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Commit a71b819b authored by Philippe Langlais's avatar Philippe Langlais Committed by Linus Walleij
Browse files

mach-ux500: platform data for SFH7741 proximity sensor driver 



Proximity sensor is managed as an input event (SW_PROXIMITY).

Signed-off-by: default avatarPhilippe Langlais <philippe.langlais@linaro.org>
[Named GPIO pin]
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent b3f1f73d

arch/arm/mach-ux500/board-mop500.c

+52 −0
Original line number Diff line number Diff line
@@ -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)

arch/arm/mach-ux500/board-mop500.h

+1 −0
Original line number Diff line number Diff line
@@ -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)