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authorPaul Parsons <lost.distance@yahoo.com>2012-05-12 12:31:02 +0100
committerHaojian Zhuang <haojian.zhuang@gmail.com>2012-05-14 09:38:17 +0800
commitb2596c682814b39f0dd16e19e3be8fc8581643bd (patch)
treeefdc0bd71df73aa53f1e2c8fde2876c50df83d44 /arch/arm/mach-pxa
parent0bf189abc52b89bfcfa9782543de7f5e90263fe5 (diff)
downloadblackbird-op-linux-b2596c682814b39f0dd16e19e3be8fc8581643bd.tar.gz
blackbird-op-linux-b2596c682814b39f0dd16e19e3be8fc8581643bd.zip
ARM: pxa: hx4700: Add Synaptics NavPoint touchpad
This patch adds the Synaptics NavPoint touchpad to the hx4700 platform: 1. Change GPIO23_SSP1_SCLK value in hx4700_pin_config[] from an output to an input, since the NavPoint is connected to SSP in SPI slave mode. 2. Add GPIO102_GPIO (NavPoint power) to hx4700_pin_config[]. 3. Add navpoint platform_device to devices[]. Signed-off-by: Paul Parsons <lost.distance@yahoo.com> Cc: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Diffstat (limited to 'arch/arm/mach-pxa')
-rw-r--r--arch/arm/mach-pxa/hx4700.c24
-rw-r--r--arch/arm/mach-pxa/include/mach/mfp-pxa27x.h1
2 files changed, 24 insertions, 1 deletions
diff --git a/arch/arm/mach-pxa/hx4700.c b/arch/arm/mach-pxa/hx4700.c
index 88f0f51ad6d5..865f6d37372e 100644
--- a/arch/arm/mach-pxa/hx4700.c
+++ b/arch/arm/mach-pxa/hx4700.c
@@ -22,6 +22,7 @@
#include <linux/gpio.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
+#include <linux/input/navpoint.h>
#include <linux/lcd.h>
#include <linux/mfd/htc-egpio.h>
#include <linux/mfd/asic3.h>
@@ -113,7 +114,7 @@ static unsigned long hx4700_pin_config[] __initdata = {
GPIO113_I2S_SYSCLK,
/* SSP 1 (NavPoint) */
- GPIO23_SSP1_SCLK,
+ GPIO23_SSP1_SCLK_IN,
GPIO24_SSP1_SFRM,
GPIO25_SSP1_TXD,
GPIO26_SSP1_RXD,
@@ -129,6 +130,9 @@ static unsigned long hx4700_pin_config[] __initdata = {
GPIO13_GPIO, /* W3220_IRQ */
GPIO14_GPIO, /* nWLAN_IRQ */
+ /* HX4700 specific output GPIOs */
+ GPIO102_GPIO | MFP_LPM_DRIVE_LOW, /* SYNAPTICS_POWER_ON */
+
GPIO10_GPIO, /* GSM_IRQ */
GPIO13_GPIO, /* CPLD_IRQ */
GPIO107_GPIO, /* DS1WM_IRQ */
@@ -183,6 +187,23 @@ static struct platform_device gpio_keys = {
};
/*
+ * Synaptics NavPoint connected to SSP1
+ */
+
+static struct navpoint_platform_data navpoint_platform_data = {
+ .port = 1,
+ .gpio = GPIO102_HX4700_SYNAPTICS_POWER_ON,
+};
+
+static struct platform_device navpoint = {
+ .name = "navpoint",
+ .id = -1,
+ .dev = {
+ .platform_data = &navpoint_platform_data,
+ },
+};
+
+/*
* ASIC3
*/
@@ -823,6 +844,7 @@ static struct platform_device audio = {
static struct platform_device *devices[] __initdata = {
&asic3,
&gpio_keys,
+ &navpoint,
&backlight,
&w3220,
&hx4700_lcd,
diff --git a/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h b/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h
index a65867209aa0..a611ad3153c7 100644
--- a/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h
+++ b/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h
@@ -208,6 +208,7 @@
#define GPIO113_I2S_SYSCLK MFP_CFG_OUT(GPIO113, AF1, DRIVE_LOW)
/* SSP 1 */
+#define GPIO23_SSP1_SCLK_IN MFP_CFG_IN(GPIO23, AF2)
#define GPIO23_SSP1_SCLK MFP_CFG_OUT(GPIO23, AF2, DRIVE_LOW)
#define GPIO29_SSP1_SCLK MFP_CFG_IN(GPIO29, AF3)
#define GPIO27_SSP1_SYSCLK MFP_CFG_OUT(GPIO27, AF1, DRIVE_LOW)
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