ARM: pxa: add gpio keys information

Switching from corgikbd to matrixkbd corgi has lost support for few switches.
Readd them through gpio-keys-polled device (-polled, since scoop does
not provide IRQ for GPIO).

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>

1 files changed, 40 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c
index f162f1b77cd2..57d60542f982 100644
--- a/arch/arm/mach-pxa/corgi.c
+++ b/arch/arm/mach-pxa/corgi.c
@@ -32,6 +32,7 @@
 #include <linux/spi/pxa2xx_spi.h>
 #include <linux/mtd/sharpsl.h>
 #include <linux/input/matrix_keypad.h>
+#include <linux/gpio_keys.h>
 #include <linux/module.h>
 #include <video/w100fb.h>
 
@@ -405,6 +406,44 @@ static struct platform_device corgikbd_device = {
         },
 };
 
+static struct gpio_keys_button corgi_gpio_keys[] = {
+        {
+                .type   = EV_SW,
+                .code   = SW_LID,
+                .gpio   = CORGI_GPIO_SWA,
+                .desc   = "Lid close switch",
+                .debounce_interval = 500,
+        },
+        {
+                .type   = EV_SW,
+                .code   = SW_TABLET_MODE,
+                .gpio   = CORGI_GPIO_SWB,
+                .desc   = "Tablet mode switch",
+                .debounce_interval = 500,
+        },
+        {
+                .type   = EV_SW,
+                .code   = SW_HEADPHONE_INSERT,
+                .gpio   = CORGI_GPIO_AK_INT,
+                .desc   = "HeadPhone insert",
+                .debounce_interval = 500,
+        },
+};
+
+static struct gpio_keys_platform_data corgi_gpio_keys_platform_data = {
+        .buttons        = corgi_gpio_keys,
+        .nbuttons       = ARRAY_SIZE(corgi_gpio_keys),
+        .poll_interval  = 250,
+};
+
+static struct platform_device corgi_gpio_keys_device = {
+        .name   = "gpio-keys-polled",
+        .id     = -1,
+        .dev    = {
+                .platform_data  = &corgi_gpio_keys_platform_data,
+        },
+};
+
 /*
  * Corgi LEDs
  */
@@ -646,6 +685,7 @@ static struct platform_device sharpsl_rom_device = {
 static struct platform_device *devices[] __initdata = {
         &corgiscoop_device,
         &corgifb_device,
+        &corgi_gpio_keys_device,
         &corgikbd_device,
         &corgiled_device,
         &corgi_audio_device,