key(input, BTN_RIGHT,  tp_info & BIT(1));
 	input_report_abs(input, ABS_DISTANCE, hover_event != 0);
 	input_mt_report_pointer_emulation(input, true);
 	input_sync(input);
@@ -981,6 +1016,8 @@ static irqreturn_t elan_isr(int irq, void *dev_id)
 	if (error)
 		goto out;
 
+	pm_wakeup_event(dev, 0);
+
 	switch (report[ETP_REPORT_ID_OFFSET]) {
 	case ETP_REPORT_ID:
 		elan_report_absolute(data, report);
@@ -1059,10 +1096,13 @@ static int elan_setup_input_device(struct elan_tp_data *data)
 
 	__set_bit(EV_ABS, input->evbit);
 	__set_bit(INPUT_PROP_POINTER, input->propbit);
-	if (data->clickpad)
+	if (data->clickpad) {
 		__set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
-	else
+	} else {
 		__set_bit(BTN_RIGHT, input->keybit);
+		if (data->middle_button)
+			__set_bit(BTN_MIDDLE, input->keybit);
+	}
 	__set_bit(BTN_LEFT, input->keybit);
 
 	/* Set up ST parameters */
@@ -1333,55 +1373,6 @@ static const struct i2c_device_id elan_id[] = {
 MODULE_DEVICE_TABLE(i2c, elan_id);
 
 #ifdef CONFIG_ACPI
-static const struct acpi_device_id elan_acpi_id[] = {
-	{ "ELAN0000", 0 },
-	{ "ELAN0100", 0 },
-	{ "ELAN0600", 0 },
-	{ "ELAN0601", 0 },
-	{ "ELAN0602", 0 },
-	{ "ELAN0603", 0 },
-	{ "ELAN0604", 0 },
-	{ "ELAN0605", 0 },
-	{ "ELAN0606", 0 },
-	{ "ELAN0607", 0 },
-	{ "ELAN0608", 0 },
-	{ "ELAN0609", 0 },
-	{ "ELAN060B", 0 },
-	{ "ELAN060C", 0 },
-	{ "ELAN060F", 0 },
-	{ "ELAN0610", 0 },
-	{ "ELAN0611", 0 },
-	{ "ELAN0612", 0 },
-	{ "ELAN0615", 0 },
-	{ "ELAN0616", 0 },
-	{ "ELAN0617", 0 },
-	{ "ELAN0618", 0 },
-	{ "ELAN0619", 0 },
-	{ "ELAN061A", 0 },
-	{ "ELAN061B", 0 },
-	{ "ELAN061C", 0 },
-	{ "ELAN061D", 0 },
-	{ "ELAN061E", 0 },
-	{ "ELAN061F", 0 },
-	{ "ELAN0620", 0 },
-	{ "ELAN0621", 0 },
-	{ "ELAN0622", 0 },
-	{ "ELAN0623", 0 },
-	{ "ELAN0624", 0 },
-	{ "ELAN0625", 0 },
-	{ "ELAN0626", 0 },
-	{ "ELAN0627", 0 },
-	{ "ELAN0628", 0 },
-	{ "ELAN0629", 0 },
-	{ "ELAN062A", 0 },
-	{ "ELAN062B", 0 },
-	{ "ELAN062C", 0 },
-	{ "ELAN062D", 0 },
-	{ "ELAN0631", 0 },
-	{ "ELAN0632", 0 },
-	{ "ELAN1000", 0 },
-	{ }
-};
 MODULE_DEVICE_TABLE(acpi, elan_acpi_id);
 #endif
 
diff --git a/drivers/input/mouse/elan_i2c_i2c.c b/drivers/input/mouse/elan_i2c_i2c.c
index e19eb60b3d2f..058b35b1f9a9 100644
--- a/drivers/input/mouse/elan_i2c_i2c.c
+++ b/drivers/input/mouse/elan_i2c_i2c.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Elan I2C/SMBus Touchpad driver - I2C interface
  *
@@ -9,10 +10,6 @@
  * copyright (c) 2011-2012 Cypress Semiconductor, Inc.
  * copyright (c) 2011-2012 Google, Inc.
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
  * Trademarks are the property of their respective owners.
  */
 
diff --git a/drivers/input/mouse/elan_i2c_smbus.c b/drivers/input/mouse/elan_i2c_smbus.c
index 88e315d2cfd3..8c3185d54c73 100644
--- a/drivers/input/mouse/elan_i2c_smbus.c
+++ b/drivers/input/mouse/elan_i2c_smbus.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Elan I2C/SMBus Touchpad driver - SMBus interface
  *
@@ -9,10 +10,6 @@
  * copyright (c) 2011-2012 Cypress Semiconductor, Inc.
  * copyright (c) 2011-2012 Google, Inc.
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
  * Trademarks are the property of their respective owners.
  */
 
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index a7f8b1614559..2d8434b7b623 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Elantech Touchpad driver (v6)
  *
  * Copyright (C) 2007-2009 Arjan Opmeer <arjan@opmeer.net>
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
  * Trademarks are the property of their respective owners.
  */
 
@@ -230,6 +227,52 @@ static void elantech_packet_dump(struct psmouse *psmouse)
 }
 
 /*
+ * Advertise INPUT_PROP_BUTTONPAD for clickpads. The testing of bit 12 in
+ * fw_version for this is based on the following fw_version & caps table:
+ *
+ * Laptop-model:           fw_version:     caps:           buttons:
+ * Acer S3                 0x461f00        10, 13, 0e      clickpad
+ * Acer S7-392             0x581f01        50, 17, 0d      clickpad
+ * Acer V5-131             0x461f02        01, 16, 0c      clickpad
+ * Acer V5-551             0x461f00        ?               clickpad
+ * Asus K53SV              0x450f01        78, 15, 0c      2 hw buttons
+ * Asus G46VW              0x460f02        00, 18, 0c      2 hw buttons
+ * Asus G750JX             0x360f00        00, 16, 0c      2 hw buttons
+ * Asus TP500LN            0x381f17        10, 14, 0e      clickpad
+ * Asus X750JN             0x381f17        10, 14, 0e      clickpad
+ * Asus UX31               0x361f00        20, 15, 0e      clickpad
+ * Asus UX32VD             0x361f02        00, 15, 0e      clickpad
+ * Avatar AVIU-145A2       0x361f00        ?               clickpad
+ * Fujitsu CELSIUS H760    0x570f02        40, 14, 0c      3 hw buttons (**)
+ * Fujitsu CELSIUS H780    0x5d0f02        41, 16, 0d      3 hw buttons (**)
+ * Fujitsu LIFEBOOK E544   0x470f00        d0, 12, 09      2 hw buttons
+ * Fujitsu LIFEBOOK E546   0x470f00        50, 12, 09      2 hw buttons
+ * Fujitsu LIFEBOOK E547   0x470f00        50, 12, 09      2 hw buttons
+ * Fujitsu LIFEBOOK E554   0x570f01        40, 14, 0c      2 hw buttons
+ * Fujitsu LIFEBOOK E557   0x570f01        40, 14, 0c      2 hw buttons
+ * Fujitsu T725            0x470f01        05, 12, 09      2 hw buttons
+ * Fujitsu H730            0x570f00        c0, 14, 0c      3 hw buttons (**)
+ * Gigabyte U2442          0x450f01        58, 17, 0c      2 hw buttons
+ * Lenovo L430             0x350f02        b9, 15, 0c      2 hw buttons (*)
+ * Lenovo L530             0x350f02        b9, 15, 0c      2 hw buttons (*)
+ * Samsung NF210           0x150b00        78, 14, 0a      2 hw buttons
+ * Samsung NP770Z5E        0x575f01        10, 15, 0f      clickpad
+ * Samsung NP700Z5B        0x361f06        21, 15, 0f      clickpad
+ * Samsung NP900X3E-A02    0x575f03        ?               clickpad
+ * Samsung NP-QX410        0x851b00        19, 14, 0c      clickpad
+ * Samsung RC512           0x450f00        08, 15, 0c      2 hw buttons
+ * Samsung RF710           0x450f00        ?               2 hw buttons
+ * System76 Pangolin       0x250f01        ?               2 hw buttons
+ * (*) + 3 trackpoint buttons
+ * (**) + 0 trackpoint buttons
+ * Note: Lenovo L430 and Lenovo L530 have the same fw_version/caps
+ */
+static inline int elantech_is_buttonpad(struct elantech_device_info *info)
+{
+	return info->fw_version & 0x001000;
+}
+
+/*
  * Interpret complete data packets and report absolute mode input events for
  * hardware version 1. (4 byte packets)
  */
@@ -526,7 +569,7 @@ static void elantech_report_absolute_v3(struct psmouse *psmouse,
 	input_report_key(dev, BTN_TOOL_TRIPLETAP, fingers == 3);
 
 	/* For clickpads map both buttons to BTN_LEFT */
-	if (etd->info.fw_version & 0x001000)
+	if (elantech_is_buttonpad(&etd->info))
 		input_report_key(dev, BTN_LEFT, packet[0] & 0x03);
 	else
 		psmouse_report_standard_buttons(dev, packet[0]);
@@ -544,7 +587,7 @@ static void elantech_input_sync_v4(struct psmouse *psmouse)
 	unsigned char *packet = psmouse->packet;
 
 	/* For clickpads map both buttons to BTN_LEFT */
-	if (etd->info.fw_version & 0x001000)
+	if (elantech_is_buttonpad(&etd->info))
 		input_report_key(dev, BTN_LEFT, packet[0] & 0x03);
 	else
 		psmouse_report_standard_buttons(dev, packet[0]);
@@ -994,88 +1037,6 @@ static int elantech_set_absolute_mode(struct psmouse *psmouse)
 	return rc;
 }
 
-static int elantech_set_range(struct psmouse *psmouse,
-			      unsigned int *x_min, unsigned int *y_min,
-			      unsigned int *x_max, unsigned int *y_max,
-			      unsigned int *width)
-{
-	struct elantech_data *etd = psmouse->private;
-	struct elantech_device_info *info = &etd->info;
-	unsigned char param[3];
-	unsigned char traces;
-
-	switch (info->hw_version) {
-	case 1:
-		*x_min = ETP_XMIN_V1;
-		*y_min = ETP_YMIN_V1;
-		*x_max = ETP_XMAX_V1;
-		*y_max = ETP_YMAX_V1;
-		break;
-
-	case 2:
-		if (info->fw_version == 0x020800 ||
-		    info->fw_version == 0x020b00 ||
-		    info->fw_version == 0x020030) {
-			*x_min = ETP_XMIN_V2;
-			*y_min = ETP_YMIN_V2;
-			*x_max = ETP_XMAX_V2;
-			*y_max = ETP_YMAX_V2;
-		} else {
-			int i;
-			int fixed_dpi;
-
-			i = (info->fw_version > 0x020800 &&
-			     info->fw_version < 0x020900) ? 1 : 2;
-
-			if (info->send_cmd(psmouse, ETP_FW_ID_QUERY, param))
-				return -1;
-
-			fixed_dpi = param[1] & 0x10;
-
-			if (((info->fw_version >> 16) == 0x14) && fixed_dpi) {
-				if (info->send_cmd(psmouse, ETP_SAMPLE_QUERY, param))
-					return -1;
-
-				*x_max = (info->capabilities[1] - i) * param[1] / 2;
-				*y_max = (info->capabilities[2] - i) * param[2] / 2;
-			} else if (info->fw_version == 0x040216) {
-				*x_max = 819;
-				*y_max = 405;
-			} else if (info->fw_version == 0x040219 || info->fw_version == 0x040215) {
-				*x_max = 900;
-				*y_max = 500;
-			} else {
-				*x_max = (info->capabilities[1] - i) * 64;
-				*y_max = (info->capabilities[2] - i) * 64;
-			}
-		}
-		break;
-
-	case 3:
-		if (info->send_cmd(psmouse, ETP_FW_ID_QUERY, param))
-			return -1;
-
-		*x_max = (0x0f & param[0]) << 8 | param[1];
-		*y_max = (0xf0 & param[0]) << 4 | param[2];
-		break;
-
-	case 4:
-		if (info->send_cmd(psmouse, ETP_FW_ID_QUERY, param))
-			return -1;
-
-		*x_max = (0x0f & param[0]) << 8 | param[1];
-		*y_max = (0xf0 & param[0]) << 4 | param[2];
-		traces = info->capabilities[1];
-		if ((traces < 2) || (traces > *x_max))
-			return -1;
-
-		*width = *x_max / (traces - 1);
-		break;
-	}
-
-	return 0;
-}
-
 /*
  * (value from firmware) * 10 + 790 = dpi
  * we also have to convert dpi to dots/mm (*10/254 to avoid floating point)
@@ -1102,53 +1063,12 @@ static int elantech_get_resolution_v4(struct psmouse *psmouse,
 	return 0;
 }
 
-/*
- * Advertise INPUT_PROP_BUTTONPAD for clickpads. The testing of bit 12 in
- * fw_version for this is based on the following fw_version & caps table:
- *
- * Laptop-model:           fw_version:     caps:           buttons:
- * Acer S3                 0x461f00        10, 13, 0e      clickpad
- * Acer S7-392             0x581f01        50, 17, 0d      clickpad
- * Acer V5-131             0x461f02        01, 16, 0c      clickpad
- * Acer V5-551             0x461f00        ?               clickpad
- * Asus K53SV              0x450f01        78, 15, 0c      2 hw buttons
- * Asus G46VW              0x460f02        00, 18, 0c      2 hw buttons
- * Asus G750JX             0x360f00        00, 16, 0c      2 hw buttons
- * Asus TP500LN            0x381f17        10, 14, 0e      clickpad
- * Asus X750JN             0x381f17        10, 14, 0e      clickpad
- * Asus UX31               0x361f00        20, 15, 0e      clickpad
- * Asus UX32VD             0x361f02        00, 15, 0e      clickpad
- * Avatar AVIU-145A2       0x361f00        ?               clickpad
- * Fujitsu CELSIUS H760    0x570f02        40, 14, 0c      3 hw buttons (**)
- * Fujitsu CELSIUS H780    0x5d0f02        41, 16, 0d      3 hw buttons (**)
- * Fujitsu LIFEBOOK E544   0x470f00        d0, 12, 09      2 hw buttons
- * Fujitsu LIFEBOOK E546   0x470f00        50, 12, 09      2 hw buttons
- * Fujitsu LIFEBOOK E547   0x470f00        50, 12, 09      2 hw buttons
- * Fujitsu LIFEBOOK E554   0x570f01        40, 14, 0c      2 hw buttons
- * Fujitsu LIFEBOOK E557   0x570f01        40, 14, 0c      2 hw buttons
- * Fujitsu T725            0x470f01        05, 12, 09      2 hw buttons
- * Fujitsu H730            0x570f00        c0, 14, 0c      3 hw buttons (**)
- * Gigabyte U2442          0x450f01        58, 17, 0c      2 hw buttons
- * Lenovo L430             0x350f02        b9, 15, 0c      2 hw buttons (*)
- * Lenovo L530             0x350f02        b9, 15, 0c      2 hw buttons (*)
- * Samsung NF210           0x150b00        78, 14, 0a      2 hw buttons
- * Samsung NP770Z5E        0x575f01        10, 15, 0f      clickpad
- * Samsung NP700Z5B        0x361f06        21, 15, 0f      clickpad
- * Samsung NP900X3E-A02    0x575f03        ?               clickpad
- * Samsung NP-QX410        0x851b00        19, 14, 0c      clickpad
- * Samsung RC512           0x450f00        08, 15, 0c      2 hw buttons
- * Samsung RF710           0x450f00        ?               2 hw buttons
- * System76 Pangolin       0x250f01        ?               2 hw buttons
- * (*) + 3 trackpoint buttons
- * (**) + 0 trackpoint buttons
- * Note: Lenovo L430 and Lenovo L530 have the same fw_version/caps
- */
 static void elantech_set_buttonpad_prop(struct psmouse *psmouse)
 {
 	struct input_dev *dev = psmouse->dev;
 	struct elantech_data *etd = psmouse->private;
 
-	if (etd->info.fw_version & 0x001000) {
+	if (elantech_is_buttonpad(&etd->info)) {
 		__set_bit(INPUT_PROP_BUTTONPAD, dev->propbit);
 		__clear_bit(BTN_RIGHT, dev->keybit);
 	}
@@ -1184,14 +1104,6 @@ static const struct dmi_system_id elantech_dmi_has_middle_button[] = {
 	{ }
 };
 
-static const char * const middle_button_pnp_ids[] = {
-	"LEN2131", /* ThinkPad P52 w/ NFC */
-	"LEN2132", /* ThinkPad P52 */
-	"LEN2133", /* ThinkPad P72 w/ NFC */
-	"LEN2134", /* ThinkPad P72 */
-	NULL
-};
-
 /*
  * Set the appropriate event bits for the input subsystem
  */
@@ -1200,10 +1112,9 @@ static int elantech_set_input_params(struct psmouse *psmouse)
 	struct input_dev *dev = psmouse->dev;
 	struct elantech_data *etd = psmouse->private;
 	struct elantech_device_info *info = &etd->info;
-	unsigned int x_min = 0, y_min = 0, x_max = 0, y_max = 0, width = 0;
-
-	if (elantech_set_range(psmouse, &x_min, &y_min, &x_max, &y_max, &width))
-		return -1;
+	unsigned int x_min = info->x_min, y_min = info->y_min,
+		     x_max = info->x_max, y_max = info->y_max,
+		     width = info->width;
 
 	__set_bit(INPUT_PROP_POINTER, dev->propbit);
 	__set_bit(EV_KEY, dev->evbit);
@@ -1211,8 +1122,7 @@ static int elantech_set_input_params(struct psmouse *psmouse)
 	__clear_bit(EV_REL, dev->evbit);
 
 	__set_bit(BTN_LEFT, dev->keybit);
-	if (dmi_check_system(elantech_dmi_has_middle_button) ||
-			psmouse_matches_pnp_id(psmouse, middle_button_pnp_ids))
+	if (info->has_middle_button)
 		__set_bit(BTN_MIDDLE, dev->keybit);
 	__set_bit(BTN_RIGHT, dev->keybit);
 
@@ -1687,6 +1597,7 @@ static int elantech_query_info(struct psmouse *psmouse,
 			       struct elantech_device_info *info)
 {
 	unsigned char param[3];
+	unsigned char traces;
 
 	memset(info, 0, sizeof(*info));
 
@@ -1755,6 +1666,90 @@ static int elantech_query_info(struct psmouse *psmouse,
 		}
 	}
 
+	/* query range information */
+	switch (info->hw_version) {
+	case 1:
+		info->x_min = ETP_XMIN_V1;
+		info->y_min = ETP_YMIN_V1;
+		info->x_max = ETP_XMAX_V1;
+		info->y_max = ETP_YMAX_V1;
+		break;
+
+	case 2:
+		if (info->fw_version == 0x020800 ||
+		    info->fw_version == 0x020b00 ||
+		    info->fw_version == 0x020030) {
+			info->x_min = ETP_XMIN_V2;
+			info->y_min = ETP_YMIN_V2;
+			info->x_max = ETP_XMAX_V2;
+			info->y_max = ETP_YMAX_V2;
+		} else {
+			int i;
+			int fixed_dpi;
+
+			i = (info->fw_version > 0x020800 &&
+			     info->fw_version < 0x020900) ? 1 : 2;
+
+			if (info->send_cmd(psmouse, ETP_FW_ID_QUERY, param))
+				return -EINVAL;
+
+			fixed_dpi = param[1] & 0x10;
+
+			if (((info->fw_version >> 16) == 0x14) && fixed_dpi) {
+				if (info->send_cmd(psmouse, ETP_SAMPLE_QUERY, param))
+					return -EINVAL;
+
+				info->x_max = (info->capabilities[1] - i) * param[1] / 2;
+				info->y_max = (info->capabilities[2] - i) * param[2] / 2;
+			} else if (info->fw_version == 0x040216) {
+				info->x_max = 819;
+				info->y_max = 405;
+			} else if (info->fw_version == 0x040219 || info->fw_version == 0x040215) {
+				info->x_max = 900;
+				info->y_max = 500;
+			} else {
+				info->x_max = (info->capabilities[1] - i) * 64;
+				info->y_max = (info->capabilities[2] - i) * 64;
+			}
+		}
+		break;
+
+	case 3:
+		if (info->send_cmd(psmouse, ETP_FW_ID_QUERY, param))
+			return -EINVAL;
+
+		info->x_max = (0x0f & param[0]) << 8 | param[1];
+		info->y_max = (0xf0 & param[0]) << 4 | param[2];
+		break;
+
+	case 4:
+		if (info->send_cmd(psmouse, ETP_FW_ID_QUERY, param))
+			return -EINVAL;
+
+		info->x_max = (0x0f & param[0]) << 8 | param[1];
+		info->y_max = (0xf0 & param[0]) << 4 | param[2];
+		traces = info->capabilities[1];
+		if ((traces < 2) || (traces > info->x_max))
+			return -EINVAL;
+
+		info->width = info->x_max / (traces - 1);
+
+		/* column number of traces */
+		info->x_traces = traces;
+
+		/* row number of traces */
+		traces = info->capabilities[2];
+		if ((traces >= 2) && (traces <= info->y_max))
+			info->y_traces = traces;
+
+		break;
+	}
+
+	/* check for the middle button: DMI matching or new v4 firmwares */
+	info->has_middle_button = dmi_check_system(elantech_dmi_has_middle_button) ||
+				  (ETP_NEW_IC_SMBUS_HOST_NOTIFY(info->fw_version) &&
+				   !elantech_is_buttonpad(info));
+
 	return 0;
 }
 
@@ -1781,10 +1776,6 @@ static const char * const i2c_blacklist_pnp_ids[] = {
 	 * These are known to not be working properly as bits are missing
 	 * in elan_i2c.
 	 */
-	"LEN2131", /* ThinkPad P52 w/ NFC */
-	"LEN2132", /* ThinkPad P52 */
-	"LEN2133", /* ThinkPad P72 w/ NFC */
-	"LEN2134", /* ThinkPad P72 */
 	NULL
 };
 
@@ -1792,17 +1783,45 @@ static int elantech_create_smbus(struct psmouse *psmouse,
 				 struct elantech_device_info *info,
 				 bool leave_breadcrumbs)
 {
-	const struct property_entry i2c_properties[] = {
-		PROPERTY_ENTRY_BOOL("elan,trackpoint"),
-		{ },
-	};
+	struct property_entry i2c_props[11] = {};
 	struct i2c_board_info smbus_board = {
 		I2C_BOARD_INFO("elan_i2c", 0x15),
 		.flags = I2C_CLIENT_HOST_NOTIFY,
 	};
+	unsigned int idx = 0;
+
+	smbus_board.properties = i2c_props;
+
+	i2c_props[idx++] = PROPERTY_ENTRY_U32("touchscreen-size-x",
+						   info->x_max + 1);
+	i2c_props[idx++] = PROPERTY_ENTRY_U32("touchscreen-size-y",
+						   info->y_max + 1);
+	i2c_props[idx++] = PROPERTY_ENTRY_U32("touchscreen-min-x",
+						   info->x_min);
+	i2c_props[idx++] = PROPERTY_ENTRY_U32("touchscreen-min-y",
+						   info->y_min);
+	if (info->x_res)
+		i2c_props[idx++] = PROPERTY_ENTRY_U32("touchscreen-x-mm",
+						      (info->x_max + 1) / info->x_res);
+	if (info->y_res)
+		i2c_props[idx++] = PROPERTY_ENTRY_U32("touchscreen-y-mm",
+						      (info->y_max + 1) / info->y_res);
 
 	if (info->has_trackpoint)
-		smbus_board.properties = i2c_properties;
+		i2c_props[idx++] = PROPERTY_ENTRY_BOOL("elan,trackpoint");
+
+	if (info->has_middle_button)
+		i2c_props[idx++] = PROPERTY_ENTRY_BOOL("elan,middle-button");
+
+	if (info->x_traces)
+		i2c_props[idx++] = PROPERTY_ENTRY_U32("elan,x_traces",
+						      info->x_traces);
+	if (info->y_traces)
+		i2c_props[idx++] = PROPERTY_ENTRY_U32("elan,y_traces",
+						      info->y_traces);
+
+	if (elantech_is_buttonpad(info))
+		i2c_props[idx++] = PROPERTY_ENTRY_BOOL("elan,clickpad");
 
 	return psmouse_smbus_init(psmouse, &smbus_board, NULL, 0, false,
 				  leave_breadcrumbs);
diff --git a/drivers/input/mouse/elantech.h b/drivers/input/mouse/elantech.h
index 119727085a60..46343998522b 100644
--- a/drivers/input/mouse/elantech.h
+++ b/drivers/input/mouse/elantech.h
@@ -1,12 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Elantech Touchpad driver (v6)
  *
  * Copyright (C) 2007-2009 Arjan Opmeer <arjan@opmeer.net>
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
  * Trademarks are the property of their respective owners.
  */
 
@@ -144,8 +141,15 @@ struct elantech_device_info {
 	unsigned char debug;
 	unsigned char hw_version;
 	unsigned int fw_version;
+	unsigned int x_min;
+	unsigned int y_min;
+	unsigned int x_max;
+	unsigned int y_max;
 	unsigned int x_res;
 	unsigned int y_res;
+	unsigned int x_traces;
+	unsigned int y_traces;
+	unsigned int width;
 	unsigned int bus;
 	bool paritycheck;
 	bool jumpy_cursor;
@@ -153,6 +157,7 @@ struct elantech_device_info {
 	bool crc_enabled;
 	bool set_hw_resolution;
 	bool has_trackpoint;
+	bool has_middle_button;
 	int (*send_cmd)(struct psmouse *psmouse, unsigned char c,
 			unsigned char *param);
 };
diff --git a/drivers/input/mouse/gpio_mouse.c b/drivers/input/mouse/gpio_mouse.c
index a26d8be6f795..461436f6f087 100644
--- a/drivers/input/mouse/gpio_mouse.c
+++ b/drivers/input/mouse/gpio_mouse.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Driver for simulating a mouse on GPIO lines.
  *
  * Copyright (C) 2007 Atmel Corporation
  * Copyright (C) 2017 Linus Walleij <linus.walleij@linaro.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/module.h>
diff --git a/drivers/input/mouse/hgpk.c b/drivers/input/mouse/hgpk.c
index 015509e0b140..72a083f3fc4a 100644
--- a/drivers/input/mouse/hgpk.c
+++ b/drivers/input/mouse/hgpk.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * OLPC HGPK (XO-1) touchpad PS/2 mouse driver
  *
@@ -12,10 +13,6 @@
  * Copyright (c) 2003-2005 Peter Osterlund <petero2@telia.com>
  * Copyright (c) 2004 Dmitry Torokhov <dtor@mail.ru>
  * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 /*
diff --git a/drivers/input/mouse/lifebook.c b/drivers/input/mouse/lifebook.c
index a5765f747c02..bd9955730176 100644
--- a/drivers/input/mouse/lifebook.c
+++ b/drivers/input/mouse/lifebook.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Fujitsu B-series Lifebook PS/2 TouchScreen driver
  *
@@ -6,10 +7,6 @@
  *
  * TouchScreen detection, absolute mode setting and packet layout is taken from
  * Harald Hoyer's description of the device.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/input.h>
diff --git a/drivers/input/mouse/lifebook.h b/drivers/input/mouse/lifebook.h
index 0baf02a70a99..573f2ca1983d 100644
--- a/drivers/input/mouse/lifebook.h
+++ b/drivers/input/mouse/lifebook.h
@@ -1,11 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Fujitsu B-series Lifebook PS/2 TouchScreen driver
  *
  * Copyright (c) 2005 Vojtech Pavlik
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #ifndef _LIFEBOOK_H
diff --git a/drivers/input/mouse/logips2pp.c b/drivers/input/mouse/logips2pp.c
index 3d5637e6fa5f..ed5a848dba9d 100644
--- a/drivers/input/mouse/logips2pp.c
+++ b/drivers/input/mouse/logips2pp.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Logitech PS/2++ mouse driver
  *
  * Copyright (c) 1999-2003 Vojtech Pavlik <vojtech@suse.cz>
  * Copyright (c) 2003 Eric Wong <eric@yhbt.net>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/bitops.h>
diff --git a/drivers/input/mouse/logips2pp.h b/drivers/input/mouse/logips2pp.h
index bf629453e095..5f9344135f70 100644
--- a/drivers/input/mouse/logips2pp.h
+++ b/drivers/input/mouse/logips2pp.h
@@ -1,11 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Logitech PS/2++ mouse driver header
  *
  * Copyright (c) 2003 Vojtech Pavlik <vojtech@suse.cz>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #ifndef _LOGIPS2PP_H
diff --git a/drivers/input/mouse/navpoint.c b/drivers/input/mouse/navpoint.c
index d6e8f58a1de3..0b75248c8380 100644
--- a/drivers/input/mouse/navpoint.c
+++ b/drivers/input/mouse/navpoint.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Synaptics NavPoint (PXA27x SSP/SPI) driver.
  *
  * Copyright (C) 2012 Paul Parsons <lost.distance@yahoo.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index 94f7ca5ad077..527ae0b9a191 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * PS/2 mouse driver
  *
@@ -5,11 +6,6 @@
  * Copyright (c) 2003-2004 Dmitry Torokhov
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
 
 #define pr_fmt(fmt)		KBUILD_MODNAME ": " fmt
 #define psmouse_fmt(fmt)	fmt
diff --git a/drivers/input/mouse/psmouse-smbus.c b/drivers/input/mouse/psmouse-smbus.c
index 852d4b486ddb..027efdd2b2ad 100644
--- a/drivers/input/mouse/psmouse-smbus.c
+++ b/drivers/input/mouse/psmouse-smbus.c
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2017 Red Hat, Inc
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #define pr_fmt(fmt)		KBUILD_MODNAME ": " fmt
diff --git a/drivers/input/mouse/pxa930_trkball.c b/drivers/input/mouse/pxa930_trkball.c
index 9b4d9a59e229..87bac8cff6f7 100644
--- a/drivers/input/mouse/pxa930_trkball.c
+++ b/drivers/input/mouse/pxa930_trkball.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * PXA930 track ball mouse driver
  *
  * Copyright (C) 2007 Marvell International Ltd.
  * 2008-02-28: Yong Yao <yaoyong@marvell.com>
  *             initial version
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
  */
 
 #include <linux/input.h>
diff --git a/drivers/input/mouse/rpcmouse.c b/drivers/input/mouse/rpcmouse.c
index 21c60fea5d31..6774029e0a1a 100644
--- a/drivers/input/mouse/rpcmouse.c
+++ b/drivers/input/mouse/rpcmouse.c
@@ -1,15 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  Acorn RiscPC mouse driver for Linux/ARM
  *
  *  Copyright (c) 2000-2002 Vojtech Pavlik
  *  Copyright (C) 1996-2002 Russell King
- *
  */
 
 /*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  *
  * This handles the Acorn RiscPCs mouse.  We basically have a couple of
  * hardware registers that track the sensor count for the X-Y movement and
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index b6da0c1267e3..b1956ed4c0dd 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Synaptics TouchPad PS/2 mouse driver
  *
@@ -16,10 +17,6 @@
  *   Copyright (c) 1998-2000 Bruce Kalk <kall@compass.com>
  *     code for the special synaptics commands (from the tpconfig-source)
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
  * Trademarks are the property of their respective owners.
  */
 
@@ -176,9 +173,13 @@ static const char * const smbus_pnp_ids[] = {
 	"LEN0072", /* X1 Carbon Gen 5 (2017) - Elan/ALPS trackpoint */
 	"LEN0073", /* X1 Carbon G5 (Elantech) */
 	"LEN0092", /* X1 Carbon 6 */
+	"LEN0093", /* T480 */
 	"LEN0096", /* X280 */
 	"LEN0097", /* X280 -> ALPS trackpoint */
+	"LEN009b", /* T580 */
 	"LEN200f", /* T450s */
+	"LEN2054", /* E480 */
+	"LEN2055", /* E580 */
 	"SYN3052", /* HP EliteBook 840 G4 */
 	"SYN3221", /* HP 15-ay000 */
 	NULL
@@ -705,7 +706,7 @@ static void synaptics_pt_create(struct psmouse *psmouse)
 
 	serio->id.type = SERIO_PS_PSTHRU;
 	strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name));
-	strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name));
+	strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->phys));
 	serio->write = synaptics_pt_write;
 	serio->start = synaptics_pt_start;
 	serio->stop = synaptics_pt_stop;
diff --git a/drivers/input/mouse/synaptics.h b/drivers/input/mouse/synaptics.h
index fc00e005c611..08533d1b1b16 100644
--- a/drivers/input/mouse/synaptics.h
+++ b/drivers/input/mouse/synaptics.h
@@ -1,9 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Synaptics TouchPad PS/2 mouse driver
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #ifndef _SYNAPTICS_H
diff --git a/drivers/input/mouse/touchkit_ps2.h b/drivers/input/mouse/touchkit_ps2.h
index 2efe9ea29d0c..5acb76464a5b 100644
--- a/drivers/input/mouse/touchkit_ps2.h
+++ b/drivers/input/mouse/touchkit_ps2.h
@@ -1,12 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /* ----------------------------------------------------------------------------
  * touchkit_ps2.h  --  Driver for eGalax TouchKit PS/2 Touchscreens
  *
  * Copyright (C) 2005 by Stefan Lucke
  * Copyright (c) 2005 Vojtech Pavlik
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #ifndef _TOUCHKIT_PS2_H
diff --git a/drivers/input/mouse/trackpoint.c b/drivers/input/mouse/trackpoint.c
index 6590d10f166f..3eefee2ee2a1 100644
--- a/drivers/input/mouse/trackpoint.c
+++ b/drivers/input/mouse/trackpoint.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Stephen Evanchik <evanchsa@gmail.com>
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
  * Trademarks are the property of their respective owners.
  */
 
diff --git a/drivers/input/mouse/trackpoint.h b/drivers/input/mouse/trackpoint.h
index 10a039148234..77110f3ec21d 100644
--- a/drivers/input/mouse/trackpoint.h
+++ b/drivers/input/mouse/trackpoint.h
@@ -1,11 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * IBM TrackPoint PS/2 mouse driver
  *
  * Stephen Evanchik <evanchsa@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #ifndef _TRACKPOINT_H
@@ -161,7 +158,8 @@ struct trackpoint_data {
 #ifdef CONFIG_MOUSE_PS2_TRACKPOINT
 int trackpoint_detect(struct psmouse *psmouse, bool set_properties);
 #else
-inline int trackpoint_detect(struct psmouse *psmouse, bool set_properties)
+static inline int trackpoint_detect(struct psmouse *psmouse,
+				    bool set_properties)
 {
 	return -ENOSYS;
 }
diff --git a/drivers/input/mouse/vmmouse.c b/drivers/input/mouse/vmmouse.c
index 1ae5c1ef3f5b..871e5b5ab129 100644
--- a/drivers/input/mouse/vmmouse.c
+++ b/drivers/input/mouse/vmmouse.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Driver for Virtual PS/2 Mouse on VMware and QEMU hypervisors.
  *
  * Copyright (C) 2014, VMware, Inc. All Rights Reserved.
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
  * Twin device code is hugely inspired by the ALPS driver.
  * Authors:
  *   Dmitry Torokhov <dmitry.torokhov@gmail.com>
diff --git a/drivers/input/mouse/vmmouse.h b/drivers/input/mouse/vmmouse.h
index 6f126017a24c..774549a12930 100644
--- a/drivers/input/mouse/vmmouse.h
+++ b/drivers/input/mouse/vmmouse.h
@@ -1,11 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Driver for Virtual PS/2 Mouse on VMware and QEMU hypervisors.
  *
  * Copyright (C) 2014, VMware, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #ifndef _VMMOUSE_H
diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
index 412fa71245af..505c562a5daa 100644
--- a/drivers/input/mousedev.c
+++ b/drivers/input/mousedev.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Input driver to ExplorerPS/2 device driver module.
  *
  * Copyright (c) 1999-2002 Vojtech Pavlik
  * Copyright (c) 2004      Dmitry Torokhov
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -561,7 +558,7 @@ static int mousedev_open(struct inode *inode, struct file *file)
 		goto err_free_client;
 
 	file->private_data = client;
-	nonseekable_open(inode, file);
+	stream_open(inode, file);
 
 	return 0;
 
diff --git a/drivers/input/rmi4/rmi_2d_sensor.c b/drivers/input/rmi4/rmi_2d_sensor.c
index 8eeffa066022..ea549efe4bc4 100644
--- a/drivers/input/rmi4/rmi_2d_sensor.c
+++ b/drivers/input/rmi4/rmi_2d_sensor.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2011-2016 Synaptics Incorporated
  * Copyright (c) 2011 Unixphere
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/input/rmi4/rmi_2d_sensor.h b/drivers/input/rmi4/rmi_2d_sensor.h
index c871bef4dac0..7d335d809710 100644
--- a/drivers/input/rmi4/rmi_2d_sensor.h
+++ b/drivers/input/rmi4/rmi_2d_sensor.h
@@ -1,10 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (c) 2011-2016 Synaptics Incorporated
  * Copyright (c) 2011 Unixphere
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #ifndef _RMI_2D_SENSOR_H
diff --git a/drivers/input/rmi4/rmi_bus.c b/drivers/input/rmi4/rmi_bus.c
index bd0d5ff01b08..af706a583656 100644
--- a/drivers/input/rmi4/rmi_bus.c
+++ b/drivers/input/rmi4/rmi_bus.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2011-2016 Synaptics Incorporated
  * Copyright (c) 2011 Unixphere
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/input/rmi4/rmi_bus.h b/drivers/input/rmi4/rmi_bus.h
index 96383eab41ba..25df6320f9f1 100644
--- a/drivers/input/rmi4/rmi_bus.h
+++ b/drivers/input/rmi4/rmi_bus.h
@@ -1,10 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (c) 2011-2016 Synaptics Incorporated
  * Copyright (c) 2011 Unixphere
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #ifndef _RMI_BUS_H
diff --git a/drivers/input/rmi4/rmi_driver.c b/drivers/input/rmi4/rmi_driver.c
index 7fb358f96195..772493b1f665 100644
--- a/drivers/input/rmi4/rmi_driver.c
+++ b/drivers/input/rmi4/rmi_driver.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2011-2016 Synaptics Incorporated
  * Copyright (c) 2011 Unixphere
@@ -8,10 +9,6 @@
  *
  * http://www.synaptics.com/sites/default/files/
  *      511-000136-01-Rev-E-RMI4-Interfacing-Guide.pdf
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/bitmap.h>
diff --git a/drivers/input/rmi4/rmi_driver.h b/drivers/input/rmi4/rmi_driver.h
index d31793ae83f0..65bfaa95e193 100644
--- a/drivers/input/rmi4/rmi_driver.h
+++ b/drivers/input/rmi4/rmi_driver.h
@@ -1,10 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (c) 2011-2016 Synaptics Incorporated
  * Copyright (c) 2011 Unixphere
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #ifndef _RMI_DRIVER_H
diff --git a/drivers/input/rmi4/rmi_f01.c b/drivers/input/rmi4/rmi_f01.c
index 4edaa14fe878..e623c956376e 100644
--- a/drivers/input/rmi4/rmi_f01.c
+++ b/drivers/input/rmi4/rmi_f01.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2011-2016 Synaptics Incorporated
  * Copyright (c) 2011 Unixphere
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/input/rmi4/rmi_f03.c b/drivers/input/rmi4/rmi_f03.c
index aaa1edc95522..c194b1664b10 100644
--- a/drivers/input/rmi4/rmi_f03.c
+++ b/drivers/input/rmi4/rmi_f03.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2015-2016 Red Hat
  * Copyright (C) 2015 Lyude Paul <thatslyude@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/input/rmi4/rmi_f11.c b/drivers/input/rmi4/rmi_f11.c
index 93901ebd122a..f28a7158b2ef 100644
--- a/drivers/input/rmi4/rmi_f11.c
+++ b/drivers/input/rmi4/rmi_f11.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2011-2015 Synaptics Incorporated
  * Copyright (c) 2011 Unixphere
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/input/rmi4/rmi_f12.c b/drivers/input/rmi4/rmi_f12.c
index 5c7f48915779..d20a5d6780d1 100644
--- a/drivers/input/rmi4/rmi_f12.c
+++ b/drivers/input/rmi4/rmi_f12.c
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2012-2016 Synaptics Incorporated
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 #include <linux/input.h>
 #include <linux/input/mt.h>
@@ -73,7 +70,6 @@ static int rmi_f12_read_sensor_tuning(struct f12_data *f12)
 	int pitch_y = 0;
 	int rx_receivers = 0;
 	int tx_receivers = 0;
-	int sensor_flags = 0;
 
 	item = rmi_get_register_desc_item(&f12->control_reg_desc, 8);
 	if (!item) {
@@ -129,10 +125,9 @@ static int rmi_f12_read_sensor_tuning(struct f12_data *f12)
 		offset += 2;
 	}
 
-	if (rmi_register_desc_has_subpacket(item, 4)) {
-		sensor_flags = buf[offset];
+	/* Skip over sensor flags */
+	if (rmi_register_desc_has_subpacket(item, 4))
 		offset += 1;
-	}
 
 	sensor->x_mm = (pitch_x * rx_receivers) >> 12;
 	sensor->y_mm = (pitch_y * tx_receivers) >> 12;
diff --git a/drivers/input/rmi4/rmi_f30.c b/drivers/input/rmi4/rmi_f30.c
index 5e3ed5ac0c3e..a90dad1d9ac7 100644
--- a/drivers/input/rmi4/rmi_f30.c
+++ b/drivers/input/rmi4/rmi_f30.c
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2012-2016 Synaptics Incorporated
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/input/rmi4/rmi_f34.c b/drivers/input/rmi4/rmi_f34.c
index 87a7d4ba382d..e5dca9868f87 100644
--- a/drivers/input/rmi4/rmi_f34.c
+++ b/drivers/input/rmi4/rmi_f34.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2007-2016, Synaptics Incorporated
  * Copyright (C) 2016 Zodiac Inflight Innovations
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/input/rmi4/rmi_f34.h b/drivers/input/rmi4/rmi_f34.h
index 32c4e9581c68..99faa8c2269d 100644
--- a/drivers/input/rmi4/rmi_f34.h
+++ b/drivers/input/rmi4/rmi_f34.h
@@ -1,10 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (c) 2007-2016, Synaptics Incorporated
  * Copyright (C) 2016 Zodiac Inflight Innovations
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #ifndef _RMI_F34_H
diff --git a/drivers/input/rmi4/rmi_f34v7.c b/drivers/input/rmi4/rmi_f34v7.c
index 3991d2943660..a4cabf52740c 100644
--- a/drivers/input/rmi4/rmi_f34v7.c
+++ b/drivers/input/rmi4/rmi_f34v7.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2016, Zodiac Inflight Innovations
  * Copyright (c) 2007-2016, Synaptics Incorporated
  * Copyright (C) 2012 Alexandra Chin <alexandra.chin@tw.synaptics.com>
  * Copyright (C) 2012 Scott Lin <scott.lin@tw.synaptics.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/bitops.h>
diff --git a/drivers/input/rmi4/rmi_f54.c b/drivers/input/rmi4/rmi_f54.c
index 516fea06ed59..710b02595486 100644
--- a/drivers/input/rmi4/rmi_f54.c
+++ b/drivers/input/rmi4/rmi_f54.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2012-2015 Synaptics Incorporated
  * Copyright (C) 2016 Zodiac Inflight Innovations
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/input/rmi4/rmi_f55.c b/drivers/input/rmi4/rmi_f55.c
index 37390ca6a924..488adaca4dd0 100644
--- a/drivers/input/rmi4/rmi_f55.c
+++ b/drivers/input/rmi4/rmi_f55.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2012-2015 Synaptics Incorporated
  * Copyright (C) 2016 Zodiac Inflight Innovations
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/bitops.h>
diff --git a/drivers/input/rmi4/rmi_i2c.c b/drivers/input/rmi4/rmi_i2c.c
index d4b3f9d0dc2e..a95c2c9bcab4 100644
--- a/drivers/input/rmi4/rmi_i2c.c
+++ b/drivers/input/rmi4/rmi_i2c.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2011-2016 Synaptics Incorporated
  * Copyright (c) 2011 Unixphere
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/i2c.h>
diff --git a/drivers/input/rmi4/rmi_smbus.c b/drivers/input/rmi4/rmi_smbus.c
index b6ccf39c6a7b..2407ea43de59 100644
--- a/drivers/input/rmi4/rmi_smbus.c
+++ b/drivers/input/rmi4/rmi_smbus.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2015 - 2016 Red Hat, Inc
  * Copyright (c) 2011, 2012 Synaptics Incorporated
  * Copyright (c) 2011 Unixphere
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/input/rmi4/rmi_spi.c b/drivers/input/rmi4/rmi_spi.c
index 33b8c6e7ac0a..27b68dc79b18 100644
--- a/drivers/input/rmi4/rmi_spi.c
+++ b/drivers/input/rmi4/rmi_spi.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2011-2016 Synaptics Incorporated
  * Copyright (c) 2011 Unixphere
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/input/serio/altera_ps2.c b/drivers/input/serio/altera_ps2.c
index 131d7826dc6b..379e9240c2b3 100644
--- a/drivers/input/serio/altera_ps2.c
+++ b/drivers/input/serio/altera_ps2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Altera University Program PS2 controller driver
  *
@@ -5,10 +6,6 @@
  *
  * Based on sa1111ps2.c, which is:
  * Copyright (C) 2002 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/module.h>
diff --git a/drivers/input/serio/ams_delta_serio.c b/drivers/input/serio/ams_delta_serio.c
index f8663d7891f2..1c0be299f179 100644
--- a/drivers/input/serio/ams_delta_serio.c
+++ b/drivers/input/serio/ams_delta_serio.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  Amstrad E3 (Delta) keyboard port driver
  *
  *  Copyright (c) 2006 Matt Callow
  *  Copyright (c) 2010 Janusz Krzysztofik
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
  * Thanks to Cliff Lawson for his help
  *
  * The Amstrad Delta keyboard (aka mailboard) uses normal PC-AT style serial
diff --git a/drivers/input/serio/arc_ps2.c b/drivers/input/serio/arc_ps2.c
index 99e57a418753..443194a2b9e3 100644
--- a/drivers/input/serio/arc_ps2.c
+++ b/drivers/input/serio/arc_ps2.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
  * Driver is originally developed by Pavel Sokolov <psokolov@synopsys.com>
  */
 
diff --git a/drivers/input/serio/hyperv-keyboard.c b/drivers/input/serio/hyperv-keyboard.c
index 8e457e50f837..88ae7c2ac3c8 100644
--- a/drivers/input/serio/hyperv-keyboard.c
+++ b/drivers/input/serio/hyperv-keyboard.c
@@ -75,8 +75,8 @@ struct synth_kbd_keystroke {
 
 #define HK_MAXIMUM_MESSAGE_SIZE 256
 
-#define KBD_VSC_SEND_RING_BUFFER_SIZE		(10 * PAGE_SIZE)
-#define KBD_VSC_RECV_RING_BUFFER_SIZE		(10 * PAGE_SIZE)
+#define KBD_VSC_SEND_RING_BUFFER_SIZE		(40 * 1024)
+#define KBD_VSC_RECV_RING_BUFFER_SIZE		(40 * 1024)
 
 #define XTKBD_EMUL0     0xe0
 #define XTKBD_EMUL1     0xe1
diff --git a/drivers/input/serio/i8042-io.h b/drivers/input/serio/i8042-io.h
index 34da81c006b6..da0bf85321de 100644
--- a/drivers/input/serio/i8042-io.h
+++ b/drivers/input/serio/i8042-io.h
@@ -1,11 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 #ifndef _I8042_IO_H
 #define _I8042_IO_H
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
 
 /*
  * Names.
diff --git a/drivers/input/serio/i8042-ip22io.h b/drivers/input/serio/i8042-ip22io.h
index 08a1c10a1448..6c7efa01745c 100644
--- a/drivers/input/serio/i8042-ip22io.h
+++ b/drivers/input/serio/i8042-ip22io.h
@@ -1,14 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 #ifndef _I8042_IP22_H
 #define _I8042_IP22_H
 
 #include <asm/sgi/ioc.h>
 #include <asm/sgi/ip22.h>
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
 
 /*
  * Names.
diff --git a/drivers/input/serio/i8042-jazzio.h b/drivers/input/serio/i8042-jazzio.h
index 13fd7108eb28..4c2a96f9128c 100644
--- a/drivers/input/serio/i8042-jazzio.h
+++ b/drivers/input/serio/i8042-jazzio.h
@@ -1,13 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 #ifndef _I8042_JAZZ_H
 #define _I8042_JAZZ_H
 
 #include <asm/jazz.h>
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
 
 /*
  * Names.
diff --git a/drivers/input/serio/i8042-ppcio.h b/drivers/input/serio/i8042-ppcio.h
index 1aabea43329e..391f94d9e47d 100644
--- a/drivers/input/serio/i8042-ppcio.h
+++ b/drivers/input/serio/i8042-ppcio.h
@@ -1,11 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 #ifndef _I8042_PPCIO_H
 #define _I8042_PPCIO_H
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
 
 #if defined(CONFIG_WALNUT)
 
diff --git a/drivers/input/serio/i8042-snirm.h b/drivers/input/serio/i8042-snirm.h
index 409a9341143d..4b7136704338 100644
--- a/drivers/input/serio/i8042-snirm.h
+++ b/drivers/input/serio/i8042-snirm.h
@@ -1,13 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 #ifndef _I8042_SNIRM_H
 #define _I8042_SNIRM_H
 
 #include <asm/sni.h>
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
 
 /*
  * Names.
diff --git a/drivers/input/serio/i8042-unicore32io.h b/drivers/input/serio/i8042-unicore32io.h
index 455747552f85..50bb3ed94b56 100644
--- a/drivers/input/serio/i8042-unicore32io.h
+++ b/drivers/input/serio/i8042-unicore32io.h
@@ -1,12 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Code specific to PKUnity SoC and UniCore ISA
  *
  *	Maintained by GUAN Xue-tao <gxt@mprc.pku.edu.cn>
  *	Copyright (C) 2001-2011 Guan Xuetao
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 #ifndef _I8042_UNICORE32_H
 #define _I8042_UNICORE32_H
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 136f6e7bf797..dc974c288e88 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -1,11 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 #ifndef _I8042_X86IA64IO_H
 #define _I8042_X86IA64IO_H
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
 
 #ifdef CONFIG_X86
 #include <asm/x86_init.h>
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index 6462f1798fbb..b695094290ab 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  i8042 keyboard and mouse controller driver for Linux
  *
  *  Copyright (c) 1999-2004 Vojtech Pavlik
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
@@ -1410,7 +1406,7 @@ static void __init i8042_register_ports(void)
 		 * behavior on many platforms using suspend-to-RAM (ACPI S3)
 		 * by default.
 		 */
-		if (pm_suspend_via_s2idle() && i == I8042_KBD_PORT_NO)
+		if (pm_suspend_default_s2idle() && i == I8042_KBD_PORT_NO)
 			device_set_wakeup_enable(&serio->dev, true);
 	}
 }
diff --git a/drivers/input/serio/i8042.h b/drivers/input/serio/i8042.h
index 1db0a40c9bab..38dc27ad3c18 100644
--- a/drivers/input/serio/i8042.h
+++ b/drivers/input/serio/i8042.h
@@ -1,13 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 #ifndef _I8042_H
 #define _I8042_H
 
 
 /*
  *  Copyright (c) 1999-2002 Vojtech Pavlik
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 /*
diff --git a/drivers/input/serio/libps2.c b/drivers/input/serio/libps2.c
index 22b8e05aa36c..a8c94a940a79 100644
--- a/drivers/input/serio/libps2.c
+++ b/drivers/input/serio/libps2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * PS/2 driver library
  *
@@ -5,11 +6,6 @@
  * Copyright (c) 2004 Dmitry Torokhov
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
 
 #include <linux/delay.h>
 #include <linux/module.h>
diff --git a/drivers/input/serio/maceps2.c b/drivers/input/serio/maceps2.c
index e365c5f4cbc9..629e15089c21 100644
--- a/drivers/input/serio/maceps2.c
+++ b/drivers/input/serio/maceps2.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * SGI O2 MACE PS2 controller driver for linux
  *
  * Copyright (C) 2002 Vivien Chappelier
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation
  */
 #include <linux/module.h>
 #include <linux/init.h>
diff --git a/drivers/input/serio/parkbd.c b/drivers/input/serio/parkbd.c
index 1edfac78d4ac..ddbbd4afb4a2 100644
--- a/drivers/input/serio/parkbd.c
+++ b/drivers/input/serio/parkbd.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  Parallel port to Keyboard port adapter driver for Linux
  *
  *  Copyright (c) 1999-2004 Vojtech Pavlik
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
 
 /*
  * To connect an AT or XT keyboard to the parallel port, a fairly simple adapter
diff --git a/drivers/input/serio/ps2-gpio.c b/drivers/input/serio/ps2-gpio.c
index 5e8d8384aa2a..e0f18469d01b 100644
--- a/drivers/input/serio/ps2-gpio.c
+++ b/drivers/input/serio/ps2-gpio.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * GPIO based serio bus driver for bit banging the PS/2 protocol
  *
  * Author: Danilo Krummrich <danilokrummrich@dk-develop.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/gpio/consumer.h>
diff --git a/drivers/input/serio/ps2mult.c b/drivers/input/serio/ps2mult.c
index a76fb64f03db..0071dd5ebcc2 100644
--- a/drivers/input/serio/ps2mult.c
+++ b/drivers/input/serio/ps2mult.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * TQC PS/2 Multiplexer driver
  *
  * Copyright (C) 2010 Dmitry Eremin-Solenikov
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 
diff --git a/drivers/input/serio/serio_raw.c b/drivers/input/serio/serio_raw.c
index 17b7fbecd9fe..e9647ebff187 100644
--- a/drivers/input/serio/serio_raw.c
+++ b/drivers/input/serio/serio_raw.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Raw serio device providing access to a raw byte stream from underlying
  * serio port. Closely emulates behavior of pre-2.6 /dev/psaux device
  *
  * Copyright (c) 2004 Dmitry Torokhov
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/kref.h>
diff --git a/drivers/input/serio/serport.c b/drivers/input/serio/serport.c
index 5977b8a34ebe..8ac970a423de 100644
--- a/drivers/input/serio/serport.c
+++ b/drivers/input/serio/serport.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Input device TTY line discipline
  *
@@ -7,11 +8,6 @@
  * 'serial io port' abstraction that the input device drivers use.
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
 
 #include <linux/uaccess.h>
 #include <linux/kernel.h>
diff --git a/drivers/input/sparse-keymap.c b/drivers/input/sparse-keymap.c
index 0cad5e7c559b..530fd15eaeca 100644
--- a/drivers/input/sparse-keymap.c
+++ b/drivers/input/sparse-keymap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Generic support for sparse keymaps
  *
@@ -7,10 +8,6 @@
  * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
  * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
  * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/input.h>
diff --git a/drivers/input/tablet/gtco.c b/drivers/input/tablet/gtco.c
index 4b8b9d7aa75e..35031228a6d0 100644
--- a/drivers/input/tablet/gtco.c
+++ b/drivers/input/tablet/gtco.c
@@ -78,6 +78,7 @@ Scott Hill shill@gtcocalcomp.com
 
 /* Max size of a single report */
 #define REPORT_MAX_SIZE       10
+#define MAX_COLLECTION_LEVELS  10
 
 
 /* Bitmask whether pen is in range */
@@ -223,8 +224,7 @@ static void parse_hid_report_descriptor(struct gtco *device, char * report,
 	char  maintype = 'x';
 	char  globtype[12];
 	int   indent = 0;
-	char  indentstr[10] = "";
-
+	char  indentstr[MAX_COLLECTION_LEVELS + 1] = { 0 };
 
 	dev_dbg(ddev, "======>>>>>>PARSE<<<<<<======\n");
 
@@ -350,6 +350,13 @@ static void parse_hid_report_descriptor(struct gtco *device, char * report,
 			case TAG_MAIN_COL_START:
 				maintype = 'S';
 
+				if (indent == MAX_COLLECTION_LEVELS) {
+					dev_err(ddev, "Collection level %d would exceed limit of %d\n",
+						indent + 1,
+						MAX_COLLECTION_LEVELS);
+					break;
+				}
+
 				if (data == 0) {
 					dev_dbg(ddev, "======>>>>>> Physical\n");
 					strcpy(globtype, "Physical");
@@ -369,8 +376,15 @@ static void parse_hid_report_descriptor(struct gtco *device, char * report,
 				break;
 
 			case TAG_MAIN_COL_END:
-				dev_dbg(ddev, "<<<<<<======\n");
 				maintype = 'E';
+
+				if (indent == 0) {
+					dev_err(ddev, "Collection level already at zero\n");
+					break;
+				}
+
+				dev_dbg(ddev, "<<<<<<======\n");
+
 				indent--;
 				for (x = 0; x < indent; x++)
 					indentstr[x] = '-';
diff --git a/drivers/input/touchscreen/88pm860x-ts.c b/drivers/input/touchscreen/88pm860x-ts.c
index 3486d9403805..1d1bbc8da949 100644
--- a/drivers/input/touchscreen/88pm860x-ts.c
+++ b/drivers/input/touchscreen/88pm860x-ts.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Touchscreen driver for Marvell 88PM860x
  *
  * Copyright (C) 2009 Marvell International Ltd.
  * 	Haojian Zhuang <haojian.zhuang@marvell.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 #include <linux/kernel.h>
 #include <linux/module.h>
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index a2f45aefce08..accbbe8d2966 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * ADS7846 based touchscreen and sensor driver
  *
@@ -12,10 +13,6 @@
  *	Copyright (C) 2002 MontaVista Software
  *	Copyright (C) 2004 Texas Instruments
  *	Copyright (C) 2005 Dirk Behme
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
  */
 #include <linux/types.h>
 #include <linux/hwmon.h>
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 19378f200c63..4a5f482cf1af 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -256,16 +256,6 @@ enum v4l_dbg_inputs {
 	MXT_V4L_INPUT_MAX,
 };
 
-static const struct v4l2_file_operations mxt_video_fops = {
-	.owner = THIS_MODULE,
-	.open = v4l2_fh_open,
-	.release = vb2_fop_release,
-	.unlocked_ioctl = video_ioctl2,
-	.read = vb2_fop_read,
-	.mmap = vb2_fop_mmap,
-	.poll = vb2_fop_poll,
-};
-
 enum mxt_suspend_mode {
 	MXT_SUSPEND_DEEP_SLEEP	= 0,
 	MXT_SUSPEND_T9_CTRL	= 1,
@@ -1521,7 +1511,8 @@ static int mxt_update_cfg(struct mxt_data *data, const struct firmware *fw)
 		} else if (config_crc == data->config_crc) {
 			dev_dbg(dev, "Config CRC 0x%06X: OK\n",
 				 data->config_crc);
-			return 0;
+			ret = 0;
+			goto release_raw;
 		} else {
 			dev_info(dev, "Config CRC 0x%06X: does not match file 0x%06X\n",
 				 data->config_crc, config_crc);
@@ -2218,6 +2209,16 @@ recheck:
 }
 
 #ifdef CONFIG_TOUCHSCREEN_ATMEL_MXT_T37
+static const struct v4l2_file_operations mxt_video_fops = {
+	.owner = THIS_MODULE,
+	.open = v4l2_fh_open,
+	.release = vb2_fop_release,
+	.unlocked_ioctl = video_ioctl2,
+	.read = vb2_fop_read,
+	.mmap = vb2_fop_mmap,
+	.poll = vb2_fop_poll,
+};
+
 static u16 mxt_get_debug_value(struct mxt_data *data, unsigned int x,
 			       unsigned int y)
 {
diff --git a/drivers/input/touchscreen/auo-pixcir-ts.c b/drivers/input/touchscreen/auo-pixcir-ts.c
index 8e48fbda487a..8e9f3b7b8180 100644
--- a/drivers/input/touchscreen/auo-pixcir-ts.c
+++ b/drivers/input/touchscreen/auo-pixcir-ts.c
@@ -602,9 +602,8 @@ static int auo_pixcir_probe(struct i2c_client *client,
 		return error;
 	}
 
-	error = devm_add_action(&client->dev, auo_pixcir_reset, ts);
+	error = devm_add_action_or_reset(&client->dev, auo_pixcir_reset, ts);
 	if (error) {
-		auo_pixcir_reset(ts);
 		dev_err(&client->dev, "failed to register reset action, %d\n",
 			error);
 		return error;
diff --git a/drivers/input/touchscreen/da9034-ts.c b/drivers/input/touchscreen/da9034-ts.c
index 8264822dc4b9..2943f6a58388 100644
--- a/drivers/input/touchscreen/da9034-ts.c
+++ b/drivers/input/touchscreen/da9034-ts.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Touchscreen driver for Dialog Semiconductor DA9034
  *
@@ -5,10 +6,6 @@
  *	Fengwei Yin <fengwei.yin@marvell.com>
  *	Bin Yang  <bin.yang@marvell.com>
  *	Eric Miao <eric.miao@marvell.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/module.h>
diff --git a/drivers/input/touchscreen/dynapro.c b/drivers/input/touchscreen/dynapro.c
index 5b1b66fffbe3..dc07fca7c5ed 100644
--- a/drivers/input/touchscreen/dynapro.c
+++ b/drivers/input/touchscreen/dynapro.c
@@ -1,17 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Dynapro serial touchscreen driver
  *
  * Copyright (c) 2009 Tias Guns
  * Based on the inexio driver (c) Vojtech Pavlik and Dan Streetman and
  * Richard Lemon
- *
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
 
 /*
  * 2009/09/19 Tias Guns <tias@ulyssis.org>
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index c639ebce914c..3cc4341bbdff 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -27,6 +27,7 @@
 #include <linux/gpio/consumer.h>
 #include <linux/input/mt.h>
 #include <linux/input/touchscreen.h>
+#include <asm/unaligned.h>
 
 #define WORK_REGISTER_THRESHOLD		0x00
 #define WORK_REGISTER_REPORT_RATE	0x08
@@ -228,7 +229,6 @@ static irqreturn_t edt_ft5x06_ts_isr(int irq, void *dev_id)
 
 	for (i = 0; i < tsdata->max_support_points; i++) {
 		u8 *buf = &rdbuf[i * tplen + offset];
-		bool down;
 
 		type = buf[0] >> 6;
 		/* ignore Reserved events */
@@ -239,23 +239,19 @@ static irqreturn_t edt_ft5x06_ts_isr(int irq, void *dev_id)
 		if (tsdata->version == EDT_M06 && type == TOUCH_EVENT_DOWN)
 			continue;
 
-		x = ((buf[0] << 8) | buf[1]) & 0x0fff;
-		y = ((buf[2] << 8) | buf[3]) & 0x0fff;
+		x = get_unaligned_be16(buf) & 0x0fff;
+		y = get_unaligned_be16(buf + 2) & 0x0fff;
 		/* The FT5x26 send the y coordinate first */
 		if (tsdata->version == EV_FT)
 			swap(x, y);
 
 		id = (buf[2] >> 4) & 0x0f;
-		down = type != TOUCH_EVENT_UP;
 
 		input_mt_slot(tsdata->input, id);
-		input_mt_report_slot_state(tsdata->input, MT_TOOL_FINGER, down);
-
-		if (!down)
-			continue;
-
-		touchscreen_report_pos(tsdata->input, &tsdata->prop, x, y,
-				       true);
+		if (input_mt_report_slot_state(tsdata->input, MT_TOOL_FINGER,
+					       type != TOUCH_EVENT_UP))
+			touchscreen_report_pos(tsdata->input, &tsdata->prop,
+					       x, y, true);
 	}
 
 	input_mt_report_pointer_emulation(tsdata->input, true);
diff --git a/drivers/input/touchscreen/eeti_ts.c b/drivers/input/touchscreen/eeti_ts.c
index c6b85ba7f991..2e1404cd09ec 100644
--- a/drivers/input/touchscreen/eeti_ts.c
+++ b/drivers/input/touchscreen/eeti_ts.c
@@ -28,6 +28,7 @@ struct eeti_ts {
 	struct input_dev *input;
 	struct gpio_desc *attn_gpio;
 	struct touchscreen_properties props;
+	struct mutex mutex;
 	bool running;
 };
 
@@ -62,42 +63,80 @@ static void eeti_ts_report_event(struct eeti_ts *eeti, u8 *buf)
 	input_sync(eeti->input);
 }
 
+static int eeti_ts_read(struct eeti_ts *eeti)
+{
+	int len, error;
+	char buf[6];
+
+	len = i2c_master_recv(eeti->client, buf, sizeof(buf));
+	if (len != sizeof(buf)) {
+		error = len < 0 ? len : -EIO;
+		dev_err(&eeti->client->dev,
+			"failed to read touchscreen data: %d\n",
+			error);
+		return error;
+	}
+
+	/* Motion packet */
+	if (buf[0] & 0x80)
+		eeti_ts_report_event(eeti, buf);
+
+	return 0;
+}
+
 static irqreturn_t eeti_ts_isr(int irq, void *dev_id)
 {
 	struct eeti_ts *eeti = dev_id;
-	int len;
 	int error;
-	char buf[6];
+
+	mutex_lock(&eeti->mutex);
 
 	do {
-		len = i2c_master_recv(eeti->client, buf, sizeof(buf));
-		if (len != sizeof(buf)) {
-			error = len < 0 ? len : -EIO;
-			dev_err(&eeti->client->dev,
-				"failed to read touchscreen data: %d\n",
-				error);
+		/*
+		 * If we have attention GPIO, trust it. Otherwise we'll read
+		 * once and exit. We assume that in this case we are using
+		 * level triggered interrupt and it will get raised again
+		 * if/when there is more data.
+		 */
+		if (eeti->attn_gpio &&
+		    !gpiod_get_value_cansleep(eeti->attn_gpio)) {
 			break;
 		}
 
-		if (buf[0] & 0x80) {
-			/* Motion packet */
-			eeti_ts_report_event(eeti, buf);
-		}
-	} while (eeti->running &&
-		 eeti->attn_gpio && gpiod_get_value_cansleep(eeti->attn_gpio));
+		error = eeti_ts_read(eeti);
+		if (error)
+			break;
+
+	} while (eeti->running && eeti->attn_gpio);
 
+	mutex_unlock(&eeti->mutex);
 	return IRQ_HANDLED;
 }
 
 static void eeti_ts_start(struct eeti_ts *eeti)
 {
+	mutex_lock(&eeti->mutex);
+
 	eeti->running = true;
-	wmb();
 	enable_irq(eeti->client->irq);
+
+	/*
+	 * Kick the controller in case we are using edge interrupt and
+	 * we missed our edge while interrupt was disabled. We expect
+	 * the attention GPIO to be wired in this case.
+	 */
+	if (eeti->attn_gpio && gpiod_get_value_cansleep(eeti->attn_gpio))
+		eeti_ts_read(eeti);
+
+	mutex_unlock(&eeti->mutex);
 }
 
 static void eeti_ts_stop(struct eeti_ts *eeti)
 {
+	/*
+	 * Not locking here, just setting a flag and expect that the
+	 * interrupt thread will notice the flag eventually.
+	 */
 	eeti->running = false;
 	wmb();
 	disable_irq(eeti->client->irq);
@@ -140,6 +179,8 @@ static int eeti_ts_probe(struct i2c_client *client,
 		return -ENOMEM;
 	}
 
+	mutex_init(&eeti->mutex);
+
 	input = devm_input_allocate_device(dev);
 	if (!input) {
 		dev_err(dev, "Failed to allocate input device.\n");
diff --git a/drivers/input/touchscreen/egalax_ts_serial.c b/drivers/input/touchscreen/egalax_ts_serial.c
index 657bbae608c8..375922d3a6d1 100644
--- a/drivers/input/touchscreen/egalax_ts_serial.c
+++ b/drivers/input/touchscreen/egalax_ts_serial.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * EETI Egalax serial touchscreen driver
  *
@@ -8,11 +9,6 @@
  * Hampshire serial touchscreen driver (Copyright (c) 2010 Adam Bennett)
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
 
 #include <linux/errno.h>
 #include <linux/kernel.h>
diff --git a/drivers/input/touchscreen/elants_i2c.c b/drivers/input/touchscreen/elants_i2c.c
index f2cb23121833..d4ad24ea54c8 100644
--- a/drivers/input/touchscreen/elants_i2c.c
+++ b/drivers/input/touchscreen/elants_i2c.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Elan Microelectronics touch panels with I2C interface
  *
@@ -10,7 +11,6 @@
  *  Copyright (c) 2010-2012 Benjamin Tissoires <benjamin.tissoires@gmail.com>
  *  Copyright (c) 2010-2012 Ecole Nationale de l'Aviation Civile, France
  *
- *
  * This code is partly based on i2c-hid.c:
  *
  * Copyright (c) 2012 Benjamin Tissoires <benjamin.tissoires@gmail.com>
@@ -18,11 +18,6 @@
  * Copyright (c) 2012 Red Hat, Inc
  */
 
-/*
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- */
 
 #include <linux/module.h>
 #include <linux/input.h>
diff --git a/drivers/input/touchscreen/elo.c b/drivers/input/touchscreen/elo.c
index 7f2942f3cec6..d6772a2c2d09 100644
--- a/drivers/input/touchscreen/elo.c
+++ b/drivers/input/touchscreen/elo.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Elo serial touchscreen driver
  *
  * Copyright (c) 2004 Vojtech Pavlik
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
 
 /*
  * This driver can handle serial Elo touchscreens using either the Elo standard
diff --git a/drivers/input/touchscreen/exc3000.c b/drivers/input/touchscreen/exc3000.c
index 37437a53cd1a..e007e2e8f626 100644
--- a/drivers/input/touchscreen/exc3000.c
+++ b/drivers/input/touchscreen/exc3000.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Driver for I2C connected EETI EXC3000 multiple touch controller
  *
  * Copyright (C) 2017 Ahmet Inan <inan@distec.de>
  *
  * minimal implementation based on egalax_ts.c and egalax_i2c.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/bitops.h>
diff --git a/drivers/input/touchscreen/fujitsu_ts.c b/drivers/input/touchscreen/fujitsu_ts.c
index a0fbb454499d..3b0b8fccc3f0 100644
--- a/drivers/input/touchscreen/fujitsu_ts.c
+++ b/drivers/input/touchscreen/fujitsu_ts.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Fujitsu serial touchscreen driver
  *
  * Copyright (c) Dmitry Torokhov <dtor@mail.ru>
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
 
 #include <linux/errno.h>
 #include <linux/kernel.h>
diff --git a/drivers/input/touchscreen/hampshire.c b/drivers/input/touchscreen/hampshire.c
index eb052d559e54..5c4d877564ee 100644
--- a/drivers/input/touchscreen/hampshire.c
+++ b/drivers/input/touchscreen/hampshire.c
@@ -1,16 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Hampshire serial touchscreen driver
  *
  * Copyright (c) 2010 Adam Bennett
  * Based on the dynapro driver (c) Tias Guns
- *
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
 
 /*
  * 2010/04/08 Adam Bennett <abennett72@gmail.com>
diff --git a/drivers/input/touchscreen/hideep.c b/drivers/input/touchscreen/hideep.c
index f1cd4dd9a4a3..84fbbf415c43 100644
--- a/drivers/input/touchscreen/hideep.c
+++ b/drivers/input/touchscreen/hideep.c
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2012-2017 Hideep, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2
- * as published by the Free Software Foudation.
  */
 
 #include <linux/module.h>
diff --git a/drivers/input/touchscreen/htcpen.c b/drivers/input/touchscreen/htcpen.c
index 8fd909285877..2f261a34f9c2 100644
--- a/drivers/input/touchscreen/htcpen.c
+++ b/drivers/input/touchscreen/htcpen.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * HTC Shift touchscreen driver
  *
  * Copyright (C) 2008 Pau Oliva Fora <pof@eslack.org>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
  */
 
 #include <linux/errno.h>
diff --git a/drivers/input/touchscreen/imx6ul_tsc.c b/drivers/input/touchscreen/imx6ul_tsc.c
index c10fc594f94d..e04eecd65bbb 100644
--- a/drivers/input/touchscreen/imx6ul_tsc.c
+++ b/drivers/input/touchscreen/imx6ul_tsc.c
@@ -364,8 +364,6 @@ static int imx6ul_tsc_probe(struct platform_device *pdev)
 	struct device_node *np = pdev->dev.of_node;
 	struct imx6ul_tsc *tsc;
 	struct input_dev *input_dev;
-	struct resource *tsc_mem;
-	struct resource *adc_mem;
 	int err;
 	int tsc_irq;
 	int adc_irq;
@@ -403,16 +401,14 @@ static int imx6ul_tsc_probe(struct platform_device *pdev)
 		return err;
 	}
 
-	tsc_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	tsc->tsc_regs = devm_ioremap_resource(&pdev->dev, tsc_mem);
+	tsc->tsc_regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(tsc->tsc_regs)) {
 		err = PTR_ERR(tsc->tsc_regs);
 		dev_err(&pdev->dev, "failed to remap tsc memory: %d\n", err);
 		return err;
 	}
 
-	adc_mem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	tsc->adc_regs = devm_ioremap_resource(&pdev->dev, adc_mem);
+	tsc->adc_regs = devm_platform_ioremap_resource(pdev, 1);
 	if (IS_ERR(tsc->adc_regs)) {
 		err = PTR_ERR(tsc->adc_regs);
 		dev_err(&pdev->dev, "failed to remap adc memory: %d\n", err);
diff --git a/drivers/input/touchscreen/inexio.c b/drivers/input/touchscreen/inexio.c
index 13bd0bf580a7..1d7e4c3966ce 100644
--- a/drivers/input/touchscreen/inexio.c
+++ b/drivers/input/touchscreen/inexio.c
@@ -1,16 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * iNexio serial touchscreen driver
  *
  * Copyright (c) 2008 Richard Lemon
  * Based on the mtouch driver (c) Vojtech Pavlik and Dan Streetman
- *
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
 
 /*
  * 2008/06/19 Richard Lemon <richard@codelemon.com>
diff --git a/drivers/input/touchscreen/ipaq-micro-ts.c b/drivers/input/touchscreen/ipaq-micro-ts.c
index 33c134820ef9..5c3977e1af6f 100644
--- a/drivers/input/touchscreen/ipaq-micro-ts.c
+++ b/drivers/input/touchscreen/ipaq-micro-ts.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  *
  * h3600 atmel micro companion support, touchscreen subdevice
  * Author : Alessandro Gardich <gremlin@gremlin.it>
  * Author : Dmitry Artamonow <mad_soft@inbox.ru>
  * Author : Linus Walleij <linus.walleij@linaro.org>
- *
  */
 
 #include <asm/byteorder.h>
diff --git a/drivers/input/touchscreen/iqs5xx.c b/drivers/input/touchscreen/iqs5xx.c
index b832fe062645..5875bb1099a8 100644
--- a/drivers/input/touchscreen/iqs5xx.c
+++ b/drivers/input/touchscreen/iqs5xx.c
@@ -502,14 +502,6 @@ static int iqs5xx_axis_init(struct i2c_client *client)
 		input_set_capability(input, EV_ABS, ABS_MT_POSITION_Y);
 		input_set_capability(input, EV_ABS, ABS_MT_PRESSURE);
 
-		error = input_mt_init_slots(input,
-				IQS5XX_NUM_CONTACTS, INPUT_MT_DIRECT);
-		if (error) {
-			dev_err(&client->dev,
-				"Failed to initialize slots: %d\n", error);
-			return error;
-		}
-
 		input_set_drvdata(input, iqs5xx);
 		iqs5xx->input = input;
 	}
@@ -591,9 +583,19 @@ static int iqs5xx_axis_init(struct i2c_client *client)
 	if (error)
 		return error;
 
-	return iqs5xx_write_word(client,
-				 prop.swap_x_y ? IQS5XX_X_RES : IQS5XX_Y_RES,
-				 max_y);
+	error = iqs5xx_write_word(client,
+				  prop.swap_x_y ? IQS5XX_X_RES : IQS5XX_Y_RES,
+				  max_y);
+	if (error)
+		return error;
+
+	error = input_mt_init_slots(iqs5xx->input, IQS5XX_NUM_CONTACTS,
+				    INPUT_MT_DIRECT);
+	if (error)
+		dev_err(&client->dev, "Failed to initialize slots: %d\n",
+			error);
+
+	return error;
 }
 
 static int iqs5xx_dev_init(struct i2c_client *client)
@@ -1054,8 +1056,6 @@ static int iqs5xx_probe(struct i2c_client *client,
 	if (!iqs5xx)
 		return -ENOMEM;
 
-	dev_set_drvdata(&client->dev, iqs5xx);
-
 	i2c_set_clientdata(client, iqs5xx);
 	iqs5xx->client = client;
 
diff --git a/drivers/input/touchscreen/jornada720_ts.c b/drivers/input/touchscreen/jornada720_ts.c
index 729b3c89324c..974521102178 100644
--- a/drivers/input/touchscreen/jornada720_ts.c
+++ b/drivers/input/touchscreen/jornada720_ts.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * drivers/input/touchscreen/jornada720_ts.c
  *
@@ -6,10 +7,6 @@
  *  Copyright (C) 2006 Filip Zyzniewski <filip.zyzniewski@tefnet.pl>
  *  based on HP Jornada 56x touchscreen driver by Alex Lange <chicken@handhelds.org>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
  * HP Jornada 710/720/729 Touchscreen Driver
  */
 
diff --git a/drivers/input/touchscreen/mc13783_ts.c b/drivers/input/touchscreen/mc13783_ts.c
index ef64f36c5ffc..ae0d978c83bf 100644
--- a/drivers/input/touchscreen/mc13783_ts.c
+++ b/drivers/input/touchscreen/mc13783_ts.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Driver for the Freescale Semiconductor MC13783 touchscreen.
  *
@@ -6,10 +7,6 @@
  *
  * Initial development of this code was funded by
  * Phytec Messtechnik GmbH, http://www.phytec.de/
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 #include <linux/platform_device.h>
 #include <linux/mfd/mc13783.h>
diff --git a/drivers/input/touchscreen/mk712.c b/drivers/input/touchscreen/mk712.c
index c179060525ae..753d9cc1de1f 100644
--- a/drivers/input/touchscreen/mk712.c
+++ b/drivers/input/touchscreen/mk712.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * ICS MK712 touchscreen controller driver
  *
@@ -6,11 +7,6 @@
  * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz>
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
 
 /*
  * This driver supports the ICS MicroClock MK712 TouchScreen controller,
diff --git a/drivers/input/touchscreen/mtouch.c b/drivers/input/touchscreen/mtouch.c
index 8278a9058640..28e449eea318 100644
--- a/drivers/input/touchscreen/mtouch.c
+++ b/drivers/input/touchscreen/mtouch.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * MicroTouch (3M) serial touchscreen driver
  *
  * Copyright (c) 2004 Vojtech Pavlik
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
 
 /*
  * 2005/02/19 Dan Streetman <ddstreet@ieee.org>
diff --git a/drivers/input/touchscreen/of_touchscreen.c b/drivers/input/touchscreen/of_touchscreen.c
index 6d241d45e312..e16ec4c7043a 100644
--- a/drivers/input/touchscreen/of_touchscreen.c
+++ b/drivers/input/touchscreen/of_touchscreen.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  Generic DT helper functions for touchscreen devices
  *
  *  Copyright (c) 2014 Sebastian Reichel <sre@kernel.org>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
- *
  */
 
 #include <linux/property.h>
diff --git a/drivers/input/touchscreen/pcap_ts.c b/drivers/input/touchscreen/pcap_ts.c
index 0e3fc419a3cf..b2da0194e02a 100644
--- a/drivers/input/touchscreen/pcap_ts.c
+++ b/drivers/input/touchscreen/pcap_ts.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Driver for Motorola PCAP2 touchscreen as found in the EZX phone platform.
  *
  *  Copyright (C) 2006 Harald Welte <laforge@openezx.org>
  *  Copyright (C) 2009 Daniel Ribeiro <drwyrm@gmail.com>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
- *
  */
 
 #include <linux/module.h>
diff --git a/drivers/input/touchscreen/penmount.c b/drivers/input/touchscreen/penmount.c
index 6e6d7fd98cd2..12abb3b36128 100644
--- a/drivers/input/touchscreen/penmount.c
+++ b/drivers/input/touchscreen/penmount.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Penmount serial touchscreen driver
  *
@@ -8,11 +9,6 @@
  * Copyright (c) 2004 Vojtech Pavlik
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
 
 #include <linux/errno.h>
 #include <linux/kernel.h>
diff --git a/drivers/input/touchscreen/silead.c b/drivers/input/touchscreen/silead.c
index a67d5e93fb77..ad8b6a2bfd36 100644
--- a/drivers/input/touchscreen/silead.c
+++ b/drivers/input/touchscreen/silead.c
@@ -609,6 +609,7 @@ static const struct acpi_device_id silead_ts_acpi_match[] = {
 	{ "MSSL1680", 0 },
 	{ "MSSL0001", 0 },
 	{ "MSSL0002", 0 },
+	{ "MSSL0017", 0 },
 	{ }
 };
 MODULE_DEVICE_TABLE(acpi, silead_ts_acpi_match);
diff --git a/drivers/input/touchscreen/sun4i-ts.c b/drivers/input/touchscreen/sun4i-ts.c
index 92f6e1ae23a2..f11ba7f2dca7 100644
--- a/drivers/input/touchscreen/sun4i-ts.c
+++ b/drivers/input/touchscreen/sun4i-ts.c
@@ -22,7 +22,7 @@
  * in the kernel). So this driver offers straight forward, reliable single
  * touch functionality only.
  *
- * s.a. A20 User Manual "1.15 TP" (Documentation/arm/sunxi/README)
+ * s.a. A20 User Manual "1.15 TP" (Documentation/arm/sunxi.rst)
  * (looks like the description in the A20 User Manual v1.3 is better
  * than the one in the A10 User Manual v.1.5)
  */
diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c
index 8c8ac4dff0d5..00cb1ba2d364 100644
--- a/drivers/input/touchscreen/sur40.c
+++ b/drivers/input/touchscreen/sur40.c
@@ -929,10 +929,6 @@ static int sur40_vidioc_querycap(struct file *file, void *priv,
 	strlcpy(cap->driver, DRIVER_SHORT, sizeof(cap->driver));
 	strlcpy(cap->card, DRIVER_LONG, sizeof(cap->card));
 	usb_make_path(sur40->usbdev, cap->bus_info, sizeof(cap->bus_info));
-	cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TOUCH |
-		V4L2_CAP_READWRITE |
-		V4L2_CAP_STREAMING;
-	cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
 	return 0;
 }
 
@@ -1162,6 +1158,8 @@ static const struct video_device sur40_video_device = {
 	.fops = &sur40_video_fops,
 	.ioctl_ops = &sur40_video_ioctl_ops,
 	.release = video_device_release_empty,
+	.device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TOUCH |
+		       V4L2_CAP_READWRITE | V4L2_CAP_STREAMING,
 };
 
 /* USB-specific object needed to register this driver with the USB subsystem. */
diff --git a/drivers/input/touchscreen/sx8654.c b/drivers/input/touchscreen/sx8654.c
index dbdf4898aa17..de85e57b2486 100644
--- a/drivers/input/touchscreen/sx8654.c
+++ b/drivers/input/touchscreen/sx8654.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Driver for Semtech SX8654 I2C touchscreen controller.
  *
@@ -21,10 +22,6 @@
  *      Copyright (C) 2002 MontaVista Software
  *      Copyright (C) 2004 Texas Instruments
  *      Copyright (C) 2005 Dirk Behme
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
  */
 
 #include <linux/bitops.h>
diff --git a/drivers/input/touchscreen/touchit213.c b/drivers/input/touchscreen/touchit213.c
index 98a16698be8e..fb49687da405 100644
--- a/drivers/input/touchscreen/touchit213.c
+++ b/drivers/input/touchscreen/touchit213.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Sahara TouchIT-213 serial touchscreen driver
  *
@@ -9,11 +10,6 @@
  * and Dan Streetman <ddstreet@ieee.org>
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
 
 #include <linux/errno.h>
 #include <linux/kernel.h>
diff --git a/drivers/input/touchscreen/touchright.c b/drivers/input/touchscreen/touchright.c
index 45c325c33f21..3cd58a13e44f 100644
--- a/drivers/input/touchscreen/touchright.c
+++ b/drivers/input/touchscreen/touchright.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Touchright serial touchscreen driver
  *
@@ -8,11 +9,6 @@
  * and Dan Streetman <ddstreet@ieee.org>
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
 
 #include <linux/errno.h>
 #include <linux/kernel.h>
diff --git a/drivers/input/touchscreen/touchwin.c b/drivers/input/touchscreen/touchwin.c
index 2ba6b4ca28cb..bde3c6ee3c60 100644
--- a/drivers/input/touchscreen/touchwin.c
+++ b/drivers/input/touchscreen/touchwin.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Touchwindow serial touchscreen driver
  *
@@ -8,11 +9,6 @@
  * and Dan Streetman <ddstreet@ieee.org>
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
 
 /*
  * 2005/02/19 Rick Koch:
diff --git a/drivers/input/touchscreen/tsc2007.h b/drivers/input/touchscreen/tsc2007.h
index 30fdf5b04a6b..91c60bf6dcaf 100644
--- a/drivers/input/touchscreen/tsc2007.h
+++ b/drivers/input/touchscreen/tsc2007.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 /*
  * Copyright (c) 2008 MtekVision Co., Ltd.
@@ -13,10 +14,6 @@
  *	Copyright (C) 2002 MontaVista Software
  *	Copyright (C) 2004 Texas Instruments
  *	Copyright (C) 2005 Dirk Behme
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
  */
 
 #ifndef _TSC2007_H
diff --git a/drivers/input/touchscreen/tsc2007_core.c b/drivers/input/touchscreen/tsc2007_core.c
index 8342e0c48a53..3b80abfc1eca 100644
--- a/drivers/input/touchscreen/tsc2007_core.c
+++ b/drivers/input/touchscreen/tsc2007_core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * drivers/input/touchscreen/tsc2007.c
  *
@@ -14,10 +15,6 @@
  *	Copyright (C) 2002 MontaVista Software
  *	Copyright (C) 2004 Texas Instruments
  *	Copyright (C) 2005 Dirk Behme
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
  */
 
 #include <linux/module.h>
diff --git a/drivers/input/touchscreen/tsc2007_iio.c b/drivers/input/touchscreen/tsc2007_iio.c
index e27a956f5f2b..3b0e3fa87d4c 100644
--- a/drivers/input/touchscreen/tsc2007_iio.c
+++ b/drivers/input/touchscreen/tsc2007_iio.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2016 Golden Delicious Comp. GmbH&Co. KG
  *	Nikolaus Schaller <hns@goldelico.com>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
  */
 
 #include <linux/i2c.h>
diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c
index 1a86cbd9326f..807d39e18091 100644
--- a/drivers/input/touchscreen/ucb1400_ts.c
+++ b/drivers/input/touchscreen/ucb1400_ts.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  Philips UCB1400 touchscreen driver
  *
@@ -9,10 +10,6 @@
  * If something doesn't work and it worked before spliting, e-mail me,
  * dont bother Nicolas please ;-)
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
  * This code is heavily based on ucb1x00-*.c copyrighted by Russell King
  * covering the UCB1100, UCB1200 and UCB1300..  Support for the UCB1400 has
  * been made separate from ucb1x00-core/ucb1x00-ts on Russell's request.