From: Gary King <gking@nvidia.com>
Date: Wed, 4 Aug 2010 00:50:19 +0000 (-0700)
Subject: [ARM] tegra: ventana: register gpio-keys device
X-Git-Tag: firefly_0821_release~9833^2~294
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=53ab084b410347950599a6e907eb670a155946ee;p=firefly-linux-kernel-4.4.55.git

[ARM] tegra: ventana: register gpio-keys device

Change-Id: Ie2e59f61facb116a5af88478e231542778af9eaf
Signed-off-by: Gary King <gking@nvidia.com>
---

diff --git a/arch/arm/mach-tegra/board-ventana.c b/arch/arm/mach-tegra/board-ventana.c
index ea37c0698bc7..91e26e4ec4ce 100644
--- a/arch/arm/mach-tegra/board-ventana.c
+++ b/arch/arm/mach-tegra/board-ventana.c
@@ -31,6 +31,8 @@
 #include <linux/delay.h>
 #include <linux/i2c-tegra.h>
 #include <linux/gpio.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
 
 #include <mach/iomap.h>
 #include <mach/irqs.h>
@@ -139,20 +141,61 @@ static void ventana_i2c_init(void)
 	platform_device_register(&tegra_i2c_device1);
 }
 
+#define GPIO_KEY(_id, _gpio, _iswake)		\
+	{					\
+		.code = _id,			\
+		.gpio = TEGRA_GPIO_##_gpio,	\
+		.active_low = 1,		\
+		.desc = #_id,			\
+		.type = EV_KEY,			\
+		.wakeup = _iswake,		\
+		.debounce_interval = 10,	\
+	}
+
+static struct gpio_keys_button ventana_keys[] = {
+	[0] = GPIO_KEY(KEY_MENU, PQ0, 0),
+	[1] = GPIO_KEY(KEY_HOME, PQ1, 0),
+	[2] = GPIO_KEY(KEY_BACK, PQ2, 0),
+	[3] = GPIO_KEY(KEY_VOLUMEUP, PQ3, 0),
+	[4] = GPIO_KEY(KEY_VOLUMEDOWN, PQ4, 0),
+	[5] = GPIO_KEY(KEY_POWER, PV2, 1),
+};
+
+static struct gpio_keys_platform_data ventana_keys_platform_data = {
+	.buttons	= ventana_keys,
+	.nbuttons	= ARRAY_SIZE(ventana_keys),
+};
+
+static struct platform_device ventana_keys_device = {
+	.name	= "gpio-keys",
+	.id	= 0,
+	.dev	= {
+		.platform_data	= &ventana_keys_platform_data,
+	},
+};
+
 static struct platform_device *ventana_devices[] __initdata = {
 	&debug_uart,
 	&tegra_udc_device,
 	&pda_power_device,
 	&tegra_gart_device,
+	&ventana_keys_device,
 };
 
-static int ventana_touch_reset(void)
+static void ventana_touch_reset(void)
 {
 	gpio_set_value(TEGRA_GPIO_PQ7, 1);
 	msleep(50);
 	gpio_set_value(TEGRA_GPIO_PQ7, 0);
 	msleep(50);
-	return 0;
+}
+
+static void ventana_keys_init(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(ventana_keys); i++)
+		tegra_gpio_enable(ventana_keys[i].gpio);
 }
 
 static const struct i2c_board_info ventana_i2c_bus1_touch_info[] = {
@@ -188,6 +231,7 @@ static void __init tegra_ventana_init(void)
 	ventana_i2c_init();
 	ventana_regulator_init();
 	ventana_touch_init();
+	ventana_keys_init();
 }
 
 MACHINE_START(VENTANA, "ventana")