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Commit 8810e055 authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Paul Mundt
Browse files

sh: mach-ecovec24: Add TouchScreen support 



Signed-off-by: default avatarKuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent fe1dbfd3

arch/sh/boards/mach-ecovec24/setup.c

+42 −0
Original line number Diff line number Diff line
@@ -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 */