[PATCH 1/3] ARM: tegra: paz00: add support for wakeup gpio key
From: marvin24@gmx.de (Marc Dietrich)
Date: 2011-10-31 19:58:53
Also in:
linux-tegra
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
This adds support for a wakeup gpio which is connected to the embedded controller. This will be used later on for wakeup from suspend. Signed-off-by: Marc Dietrich <marvin24@gmx.de> --- arch/arm/mach-tegra/board-paz00.c | 27 +++++++++++++++++++++++++++ arch/arm/mach-tegra/board-paz00.h | 3 +++ 2 files changed, 30 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-tegra/board-paz00.c b/arch/arm/mach-tegra/board-paz00.c
index 55c55ba..799e420 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)
diff --git a/arch/arm/mach-tegra/board-paz00.h b/arch/arm/mach-tegra/board-paz00.h
index 8aff06e..ffa83f5 100644
--- a/arch/arm/mach-tegra/board-paz00.h
+++ b/arch/arm/mach-tegra/board-paz00.h@@ -32,6 +32,9 @@ #define TEGRA_WIFI_RST TEGRA_GPIO_PD1 #define TEGRA_WIFI_LED TEGRA_GPIO_PD0 +/* WakeUp */ +#define TEGRA_GPIO_POWERKEY TEGRA_GPIO_PJ7 + void paz00_pinmux_init(void); #endif
--
1.7.5.4