ARM: mach-shmobile: ap4evb: Add KEYSC support

Because AP4 board has capacitor for KEYSC,
we need much time for waiting.

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 61 insertions, 0 deletions

diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c
index d9a46d0ce01c..a0463d926447 100644
--- a/arch/arm/mach-shmobile/board-ap4evb.c
+++ b/arch/arm/mach-shmobile/board-ap4evb.c
@@ -29,6 +29,8 @@
 #include <linux/io.h>
 #include <linux/smsc911x.h>
 #include <linux/gpio.h>
+#include <linux/input.h>
+#include <linux/input/sh_keysc.h>
 #include <mach/common.h>
 #include <mach/sh7372.h>
 #include <asm/mach-types.h>
@@ -77,6 +79,15 @@
  *  OFF         access enable
  */
 
+/*
+ * KEYSC
+ *
+ * SW43         KEYSC
+ * -------------------------
+ * ON           enable
+ * OFF          disable
+ */
+
 /* MTD */
 static struct mtd_partition nor_flash_partitions[] = {
         {
@@ -158,9 +169,47 @@ static struct platform_device smc911x_device = {
         },
 };
 
+/* KEYSC (Needs SW43 set to ON) */
+static struct sh_keysc_info keysc_info = {
+        .mode           = SH_KEYSC_MODE_1,
+        .scan_timing    = 3,
+        .delay          = 2500,
+        .keycodes = {
+                KEY_0, KEY_1, KEY_2, KEY_3, KEY_4,
+                KEY_5, KEY_6, KEY_7, KEY_8, KEY_9,
+                KEY_A, KEY_B, KEY_C, KEY_D, KEY_E,
+                KEY_F, KEY_G, KEY_H, KEY_I, KEY_J,
+                KEY_K, KEY_L, KEY_M, KEY_N, KEY_O,
+        },
+};
+
+static struct resource keysc_resources[] = {
+        [0] = {
+                .name   = "KEYSC",
+                .start  = 0xe61b0000,
+                .end    = 0xe61b0063,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = 79,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device keysc_device = {
+        .name           = "sh_keysc",
+        .id             = 0, /* "keysc0" clock */
+        .num_resources  = ARRAY_SIZE(keysc_resources),
+        .resource       = keysc_resources,
+        .dev    = {
+                .platform_data  = &keysc_info,
+        },
+};
+
 static struct platform_device *ap4evb_devices[] __initdata = {
         &nor_flash_device,
         &smc911x_device,
+        &keysc_device,
 };
 
 static struct map_desc ap4evb_io_desc[] __initdata = {
@@ -225,6 +274,18 @@ static void __init ap4evb_init(void)
         gpio_export(GPIO_PORT34, 0);
         gpio_export(GPIO_PORT35, 0);
 
+        /* enable KEYSC */
+        gpio_request(GPIO_FN_KEYOUT0, NULL);
+        gpio_request(GPIO_FN_KEYOUT1, NULL);
+        gpio_request(GPIO_FN_KEYOUT2, NULL);
+        gpio_request(GPIO_FN_KEYOUT3, NULL);
+        gpio_request(GPIO_FN_KEYOUT4, NULL);
+        gpio_request(GPIO_FN_KEYIN0_136, NULL);
+        gpio_request(GPIO_FN_KEYIN1_135, NULL);
+        gpio_request(GPIO_FN_KEYIN2_134, NULL);
+        gpio_request(GPIO_FN_KEYIN3_133, NULL);
+        gpio_request(GPIO_FN_KEYIN4,     NULL);
+
         sh7372_add_standard_devices();
 
         platform_add_devices(ap4evb_devices, ARRAY_SIZE(ap4evb_devices));