diff options
| author | Andrew Victor <linux@maxim.org.za> | 2008-09-21 21:32:40 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-09-21 23:01:00 +0100 |
| commit | 2e9f12d6dd061899385bcd910ecb8777c6d05a72 (patch) | |
| tree | 6aee334cdcbb077af3d1ab88470af9417fe2938d /arch/arm/mach-at91 | |
| parent | f7647e63f32c501e8b59ccfdac50eb3d3e897c41 (diff) | |
| download | kernel_samsung_smdk4412-2e9f12d6dd061899385bcd910ecb8777c6d05a72.zip kernel_samsung_smdk4412-2e9f12d6dd061899385bcd910ecb8777c6d05a72.tar.gz kernel_samsung_smdk4412-2e9f12d6dd061899385bcd910ecb8777c6d05a72.tar.bz2 | |
[ARM] 5262/2: [AT91] Support for GPIO-connected buttons on SAM9260-EK board
Add support or the GPIO-connected buttons on the Atmel AT91SAM9260-EK board.
Signed-off-by: Sedji Gaouaou <sedji.gaouaou@atmel.com>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-at91')
| -rw-r--r-- | arch/arm/mach-at91/board-sam9260ek.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/board-sam9260ek.c b/arch/arm/mach-at91/board-sam9260ek.c index e22433d..b49eb6e 100644 --- a/arch/arm/mach-at91/board-sam9260ek.c +++ b/arch/arm/mach-at91/board-sam9260ek.c @@ -28,6 +28,8 @@ #include <linux/spi/at73c213.h> #include <linux/clk.h> #include <linux/i2c/at24.h> +#include <linux/gpio_keys.h> +#include <linux/input.h> #include <asm/setup.h> #include <asm/mach-types.h> @@ -240,6 +242,56 @@ static struct i2c_board_info __initdata ek_i2c_devices[] = { /* more devices can be added using expansion connectors */ }; + +/* + * GPIO Buttons + */ +#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) +static struct gpio_keys_button ek_buttons[] = { + { + .gpio = AT91_PIN_PA30, + .code = BTN_3, + .desc = "Button 3", + .active_low = 1, + .wakeup = 1, + }, + { + .gpio = AT91_PIN_PA31, + .code = BTN_4, + .desc = "Button 4", + .active_low = 1, + .wakeup = 1, + } +}; + +static struct gpio_keys_platform_data ek_button_data = { + .buttons = ek_buttons, + .nbuttons = ARRAY_SIZE(ek_buttons), +}; + +static struct platform_device ek_button_device = { + .name = "gpio-keys", + .id = -1, + .num_resources = 0, + .dev = { + .platform_data = &ek_button_data, + } +}; + +static void __init ek_add_device_buttons(void) +{ + at91_set_gpio_input(AT91_PIN_PA30, 1); /* btn3 */ + at91_set_deglitch(AT91_PIN_PA30, 1); + at91_set_gpio_input(AT91_PIN_PA31, 1); /* btn4 */ + at91_set_deglitch(AT91_PIN_PA31, 1); + + platform_device_register(&ek_button_device); +} +#else +static void __init ek_add_device_buttons(void) {} +#endif + + static void __init ek_board_init(void) { /* Serial */ @@ -263,6 +315,8 @@ static void __init ek_board_init(void) at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX); /* LEDs */ at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds)); + /* Push Buttons */ + ek_add_device_buttons(); } MACHINE_START(AT91SAM9260EK, "Atmel AT91SAM9260-EK") |