ARM: S5PV310: Add GPIO keys at Universal board

Universal board has 5 GPIO keys.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

1 files changed, 62 insertions, 0 deletions

diff --git a/arch/arm/mach-s5pv310/mach-universal_c210.c b/arch/arm/mach-s5pv310/mach-universal_c210.c
index 2388cb947936..b57efaeb295f 100644
--- a/arch/arm/mach-s5pv310/mach-universal_c210.c
+++ b/arch/arm/mach-s5pv310/mach-universal_c210.c
@@ -7,7 +7,11 @@
  * published by the Free Software Foundation.
 */
 
+#include <linux/platform_device.h>
 #include <linux/serial_core.h>
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
+#include <linux/gpio.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach-types.h>
@@ -60,6 +64,61 @@ static struct s3c2410_uartcfg universal_uartcfgs[] __initdata = {
         },
 };
 
+static struct gpio_keys_button universal_gpio_keys_tables[] = {
+        {
+                .code                   = KEY_VOLUMEUP,
+                .gpio                   = S5PV310_GPX2(0),      /* XEINT16 */
+                .desc                   = "gpio-keys: KEY_VOLUMEUP",
+                .type                   = EV_KEY,
+                .active_low             = 1,
+                .debounce_interval      = 1,
+        }, {
+                .code                   = KEY_VOLUMEDOWN,
+                .gpio                   = S5PV310_GPX2(1),      /* XEINT17 */
+                .desc                   = "gpio-keys: KEY_VOLUMEDOWN",
+                .type                   = EV_KEY,
+                .active_low             = 1,
+                .debounce_interval      = 1,
+        }, {
+                .code                   = KEY_CONFIG,
+                .gpio                   = S5PV310_GPX2(2),      /* XEINT18 */
+                .desc                   = "gpio-keys: KEY_CONFIG",
+                .type                   = EV_KEY,
+                .active_low             = 1,
+                .debounce_interval      = 1,
+        }, {
+                .code                   = KEY_CAMERA,
+                .gpio                   = S5PV310_GPX2(3),      /* XEINT19 */
+                .desc                   = "gpio-keys: KEY_CAMERA",
+                .type                   = EV_KEY,
+                .active_low             = 1,
+                .debounce_interval      = 1,
+        }, {
+                .code                   = KEY_OK,
+                .gpio                   = S5PV310_GPX3(5),      /* XEINT29 */
+                .desc                   = "gpio-keys: KEY_OK",
+                .type                   = EV_KEY,
+                .active_low             = 1,
+                .debounce_interval      = 1,
+        },
+};
+
+static struct gpio_keys_platform_data universal_gpio_keys_data = {
+        .buttons        = universal_gpio_keys_tables,
+        .nbuttons       = ARRAY_SIZE(universal_gpio_keys_tables),
+};
+
+static struct platform_device universal_gpio_keys = {
+        .name                   = "gpio-keys",
+        .dev                    = {
+                .platform_data  = &universal_gpio_keys_data,
+        },
+};
+
+static struct platform_device *universal_devices[] __initdata = {
+        &universal_gpio_keys,
+};
+
 static void __init universal_map_io(void)
 {
         s5p_init_io(NULL, 0, S5P_VA_CHIPID);
@@ -72,6 +131,9 @@ static void __init universal_machine_init(void)
 #ifdef CONFIG_CACHE_L2X0
         l2x0_init(S5P_VA_L2CC, 1 << 28, 0xffffffff);
 #endif
+
+        /* Last */
+        platform_add_devices(universal_devices, ARRAY_SIZE(universal_devices));
 }
 
 MACHINE_START(UNIVERSAL_C210, "UNIVERSAL_C210")