[PATCH 2/2 v7] ARM: pxa: hx4700: Add Synaptics NavPoint touchpad
From: Paul Parsons <hidden>
Date: 2012-05-12 11:31:02
Subsystem:
arm port, pxa2xx/pxa3xx support, the rest · Maintainers:
Russell King, Daniel Mack, Haojian Zhuang, Robert Jarzmik, Linus Torvalds
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 <redacted> Cc: Philipp Zabel <redacted> --- V7: Changed subject line which was duplicated in patch 1/2. Add GPIO102 to hx4700_pin_config[]. Remove GPIO102 from global_gpios[]. Don't rename GPIO102_HX4700_SYNAPTICS_POWER_ON. Rebased from linux-3.2 to linux-3.4-rc6. arch/arm/mach-pxa/hx4700.c | 24 +++++++++++++++++++++++- 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 6bd692d..2acf66a 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>
@@ -117,7 +118,7 @@ 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,
@@ -133,6 +134,9 @@ 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 */
@@ -187,6 +191,23 @@ 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 */
@@ -833,6 +854,7 @@ 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 a658672..a611ad3 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)
--
1.7.3.4