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| author | Arnaud Patard (Rtp) <arnaud.patard@rtp-net.org> | 2010-10-27 14:40:52 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2010-11-24 09:57:12 +0100 |
| commit | fcbd0c5f20918c6db0c72d4e7546880833713f9c (patch) | |
| tree | 6c4199914f522143a75ecbca9f7717236d404781 /arch/arm/mach-mx5 | |
| parent | 9d2c0ef76f429c038de27e1b734d65a67dbc8088 (diff) | |
| download | kernel_samsung_smdk4412-fcbd0c5f20918c6db0c72d4e7546880833713f9c.zip kernel_samsung_smdk4412-fcbd0c5f20918c6db0c72d4e7546880833713f9c.tar.gz kernel_samsung_smdk4412-fcbd0c5f20918c6db0c72d4e7546880833713f9c.tar.bz2 | |
efikamx: add support for power key
This patch adds support for power key button of the efika mx. It's connected
on GPIO 2 31.
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-mx5')
| -rw-r--r-- | arch/arm/mach-mx5/board-mx51_efikamx.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm/mach-mx5/board-mx51_efikamx.c b/arch/arm/mach-mx5/board-mx51_efikamx.c index 386bf2a..4d102ea 100644 --- a/arch/arm/mach-mx5/board-mx51_efikamx.c +++ b/arch/arm/mach-mx5/board-mx51_efikamx.c @@ -19,6 +19,7 @@ #include <linux/i2c.h> #include <linux/gpio.h> #include <linux/leds.h> +#include <linux/input.h> #include <linux/delay.h> #include <linux/io.h> #include <linux/fsl_devices.h> @@ -48,10 +49,13 @@ #define EFIKAMX_GREEN_LED (2*32 + 14) #define EFIKAMX_RED_LED (2*32 + 15) +#define EFIKAMX_POWER_KEY (1*32 + 31) + /* the pci ids pin have pull up. they're driven low according to board id */ #define MX51_PAD_PCBID0 IOMUX_PAD(0x518, 0x130, 3, 0x0, 0, PAD_CTL_PUS_100K_UP) #define MX51_PAD_PCBID1 IOMUX_PAD(0x51C, 0x134, 3, 0x0, 0, PAD_CTL_PUS_100K_UP) #define MX51_PAD_PCBID2 IOMUX_PAD(0x504, 0x128, 3, 0x0, 0, PAD_CTL_PUS_100K_UP) +#define MX51_PAD_PWRKEY IOMUX_PAD(0x48c, 0x0f8, 1, 0x0, 0, PAD_CTL_PUS_100K_UP | PAD_CTL_PKE) static iomux_v3_cfg_t mx51efikamx_pads[] = { /* UART1 */ @@ -90,6 +94,9 @@ static iomux_v3_cfg_t mx51efikamx_pads[] = { MX51_PAD_CSI1_D9__GPIO_3_13, MX51_PAD_CSI1_VSYNC__GPIO_3_14, MX51_PAD_CSI1_HSYNC__GPIO_3_15, + + /* power key */ + MX51_PAD_PWRKEY, }; /* Serial ports */ @@ -219,6 +226,22 @@ static struct platform_device mx51_efikamx_leds_device = { }, }; +static struct gpio_keys_button mx51_efikamx_powerkey[] = { + { + .code = KEY_POWER, + .gpio = EFIKAMX_POWER_KEY, + .type = EV_PWR, + .desc = "Power Button (CM)", + .wakeup = 1, + .debounce_interval = 10, /* ms */ + }, +}; + +static const struct gpio_keys_platform_data mx51_efikamx_powerkey_data __initconst = { + .buttons = mx51_efikamx_powerkey, + .nbuttons = ARRAY_SIZE(mx51_efikamx_powerkey), +}; + static void __init mxc_board_init(void) { mxc_iomux_v3_setup_multiple_pads(mx51efikamx_pads, @@ -235,6 +258,7 @@ static void __init mxc_board_init(void) } platform_device_register(&mx51_efikamx_leds_device); + imx51_add_gpio_keys(&mx51_efikamx_powerkey_data); } static void __init mx51_efikamx_timer_init(void) |