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sh: mach-ecovec24: Add TouchScreen support

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Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Kuninori Morimoto 2009-09-28 08:21:41 +00:00 committed by Paul Mundt
parent fe1dbfd3f9
commit 8810e0553f
1 changed files with 42 additions and 0 deletions
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42
arch/sh/boards/mach-ecovec24/setup.c
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@ -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 @@ static struct platform_device keysc_device = {
},
};
/* 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 @@ static int __init arch_setup(void)
*/
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 */