ARM: mach-shmobile: ag5evm: scan keyboard support

This consists of platform device resources/data for the board, and
simple clvdev entry for MSTP bit for keysc module.

This support only 49 of 80 key-switches on the board.

Signed-off-by: Takashi YOSHII <takashi.yoshii.zj@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

2 files changed, 67 insertions, 1 deletions

diff --git a/arch/arm/mach-shmobile/board-ag5evm.c b/arch/arm/mach-shmobile/board-ag5evm.c
index e0bc0811dc48..4758690ea421 100644
--- a/arch/arm/mach-shmobile/board-ag5evm.c
+++ b/arch/arm/mach-shmobile/board-ag5evm.c
@@ -30,6 +30,9 @@
 #include <linux/serial_sci.h>
 #include <linux/smsc911x.h>
 #include <linux/gpio.h>
+#include <linux/input.h>
+#include <linux/input/sh_keysc.h>
+
 #include <mach/hardware.h>
 #include <mach/sh73a0.h>
 #include <mach/common.h>
@@ -70,8 +73,49 @@ static struct platform_device eth_device = {
         .num_resources  = ARRAY_SIZE(smsc9220_resources),
 };
 
+static struct sh_keysc_info keysc_platdata = {
+        .mode           = SH_KEYSC_MODE_6,
+        .scan_timing    = 3,
+        .delay          = 100,
+        .keycodes       = {
+                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, KEY_P, KEY_Q, KEY_R, KEY_S, KEY_T, KEY_U,
+                KEY_V, KEY_W, KEY_X, KEY_Y, KEY_Z, KEY_HOME, KEY_SLEEP,
+                KEY_SPACE, KEY_9, KEY_6, KEY_3, KEY_WAKEUP, KEY_RIGHT, \
+                KEY_COFFEE,
+                KEY_0, KEY_8, KEY_5, KEY_2, KEY_DOWN, KEY_ENTER, KEY_UP,
+                KEY_KPASTERISK, KEY_7, KEY_4, KEY_1, KEY_STOP, KEY_LEFT, \
+                KEY_COMPUTER,
+        },
+};
+
+static struct resource keysc_resources[] = {
+        [0] = {
+                .name   = "KEYSC",
+                .start  = 0xe61b0000,
+                .end    = 0xe61b0098 - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = gic_spi(71),
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device keysc_device = {
+        .name           = "sh_keysc",
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(keysc_resources),
+        .resource       = keysc_resources,
+        .dev            = {
+                .platform_data  = &keysc_platdata,
+        },
+};
+
 static struct platform_device *ag5evm_devices[] __initdata = {
         &eth_device,
+        &keysc_device,
 };
 
 static struct map_desc ag5evm_io_desc[] __initdata = {
@@ -129,6 +173,26 @@ static void __init ag5evm_init(void)
         gpio_request(GPIO_FN_SCIFA2_RTS1_, NULL);
         gpio_request(GPIO_FN_SCIFA2_CTS1_, NULL);
 
+        /* enable KEYSC */
+        gpio_request(GPIO_FN_KEYIN0, NULL);
+        gpio_request(GPIO_FN_KEYIN1, NULL);
+        gpio_request(GPIO_FN_KEYIN2, NULL);
+        gpio_request(GPIO_FN_KEYIN3, NULL);
+        gpio_request(GPIO_FN_KEYIN4, NULL);
+        gpio_request(GPIO_FN_KEYIN5, NULL);
+        gpio_request(GPIO_FN_KEYIN6, NULL);
+        gpio_request(GPIO_FN_KEYIN7, NULL);
+        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_KEYOUT5, NULL);
+        gpio_request(GPIO_FN_PORT59_KEYOUT6, NULL);
+        gpio_request(GPIO_FN_PORT58_KEYOUT7, NULL);
+        gpio_request(GPIO_FN_KEYOUT8, NULL);
+        gpio_request(GPIO_FN_PORT149_KEYOUT9, NULL);
+
         /* enable SMSC911X */
         gpio_request(GPIO_PORT144, NULL); /* PINTA2 */
         gpio_direction_input(GPIO_PORT144);
diff --git a/arch/arm/mach-shmobile/clock-sh73a0.c b/arch/arm/mach-shmobile/clock-sh73a0.c
index f2390aefefe8..82c72512dc91 100644
--- a/arch/arm/mach-shmobile/clock-sh73a0.c
+++ b/arch/arm/mach-shmobile/clock-sh73a0.c
@@ -47,7 +47,7 @@ static struct clk *main_clks[] = {
 
 enum { MSTP219,
         MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,
-        MSTP331, MSTP329,
+        MSTP331, MSTP329, MSTP403,
         MSTP_NR };
 
 #define MSTP(_parent, _reg, _bit, _flags) \
@@ -64,6 +64,7 @@ static struct clk mstp_clks[MSTP_NR] = {
         [MSTP200] = MSTP(&sub_clk, SMSTPCR2, 0, 0), /* SCIFA4 */
         [MSTP331] = MSTP(&sub_clk, SMSTPCR3, 31, 0), /* SCIFA6 */
         [MSTP329] = MSTP(&r_clk, SMSTPCR3, 29, 0), /* CMT10 */
+        [MSTP403] = MSTP(&r_clk, SMSTPCR4, 0, 0), /* KEYSC0 */
 };
 
 #define CLKDEV_DEV_ID(_id, _clk) { .dev_id = _id, .clk = _clk }
@@ -80,6 +81,7 @@ static struct clk_lookup lookups[] = {
         CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[MSTP200]), /* SCIFA4 */
         CLKDEV_DEV_ID("sh-sci.6", &mstp_clks[MSTP331]), /* SCIFA6 */
         CLKDEV_DEV_ID("sh_cmt.10", &mstp_clks[MSTP329]), /* CMT10 */
+        CLKDEV_DEV_ID("sh_keysc.0", &mstp_clks[MSTP403]), /* KEYSC0 */
 };
 
 void __init sh73a0_clock_init(void)