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ARM: EXYNOS4: Add qt602240 touch screen device on Universal_C210 

This patch adds definitions to enable support for qt602240 touch screen
driver for Universal C210 board.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Marek Szyprowski 2011-06-22 13:43:39 +09:00 committed by Kukjin Kim
parent b908af4499
commit 0b398b69e1
2 changed files with 49 additions and 0 deletions
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2
arch/arm/mach-exynos4/Kconfig
View File

@ -162,9 +162,11 @@ config MACH_UNIVERSAL_C210
select S3C_DEV_HSMMC2
select S3C_DEV_HSMMC3
select S3C_DEV_I2C1
select S3C_DEV_I2C3
select S3C_DEV_I2C5
select S5P_DEV_ONENAND
select EXYNOS4_SETUP_I2C1
select EXYNOS4_SETUP_I2C3
select EXYNOS4_SETUP_I2C5
select EXYNOS4_SETUP_SDHCI
help

47
arch/arm/mach-exynos4/mach-universal_c210.c
View File

@ -20,6 +20,7 @@
#include <linux/mmc/host.h>
#include <linux/i2c-gpio.h>
#include <linux/i2c/mcs.h>
#include <linux/i2c/atmel_mxt_ts.h>
#include <asm/mach/arch.h>
#include <asm/mach-types.h>
@ -29,6 +30,7 @@
#include <plat/cpu.h>
#include <plat/devs.h>
#include <plat/iic.h>
#include <plat/gpio-cfg.h>
#include <plat/sdhci.h>
#include <mach/map.h>
@ -479,6 +481,46 @@ static struct i2c_board_info i2c5_devs[] __initdata = {
},
};
/* I2C3 (TSP) */
static struct mxt_platform_data qt602240_platform_data = {
.x_line = 19,
.y_line = 11,
.x_size = 800,
.y_size = 480,
.blen = 0x11,
.threshold = 0x28,
.voltage = 2800000, /* 2.8V */
.orient = MXT_DIAGONAL,
};
static struct i2c_board_info i2c3_devs[] __initdata = {
{
I2C_BOARD_INFO("qt602240_ts", 0x4a),
.platform_data = &qt602240_platform_data,
},
};
static void __init universal_tsp_init(void)
{
int gpio;
/* TSP_LDO_ON: XMDMADDR_11 */
gpio = EXYNOS4_GPE2(3);
gpio_request(gpio, "TSP_LDO_ON");
gpio_direction_output(gpio, 1);
gpio_export(gpio, 0);
/* TSP_INT: XMDMADDR_7 */
gpio = EXYNOS4_GPE1(7);
gpio_request(gpio, "TSP_INT");
s5p_register_gpio_interrupt(gpio);
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(0xf));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_UP);
i2c3_devs[0].irq = gpio_to_irq(gpio);
}
/* GPIO I2C 12 (3 Touchkey) */
static uint32_t touchkey_keymap[] = {
/* MCS_KEY_MAP(value, keycode) */
@ -668,6 +710,7 @@ static struct platform_device *universal_devices[] __initdata = {
&s3c_device_hsmmc0,
&s3c_device_hsmmc2,
&s3c_device_hsmmc3,
&s3c_device_i2c3,
&s3c_device_i2c5,
/* Universal Devices */
@ -690,6 +733,10 @@ static void __init universal_machine_init(void)
i2c_register_board_info(0, i2c0_devs, ARRAY_SIZE(i2c0_devs));
i2c_register_board_info(1, i2c1_devs, ARRAY_SIZE(i2c1_devs));
universal_tsp_init();
s3c_i2c3_set_platdata(NULL);
i2c_register_board_info(3, i2c3_devs, ARRAY_SIZE(i2c3_devs));
s3c_i2c5_set_platdata(NULL);
i2c_register_board_info(5, i2c5_devs, ARRAY_SIZE(i2c5_devs));