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authorMarc Dietrich <marvin24@gmx.de>2011-11-01 10:37:03 +0000
committerOlof Johansson <olof@lixom.net>2011-12-07 21:13:47 -0800
commitc1c374d58c5678fd2364c767f4281342e5362b29 (patch)
treeaf411e7b26460b7813c2ed6a5227c4a6312eeac7 /arch/arm/mach-tegra/board-paz00.c
parent5611cc4572e889b62a7b4c72a413536bf6a9c416 (diff)
downloadlinux-c1c374d58c5678fd2364c767f4281342e5362b29.tar.gz
ARM: tegra: paz00: add support for wakeup gpio key
This adds support for a wakeup gpio which is connected to the
embedded controller. This will be used later on for wakeup from suspend.

Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/arm/mach-tegra/board-paz00.c')
-rw-r--r--arch/arm/mach-tegra/board-paz00.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/board-paz00.c b/arch/arm/mach-tegra/board-paz00.c
index 55c55ba89f1e..799e4201ecf3 100644
--- a/arch/arm/mach-tegra/board-paz00.c
+++ b/arch/arm/mach-tegra/board-paz00.c
@@ -23,8 +23,10 @@
 #include <linux/serial_8250.h>
 #include <linux/clk.h>
 #include <linux/dma-mapping.h>
+#include <linux/gpio_keys.h>
 #include <linux/pda_power.h>
 #include <linux/io.h>
+#include <linux/input.h>
 #include <linux/i2c.h>
 #include <linux/gpio.h>
 #include <linux/rfkill-gpio.h>
@@ -114,12 +116,37 @@ static struct platform_device leds_gpio = {
         },
 };
 
+static struct gpio_keys_button paz00_gpio_keys_buttons[] = {
+	{
+		.code		= KEY_POWER,
+		.gpio		= TEGRA_GPIO_POWERKEY,
+		.active_low	= 1,
+		.desc		= "Power",
+		.type		= EV_KEY,
+		.wakeup		= 1,
+	},
+};
+
+static struct gpio_keys_platform_data paz00_gpio_keys = {
+	.buttons	= paz00_gpio_keys_buttons,
+	.nbuttons	= ARRAY_SIZE(paz00_gpio_keys_buttons),
+};
+
+static struct platform_device gpio_keys_device = {
+	.name	= "gpio-keys",
+	.id	= -1,
+	.dev	= {
+		.platform_data = &paz00_gpio_keys,
+	},
+};
+
 static struct platform_device *paz00_devices[] __initdata = {
 	&debug_uart,
 	&tegra_sdhci_device4,
 	&tegra_sdhci_device1,
 	&wifi_rfkill_device,
 	&leds_gpio,
+	&gpio_keys_device,
 };
 
 static void paz00_i2c_init(void)