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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>
This commit is contained in:
Philippe Langlais 2011-01-14 10:53:59 +01:00 committed by Linus Walleij
parent b3f1f73d35
commit a71b819b6e
2 changed files with 53 additions and 0 deletions
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52
arch/arm/mach-ux500/board-mop500.c
View File

@ -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)

1
arch/arm/mach-ux500/board-mop500.h
View File

@ -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)