> -----Original Message----- > From: linux-omap-owner@xxxxxxxxxxxxxxx > [mailto:linux-omap-owner@xxxxxxxxxxxxxxx] On Behalf Of Datta, > Shubhrajyoti > Sent: Thursday, August 19, 2010 5:12 PM > To: linux-omap@xxxxxxxxxxxxxxx > Cc: linux-input@xxxxxxxxxxxxxxx; Datta, Shubhrajyoti > Subject: [RFC PATCH] Board support for the the GPIO keys > > 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 Insert a new line. > +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), > }; Insert a new line. > +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, > +}; Insert a new line. > +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; > } Insert a new line. > +static int omap_prox_activate(struct device *dev) > +{ > + gpio_set_value(OMAP4_SFH7741_ENABLE_GPIO , 1); > + return 0; > +} Insert a new line. > +static void omap_prox_deactivate(struct device *dev) > +{ > + gpio_set_value(OMAP4_SFH7741_ENABLE_GPIO , 0); > +} Insert a new line. > +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); > + } > +} Insert a new line. > 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 > -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
