diff options
| author | Philippe Langlais <philippe.langlais@linaro.org> | 2011-01-14 10:53:59 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2011-03-14 14:05:11 +0100 |
| commit | a71b819b6edfb31d6866d084167583bd92f4ad29 (patch) | |
| tree | da71554cd223bab699bf60e3cffee09eb09cf499 /arch/arm | |
| parent | b3f1f73d35839f3e40bd9dba2c3de53f56a2a880 (diff) | |
mach-ux500: platform data for SFH7741 proximity sensor driver
Proximity sensor is managed as an input event (SW_PROXIMITY).
Signed-off-by: Philippe Langlais <philippe.langlais@linaro.org>
[Named GPIO pin]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-ux500/board-mop500.c | 52 | ||||
| -rw-r--r-- | arch/arm/mach-ux500/board-mop500.h | 1 |
2 files changed, 53 insertions, 0 deletions
diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c index fd6d5090cae..dce68788be3 100644 --- a/arch/arm/mach-ux500/board-mop500.c +++ b/arch/arm/mach-ux500/board-mop500.c @@ -20,6 +20,8 @@ #include <linux/spi/spi.h> #include <linux/mfd/ab8500.h> #include <linux/mfd/tc3589x.h> +#include <linux/input.h> +#include <linux/gpio_keys.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -181,8 +183,58 @@ static void __init mop500_i2c_init(void) db8500_add_i2c3(&u8500_i2c3_data); } +static struct gpio_keys_button mop500_gpio_keys[] = { + { + .desc = "SFH7741 Proximity Sensor", + .type = EV_SW, + .code = SW_FRONT_PROXIMITY, + .gpio = GPIO_PROX_SENSOR, + .active_low = 0, + .can_disable = 1, + } +}; + +static struct regulator *prox_regulator; +static int mop500_prox_activate(struct device *dev); +static void mop500_prox_deactivate(struct device *dev); + +static struct gpio_keys_platform_data mop500_gpio_keys_data = { + .buttons = mop500_gpio_keys, + .nbuttons = ARRAY_SIZE(mop500_gpio_keys), + .enable = mop500_prox_activate, + .disable = mop500_prox_deactivate, +}; + +static struct platform_device mop500_gpio_keys_device = { + .name = "gpio-keys", + .id = 0, + .dev = { + .platform_data = &mop500_gpio_keys_data, + }, +}; + +static int mop500_prox_activate(struct device *dev) +{ + prox_regulator = regulator_get(&mop500_gpio_keys_device.dev, + "vcc"); + if (IS_ERR(prox_regulator)) { + dev_err(&mop500_gpio_keys_device.dev, + "no regulator\n"); + return PTR_ERR(prox_regulator); + } + regulator_enable(prox_regulator); + return 0; +} + +static void mop500_prox_deactivate(struct device *dev) +{ + regulator_disable(prox_regulator); + regulator_put(prox_regulator); +} + /* add any platform devices here - TODO */ static struct platform_device *platform_devs[] __initdata = { + &mop500_gpio_keys_device, }; static void __init mop500_spi_init(void) diff --git a/arch/arm/mach-ux500/board-mop500.h b/arch/arm/mach-ux500/board-mop500.h index fe22b84f89e..19b6c270d20 100644 --- a/arch/arm/mach-ux500/board-mop500.h +++ b/arch/arm/mach-ux500/board-mop500.h @@ -11,6 +11,7 @@ /* GPIOs on the TC35892 expander */ #define GPIO_SDMMC_CD MOP500_EGPIO(3) +#define GPIO_PROX_SENSOR MOP500_EGPIO(7) #define GPIO_BU21013_CS MOP500_EGPIO(13) #define GPIO_SDMMC_EN MOP500_EGPIO(17) #define GPIO_SDMMC_1V8_3V_SEL MOP500_EGPIO(18) |