Board support for the GPIO keys. The proximity sensor is connected to GPIO and is registered as a GPIO key. Signed-off-by: Shubhrajyoti D <shubhrajyoti@xxxxxx> --- arch/arm/mach-omap2/board-4430sdp.c | 56 +++++++++++++++++++++++++++++++++++ 1 files changed, 56 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c index 9447644..7f619bf 100644 --- a/arch/arm/mach-omap2/board-4430sdp.c +++ b/arch/arm/mach-omap2/board-4430sdp.c @@ -20,6 +20,7 @@ #include <linux/usb/otg.h> #include <linux/spi/spi.h> #include <linux/i2c/twl.h> +#include <linux/gpio_keys.h> #include <linux/regulator/machine.h> #include <linux/leds.h> @@ -40,6 +41,10 @@ #define ETH_KS8851_IRQ 34 #define ETH_KS8851_POWER_ON 48 #define ETH_KS8851_QUART 138 +#define OMAP4_SFH7741_SENSOR_OUTPUT_GPIO 184 +#define OMAP4_SFH7741_ENABLE_GPIO 188 +static int omap_prox_activate(struct device *dev); +static void omap_prox_deactivate(struct device *dev); static struct gpio_led sdp4430_gpio_leds[] = { { @@ -76,11 +81,33 @@ static struct gpio_led sdp4430_gpio_leds[] = { }, }; +static struct gpio_keys_button sdp4430_gpio_keys[] = { + { + .desc = "Proximity Sensor", + .type = EV_SW, + .code = SW_FRONT_PROXIMITY, + .gpio = OMAP4_SFH7741_SENSOR_OUTPUT_GPIO, + .active_low = 0, + } +}; static struct gpio_led_platform_data sdp4430_led_data = { .leds = sdp4430_gpio_leds, .num_leds = ARRAY_SIZE(sdp4430_gpio_leds), }; +static struct gpio_keys_platform_data sdp4430_gpio_keys_data = { + .buttons = sdp4430_gpio_keys, + .nbuttons = ARRAY_SIZE(sdp4430_gpio_keys), + .enable = omap_prox_activate, + .disable = omap_prox_deactivate, +}; +static struct platform_device sdp4430_gpio_keys_device = { + .name = "gpio-keys", + .id = -1, + .dev = { + .platform_data = &sdp4430_gpio_keys_data, + }, +}; static struct platform_device sdp4430_leds_gpio = { .name = "leds-gpio", @@ -161,6 +188,7 @@ static struct platform_device sdp4430_lcd_device = { static struct platform_device *sdp4430_devices[] __initdata = { &sdp4430_lcd_device, + &sdp4430_gpio_keys_device, &sdp4430_leds_gpio, }; @@ -426,6 +454,33 @@ static int __init omap4_i2c_init(void) omap_register_i2c_bus(4, 400, NULL, 0); return 0; } +static int omap_prox_activate(struct device *dev) +{ + gpio_set_value(OMAP4_SFH7741_ENABLE_GPIO , 1); + return 0; +} +static void omap_prox_deactivate(struct device *dev) +{ + gpio_set_value(OMAP4_SFH7741_ENABLE_GPIO , 0); +} +static void omap_sfh7741prox_init(void) +{ + int error; + + error = gpio_request(OMAP4_SFH7741_ENABLE_GPIO, "sfh7741"); + if (error < 0) { + pr_err("failed to request GPIO %d, error %d\n", + OMAP4_SFH7741_ENABLE_GPIO, error); + return; + } + + error = gpio_direction_output(OMAP4_SFH7741_ENABLE_GPIO , 1); + if (error < 0) { + pr_err("%s: GPIO configuration failed: GPIO %d,error %d\n",\ + __func__, OMAP4_SFH7741_ENABLE_GPIO, error); + gpio_free(OMAP4_SFH7741_ENABLE_GPIO); + } +} static void __init omap_4430sdp_init(void) { int status; @@ -448,6 +503,7 @@ static void __init omap_4430sdp_init(void) spi_register_board_info(sdp4430_spi_board_info, ARRAY_SIZE(sdp4430_spi_board_info)); } + omap_sfh7741prox_init(); } static void __init omap_4430sdp_map_io(void) -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html