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Commit b908af44 authored by Marek Szyprowski's avatar Marek Szyprowski Committed by Kukjin Kim
Browse files

ARM: EXYNOS4: Add MCS Touchkey device on Universal_C210 



This patch adds definitions to enable support for MCS Touchkey driver
for Universal C210 board.

Signed-off-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
parent edd967b8

arch/arm/mach-exynos4/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -153,6 +153,7 @@ config MACH_ARMLEX4210 
config MACH_UNIVERSAL_C210

	bool "Mobile UNIVERSAL_C210 Board"

	select CPU_EXYNOS4210

	select S5P_GPIO_INT

	select S5P_DEV_FIMC0

	select S5P_DEV_FIMC1

	select S5P_DEV_FIMC2

arch/arm/mach-exynos4/mach-universal_c210.c

+57 −0
Original line number Diff line number Diff line
@@ -18,6 +18,8 @@ 
#include <linux/regulator/fixed.h>

#include <linux/regulator/max8952.h>

#include <linux/mmc/host.h>

#include <linux/i2c-gpio.h>

#include <linux/i2c/mcs.h>



#include <asm/mach/arch.h>

#include <asm/mach-types.h>
@@ -477,6 +479,56 @@ static struct i2c_board_info i2c5_devs[] __initdata = { 
	},

};



/* GPIO I2C 12 (3 Touchkey) */

static uint32_t touchkey_keymap[] = {

	/* MCS_KEY_MAP(value, keycode) */

	MCS_KEY_MAP(0, KEY_MENU),		/* KEY_SEND */

	MCS_KEY_MAP(1, KEY_BACK),		/* KEY_END */

};



static struct mcs_platform_data touchkey_data = {

	.keymap		= touchkey_keymap,

	.keymap_size	= ARRAY_SIZE(touchkey_keymap),

	.key_maxval	= 2,

};



/* GPIO I2C 3_TOUCH 2.8V */

#define I2C_GPIO_BUS_12		12

static struct i2c_gpio_platform_data i2c_gpio12_data = {

	.sda_pin	= EXYNOS4_GPE4(0),	/* XMDMDATA_8 */

	.scl_pin	= EXYNOS4_GPE4(1),	/* XMDMDATA_9 */

};



static struct platform_device i2c_gpio12 = {

	.name		= "i2c-gpio",

	.id		= I2C_GPIO_BUS_12,

	.dev		= {

		.platform_data	= &i2c_gpio12_data,

	},

};



static struct i2c_board_info i2c_gpio12_devs[] __initdata = {

	{

		I2C_BOARD_INFO("mcs5080_touchkey", 0x20),

		.platform_data = &touchkey_data,

	},

};



static void __init universal_touchkey_init(void)

{

	int gpio;



	gpio = EXYNOS4_GPE3(7);			/* XMDMDATA_7 */

	gpio_request(gpio, "3_TOUCH_INT");

	s5p_register_gpio_interrupt(gpio);

	s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(0xf));

	i2c_gpio12_devs[0].irq = gpio_to_irq(gpio);



	gpio = EXYNOS4_GPE3(3);			/* XMDMDATA_3 */

	gpio_request(gpio, "3_TOUCH_EN");

	gpio_direction_output(gpio, 1);

}



/* GPIO KEYS */

static struct gpio_keys_button universal_gpio_keys_tables[] = {

	{
@@ -619,6 +671,7 @@ static struct platform_device *universal_devices[] __initdata = { 
	&s3c_device_i2c5,



	/* Universal Devices */

	&i2c_gpio12,

	&universal_gpio_keys,

	&s5p_device_onenand,

};
@@ -640,6 +693,10 @@ static void __init universal_machine_init(void) 
	s3c_i2c5_set_platdata(NULL);

	i2c_register_board_info(5, i2c5_devs, ARRAY_SIZE(i2c5_devs));



	universal_touchkey_init();

	i2c_register_board_info(I2C_GPIO_BUS_12, i2c_gpio12_devs,

			ARRAY_SIZE(i2c_gpio12_devs));



	/* Last */

	platform_add_devices(universal_devices, ARRAY_SIZE(universal_devices));

}