This patch adds definitions to enable support for MCS Touchkey driver
for Universal C210 board.
Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
arch/arm/mach-exynos4/Kconfig | 1 +
arch/arm/mach-exynos4/mach-universal_c210.c | 57 +++++++++++++++++++++++++++
2 files changed, 58 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-exynos4/Kconfig b/arch/arm/mach-exynos4/Kconfig
index 32a96f4..0848243 100644
--- a/arch/arm/mach-exynos4/Kconfig
+++ b/arch/arm/mach-exynos4/Kconfig
@@ -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
diff --git a/arch/arm/mach-exynos4/mach-universal_c210.c b/arch/arm/mach-exynos4/mach-universal_c210.c
index 65f8d62..53bf35f 100644
--- a/arch/arm/mach-exynos4/mach-universal_c210.c
+++ b/arch/arm/mach-exynos4/mach-universal_c210.c
@@ -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));
}
--
1.7.1.569.g6f426
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