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Subject[PATCH 03/09] ARM: s3c2440: gta02: Add button support
Date
This patch adds support for the two buttons found on the gta02 device, which are
connectd to gpio pins, using the gpio-keys driver.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
---
arch/arm/mach-s3c2440/mach-gta02.c | 34 ++++++++++++++++++++++++++++++++++
1 files changed, 34 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c
index e83062b..6629998 100644
--- a/arch/arm/mach-s3c2440/mach-gta02.c
+++ b/arch/arm/mach-s3c2440/mach-gta02.c
@@ -58,6 +58,9 @@
#include <linux/mfd/pcf50633/pmic.h>
#include <linux/mfd/pcf50633/backlight.h>

+#include <linux/input.h>
+#include <linux/gpio_keys.h>
+
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
@@ -489,6 +492,36 @@ static struct s3c2410_hcd_info gta02_usb_info __initdata = {
},
};

+/* Buttons */
+static struct gpio_keys_button gta02_buttons[] = {
+ {
+ .gpio = GTA02_GPIO_AUX_KEY,
+ .code = KEY_PHONE,
+ .desc = "Aux",
+ .type = EV_KEY,
+ .debounce_interval = 100,
+ },
+ {
+ .gpio = GTA02_GPIO_HOLD_KEY,
+ .code = KEY_PAUSE,
+ .desc = "Hold",
+ .type = EV_KEY,
+ .debounce_interval = 100,
+ },
+};
+
+static struct gpio_keys_platform_data gta02_buttons_pdata = {
+ .buttons = gta02_buttons,
+ .nbuttons = ARRAY_SIZE(gta02_buttons),
+};
+
+static struct platform_device gta02_buttons_device = {
+ .name = "gpio-keys",
+ .id = -1,
+ .dev = {
+ .platform_data = &gta02_buttons_pdata,
+ },
+};

static void __init gta02_map_io(void)
{
@@ -511,6 +544,7 @@ static struct platform_device *gta02_devices[] __initdata = {
&s3c_device_iis,
&samsung_asoc_dma,
&s3c_device_i2c0,
+ &gta02_buttons_device,
};

/* These guys DO need to be children of PMU. */
--
1.7.2.3


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