Merge tag 'gadget-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

usb: gadget: patches for v3.7 merge window

This pull request is large but the biggest part is the first part
of the cleanup on the gadget framework so we have a saner setup
to add configfs support for v3.8.

We have also some more conversions to the new udc_start/udc_stop
which makes us closer from dropping the old interfaces.

USB_GADGET_DUALSPEED and USB_GADGET_SUPERSPEED are finally gone,
thanks to Michal for his awesome work.

Other than that, we have the usual set of miscellaneous changes
and cleanups involving improvements to debug messages, removal
of duplicated includes, moving dereference after NULL test,
making renesas_hsbhs' irq handler Shared, unused code being dropped,
prevention of sleep-inside-spinlock bugs and a race condition fix
on udc-core.

1 files changed, 14 insertions, 48 deletions

diff --git a/drivers/usb/gadget/audio.c b/drivers/usb/gadget/audio.c
index 98899244860e..231b0efe8fdc 100644
--- a/drivers/usb/gadget/audio.c
+++ b/drivers/usb/gadget/audio.c
@@ -12,35 +12,21 @@
 /* #define VERBOSE_DEBUG */
 
 #include <linux/kernel.h>
-#include <linux/utsname.h>
+#include <linux/module.h>
+#include <linux/usb/composite.h>
 
+#include "gadget_chips.h"
 #define DRIVER_DESC		"Linux USB Audio Gadget"
 #define DRIVER_VERSION		"Feb 2, 2012"
 
-/*-------------------------------------------------------------------------*/
-
-/*
- * Kbuild is not very cooperative with respect to linking separately
- * compiled library objects into one module.  So for now we won't use
- * separate compilation ... ensuring init/exit sections work to shrink
- * the runtime footprint, and giving us at least some parts of what
- * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
- */
-#include "composite.c"
-#include "usbstring.c"
-#include "config.c"
-#include "epautoconf.c"
+USB_GADGET_COMPOSITE_OPTIONS();
 
 /* string IDs are assigned dynamically */
 
-#define STRING_MANUFACTURER_IDX		0
-#define STRING_PRODUCT_IDX		1
-
-static char manufacturer[50];
-
 static struct usb_string strings_dev[] = {
-	[STRING_MANUFACTURER_IDX].s = manufacturer,
-	[STRING_PRODUCT_IDX].s = DRIVER_DESC,
+	[USB_GADGET_MANUFACTURER_IDX].s = "",
+	[USB_GADGET_PRODUCT_IDX].s = DRIVER_DESC,
+	[USB_GADGET_SERIAL_IDX].s = "",
 	{  } /* end of list */
 };
 
@@ -149,39 +135,18 @@ static struct usb_configuration audio_config_driver = {
 
 static int __init audio_bind(struct usb_composite_dev *cdev)
 {
-	int			gcnum;
 	int			status;
 
-	gcnum = usb_gadget_controller_number(cdev->gadget);
-	if (gcnum >= 0)
-		device_desc.bcdDevice = cpu_to_le16(0x0300 | gcnum);
-	else {
-		ERROR(cdev, "controller '%s' not recognized; trying %s\n",
-			cdev->gadget->name,
-			audio_config_driver.label);
-		device_desc.bcdDevice =
-			__constant_cpu_to_le16(0x0300 | 0x0099);
-	}
-
-	/* device descriptor strings: manufacturer, product */
-	snprintf(manufacturer, sizeof manufacturer, "%s %s with %s",
-		init_utsname()->sysname, init_utsname()->release,
-		cdev->gadget->name);
-	status = usb_string_id(cdev);
-	if (status < 0)
-		goto fail;
-	strings_dev[STRING_MANUFACTURER_IDX].id = status;
-	device_desc.iManufacturer = status;
-
-	status = usb_string_id(cdev);
+	status = usb_string_ids_tab(cdev, strings_dev);
 	if (status < 0)
 		goto fail;
-	strings_dev[STRING_PRODUCT_IDX].id = status;
-	device_desc.iProduct = status;
+	device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
+	device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
 
 	status = usb_add_config(cdev, &audio_config_driver, audio_do_config);
 	if (status < 0)
 		goto fail;
+	usb_composite_overwrite_options(cdev, &coverwrite);
 
 	INFO(cdev, "%s, version: %s\n", DRIVER_DESC, DRIVER_VERSION);
 	return 0;
@@ -198,17 +163,18 @@ static int __exit audio_unbind(struct usb_composite_dev *cdev)
 	return 0;
 }
 
-static struct usb_composite_driver audio_driver = {
+static __refdata struct usb_composite_driver audio_driver = {
 	.name		= "g_audio",
 	.dev		= &device_desc,
 	.strings	= audio_strings,
 	.max_speed	= USB_SPEED_HIGH,
+	.bind		= audio_bind,
 	.unbind		= __exit_p(audio_unbind),
 };
 
 static int __init init(void)
 {
-	return usb_composite_probe(&audio_driver, audio_bind);
+	return usb_composite_probe(&audio_driver);
 }
 module_init(init);