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Commit 3260ecd8 authored by Joonyoung Shim's avatar Joonyoung Shim Committed by Kukjin Kim
Browse files

ARM: EXYNOS4: Add Atmel mXT touchscreen device to the NURI board 



This patch is to support Atmel mXT touchscreen device to the NURI board.

Signed-off-by: default avatarJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
parent 3d739985

arch/arm/mach-exynos4/Kconfig

+2 −0
Original line number Diff line number Diff line
@@ -169,8 +169,10 @@ config MACH_NURI 
	select S3C_DEV_HSMMC2

	select S3C_DEV_HSMMC3

	select S3C_DEV_I2C1

	select S3C_DEV_I2C3

	select S3C_DEV_I2C5

	select EXYNOS4_SETUP_I2C1

	select EXYNOS4_SETUP_I2C3

	select EXYNOS4_SETUP_I2C5

	select EXYNOS4_SETUP_SDHCI

	select SAMSUNG_DEV_PWM

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

+89 −0
Original line number Diff line number Diff line
@@ -12,6 +12,7 @@ 
#include <linux/serial_core.h>

#include <linux/input.h>

#include <linux/i2c.h>

#include <linux/i2c/atmel_mxt_ts.h>

#include <linux/gpio_keys.h>

#include <linux/gpio.h>

#include <linux/regulator/machine.h>
@@ -30,6 +31,8 @@ 
#include <plat/cpu.h>

#include <plat/devs.h>

#include <plat/sdhci.h>

#include <plat/gpio-cfg.h>

#include <plat/iic.h>



#include <mach/map.h>
@@ -257,6 +260,88 @@ static struct i2c_board_info i2c1_devs[] __initdata = { 
	/* Gyro, To be updated */

};



/* TSP */

static u8 mxt_init_vals[] = {

	/* MXT_GEN_COMMAND(6) */

	0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

	/* MXT_GEN_POWER(7) */

	0x20, 0xff, 0x32,

	/* MXT_GEN_ACQUIRE(8) */

	0x0a, 0x00, 0x05, 0x00, 0x00, 0x00, 0x09, 0x23,

	/* MXT_TOUCH_MULTI(9) */

	0x00, 0x00, 0x00, 0x13, 0x0b, 0x00, 0x00, 0x00, 0x02, 0x00,

	0x00, 0x01, 0x01, 0x0e, 0x0a, 0x0a, 0x0a, 0x0a, 0x00, 0x00,

	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

	0x00,

	/* MXT_TOUCH_KEYARRAY(15) */

	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00,

	0x00,

	/* MXT_SPT_GPIOPWM(19) */

	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

	0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

	/* MXT_PROCI_GRIPFACE(20) */

	0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x28, 0x04,

	0x0f, 0x0a,

	/* MXT_PROCG_NOISE(22) */

	0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x23, 0x00,

	0x00, 0x05, 0x0f, 0x19, 0x23, 0x2d, 0x03,

	/* MXT_TOUCH_PROXIMITY(23) */

	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

	0x00, 0x00, 0x00, 0x00, 0x00,

	/* MXT_PROCI_ONETOUCH(24) */

	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

	/* MXT_SPT_SELFTEST(25) */

	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

	0x00, 0x00, 0x00, 0x00,

	/* MXT_PROCI_TWOTOUCH(27) */

	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

	/* MXT_SPT_CTECONFIG(28) */

	0x00, 0x00, 0x02, 0x08, 0x10, 0x00,

};



static struct mxt_platform_data mxt_platform_data = {

	.config			= mxt_init_vals,

	.config_length		= ARRAY_SIZE(mxt_init_vals),



	.x_line			= 18,

	.y_line			= 11,

	.x_size			= 1024,

	.y_size			= 600,

	.blen			= 0x1,

	.threshold		= 0x28,

	.voltage		= 2800000,		/* 2.8V */

	.orient			= MXT_DIAGONAL_COUNTER,

	.irqflags		= IRQF_TRIGGER_FALLING,

};



static struct s3c2410_platform_i2c i2c3_data __initdata = {

	.flags		= 0,

	.bus_num	= 3,

	.slave_addr	= 0x10,

	.frequency	= 400 * 1000,

	.sda_delay	= 100,

};



static struct i2c_board_info i2c3_devs[] __initdata = {

	{

		I2C_BOARD_INFO("atmel_mxt_ts", 0x4a),

		.platform_data	= &mxt_platform_data,

		.irq		= IRQ_EINT(4),

	},

};



static void __init nuri_tsp_init(void)

{

	int gpio;



	/* TOUCH_INT: XEINT_4 */

	gpio = EXYNOS4_GPX0(4);

	gpio_request(gpio, "TOUCH_INT");

	s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(0xf));

	s3c_gpio_setpull(gpio, S3C_GPIO_PULL_UP);

}



/* GPIO I2C 5 (PMIC) */

static struct i2c_board_info i2c5_devs[] __initdata = {

	/* max8997, To be updated */
@@ -270,6 +355,7 @@ static struct platform_device *nuri_devices[] __initdata = { 
	&s3c_device_hsmmc3,

	&s3c_device_wdt,

	&s3c_device_timer[0],

	&s3c_device_i2c3,



	/* NURI Devices */

	&nuri_gpio_keys,
@@ -287,8 +373,11 @@ static void __init nuri_map_io(void) 
static void __init nuri_machine_init(void)

{

	nuri_sdhci_init();

	nuri_tsp_init();



	i2c_register_board_info(1, i2c1_devs, ARRAY_SIZE(i2c1_devs));

	s3c_i2c3_set_platdata(&i2c3_data);

	i2c_register_board_info(3, i2c3_devs, ARRAY_SIZE(i2c3_devs));

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



	/* Last */