From 6b7c0ea21226972e08ebb71e134fbebdf7459d1a Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Thu, 18 Aug 2011 05:44:25 +0000
Subject: [PATCH] ARM: mach-shmobile: Kota2 GPIO Keys support

This patch ties in GPIO Keys support on the Kota2
board. For now the keys are used in polling mode,
but after extending the sh73a0 PFC with IRQ support
we should be able to switch to the IRQ driven driver.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/arm/mach-shmobile/board-kota2.c | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/arch/arm/mach-shmobile/board-kota2.c b/arch/arm/mach-shmobile/board-kota2.c
index 8a6b85a..849423c 100644
--- a/arch/arm/mach-shmobile/board-kota2.c
+++ b/arch/arm/mach-shmobile/board-kota2.c
@@ -31,6 +31,7 @@
 #include <linux/gpio.h>
 #include <linux/input.h>
 #include <linux/input/sh_keysc.h>
+#include <linux/gpio_keys.h>
 #include <mach/hardware.h>
 #include <mach/sh73a0.h>
 #include <mach/common.h>
@@ -114,9 +115,40 @@ static struct platform_device keysc_device = {
 	},
 };
 
+#define GPIO_KEY(c, g, d) { .code = c, .gpio = g, .desc = d, .active_low = 1 }
+
+static struct gpio_keys_button gpio_buttons[] = {
+	GPIO_KEY(KEY_VOLUMEUP, GPIO_PORT56, "+"), /* S2: VOL+ [IRQ9] */
+	GPIO_KEY(KEY_VOLUMEDOWN, GPIO_PORT54, "-"), /* S3: VOL- [IRQ10] */
+	GPIO_KEY(KEY_MENU, GPIO_PORT27, "Menu"), /* S4: MENU [IRQ30] */
+	GPIO_KEY(KEY_HOMEPAGE, GPIO_PORT26, "Home"), /* S5: HOME [IRQ31] */
+	GPIO_KEY(KEY_BACK, GPIO_PORT11, "Back"), /* S6: BACK [IRQ0] */
+	GPIO_KEY(KEY_PHONE, GPIO_PORT238, "Tel"), /* S7: TEL [IRQ11] */
+	GPIO_KEY(KEY_POWER, GPIO_PORT239, "C1"), /* S8: CAM [IRQ13] */
+	GPIO_KEY(KEY_MAIL, GPIO_PORT224, "Mail"), /* S9: MAIL [IRQ3] */
+	/* Omitted button "C3?": GPIO_PORT223 - S10: CUST [IRQ8] */
+	GPIO_KEY(KEY_CAMERA, GPIO_PORT164, "C2"), /* S11: CAM_HALF [IRQ25] */
+	/* Omitted button "?": GPIO_PORT152 - S12: CAM_FULL [No IRQ] */
+};
+
+static struct gpio_keys_platform_data gpio_key_info = {
+	.buttons        = gpio_buttons,
+	.nbuttons       = ARRAY_SIZE(gpio_buttons),
+	.poll_interval  = 250, /* polled for now */
+};
+
+static struct platform_device gpio_keys_device = {
+	.name   = "gpio-keys-polled", /* polled for now */
+	.id     = -1,
+	.dev    = {
+		.platform_data  = &gpio_key_info,
+	},
+};
+
 static struct platform_device *kota2_devices[] __initdata = {
 	&eth_device,
 	&keysc_device,
+	&gpio_keys_device,
 };
 
 static struct map_desc kota2_io_desc[] __initdata = {
-- 
2.7.4