ARM: mach-shmobile: ap4evb: 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/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c
index 1c2ec96ce2610c88a9292b7edcf6adc1f390b808..b10431451f39625afdba2a9e3e754c7db249d786 100644 (file)
--- a/arch/arm/mach-shmobile/board-ap4evb.c
+++ b/arch/arm/mach-shmobile/board-ap4evb.c
@@ -26,6 +26,8 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/physmap.h>
+#include <linux/i2c.h>
+#include <linux/i2c/tsc2007.h>
 #include <linux/io.h>
 #include <linux/smsc911x.h>
 #include <linux/gpio.h>
@@ -234,6 +236,23 @@ static struct platform_device *ap4evb_devices[] __initdata = {
        &sdhi0_device,
 };
 
+/* TouchScreen */
+#define IRQ28  396
+struct tsc2007_platform_data tsc2007_info = {
+       .model                  = 2007,
+       .x_plate_ohms           = 180,
+};
+
+/* I2C */
+static struct i2c_board_info i2c1_devices[] = {
+       {
+               I2C_BOARD_INFO("tsc2007", 0x48),
+               .type           = "tsc2007",
+               .platform_data  = &tsc2007_info,
+               .irq            = IRQ28,
+       },
+};
+
 static struct map_desc ap4evb_io_desc[] __initdata = {
        /* create a 1:1 entity map for 0xe6xxxxxx
         * used by CPGA, INTC and PFC.
@@ -318,6 +337,13 @@ static void __init ap4evb_init(void)
        gpio_request(GPIO_FN_SDHID0_1, NULL);
        gpio_request(GPIO_FN_SDHID0_0, NULL);
 
+       /* enable TouchScreen */
+       gpio_request(GPIO_FN_IRQ28_123, NULL);
+       set_irq_type(IRQ28, IRQ_TYPE_LEVEL_LOW);
+
+       i2c_register_board_info(1, i2c1_devices,
+                               ARRAY_SIZE(i2c1_devices));
+
        sh7372_add_standard_devices();
 
        platform_add_devices(ap4evb_devices, ARRAY_SIZE(ap4evb_devices));