sh: mach-ecovec24: Add TouchScreen support
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/boards/mach-ecovec24/setup.c b/arch/sh/boards/mach-ecovec24/setup.c
index 5f9881e1..52912a6 100644
--- a/arch/sh/boards/mach-ecovec24/setup.c
+++ b/arch/sh/boards/mach-ecovec24/setup.c
@@ -18,6 +18,7 @@
#include <linux/delay.h>
#include <linux/usb/r8a66597.h>
#include <linux/i2c.h>
+#include <linux/i2c/tsc2007.h>
#include <linux/input.h>
#include <video/sh_mobile_lcdc.h>
#include <media/sh_mobile_ceu.h>
@@ -376,6 +377,43 @@
},
};
+/* TouchScreen */
+#define IRQ0 32
+static int ts_get_pendown_state(void)
+{
+ int val = 0;
+ gpio_free(GPIO_FN_INTC_IRQ0);
+ gpio_request(GPIO_PTZ0, NULL);
+ gpio_direction_input(GPIO_PTZ0);
+
+ val = gpio_get_value(GPIO_PTZ0);
+
+ gpio_free(GPIO_PTZ0);
+ gpio_request(GPIO_FN_INTC_IRQ0, NULL);
+
+ return val ? 0 : 1;
+}
+
+static int ts_init(void)
+{
+ gpio_request(GPIO_FN_INTC_IRQ0, NULL);
+ return 0;
+}
+
+struct tsc2007_platform_data tsc2007_info = {
+ .model = 2007,
+ .x_plate_ohms = 180,
+ .get_pendown_state = ts_get_pendown_state,
+ .init_platform_hw = ts_init,
+};
+
+static struct i2c_board_info ts_i2c_clients = {
+ I2C_BOARD_INFO("tsc2007", 0x48),
+ .type = "tsc2007",
+ .platform_data = &tsc2007_info,
+ .irq = IRQ0,
+};
+
static struct platform_device *ecovec_devices[] __initdata = {
&heartbeat_device,
&nor_flash_device,
@@ -590,6 +628,10 @@
*/
gpio_request(GPIO_PTF4, NULL);
gpio_direction_output(GPIO_PTF4, 1);
+
+ /* enable TouchScreen */
+ i2c_register_board_info(0, &ts_i2c_clients, 1);
+ set_irq_type(IRQ0, IRQ_TYPE_LEVEL_LOW);
}
/* enable CEU0 */