diff options
| author | Paul Parsons <lost.distance@yahoo.com> | 2012-05-12 12:31:02 +0100 |
|---|---|---|
| committer | Haojian Zhuang <haojian.zhuang@gmail.com> | 2012-05-14 09:38:17 +0800 |
| commit | b2596c682814b39f0dd16e19e3be8fc8581643bd (patch) | |
| tree | efdc0bd71df73aa53f1e2c8fde2876c50df83d44 /arch/arm | |
| parent | 0bf189abc52b89bfcfa9782543de7f5e90263fe5 (diff) | |
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')
| -rw-r--r-- | arch/arm/mach-pxa/hx4700.c | 24 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/include/mach/mfp-pxa27x.h | 1 |
2 files changed, 24 insertions, 1 deletions
diff --git a/arch/arm/mach-pxa/hx4700.c b/arch/arm/mach-pxa/hx4700.c index 88f0f51ad6d..865f6d37372 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 a65867209aa..a611ad3153c 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) |