OMAP4: keypad: Add the board support

-Add the platform changes for the keypad driver
-Register keyboard device with hwmod framework.

Signed-off-by: Syed Rafiuddin <rafiuddin.syed@ti.com>
Signed-off-by: Abraham Arce <x0066660@ti.com>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

2 files changed, 130 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c
index 12d99e582cd6..dcc8b27e3033 100644
--- a/arch/arm/mach-omap2/board-4430sdp.c
+++ b/arch/arm/mach-omap2/board-4430sdp.c
@@ -35,6 +35,7 @@
 #include <plat/common.h>
 #include <plat/usb.h>
 #include <plat/mmc.h>
+#include <plat/omap4-keypad.h>
 
 #include "mux.h"
 #include "hsmmc.h"
@@ -48,6 +49,90 @@
 #define OMAP4_SFH7741_SENSOR_OUTPUT_GPIO        184
 #define OMAP4_SFH7741_ENABLE_GPIO               188
 
+static const int sdp4430_keymap[] = {
+        KEY(0, 0, KEY_E),
+        KEY(0, 1, KEY_R),
+        KEY(0, 2, KEY_T),
+        KEY(0, 3, KEY_HOME),
+        KEY(0, 4, KEY_F5),
+        KEY(0, 5, KEY_UNKNOWN),
+        KEY(0, 6, KEY_I),
+        KEY(0, 7, KEY_LEFTSHIFT),
+
+        KEY(1, 0, KEY_D),
+        KEY(1, 1, KEY_F),
+        KEY(1, 2, KEY_G),
+        KEY(1, 3, KEY_SEND),
+        KEY(1, 4, KEY_F6),
+        KEY(1, 5, KEY_UNKNOWN),
+        KEY(1, 6, KEY_K),
+        KEY(1, 7, KEY_ENTER),
+
+        KEY(2, 0, KEY_X),
+        KEY(2, 1, KEY_C),
+        KEY(2, 2, KEY_V),
+        KEY(2, 3, KEY_END),
+        KEY(2, 4, KEY_F7),
+        KEY(2, 5, KEY_UNKNOWN),
+        KEY(2, 6, KEY_DOT),
+        KEY(2, 7, KEY_CAPSLOCK),
+
+        KEY(3, 0, KEY_Z),
+        KEY(3, 1, KEY_KPPLUS),
+        KEY(3, 2, KEY_B),
+        KEY(3, 3, KEY_F1),
+        KEY(3, 4, KEY_F8),
+        KEY(3, 5, KEY_UNKNOWN),
+        KEY(3, 6, KEY_O),
+        KEY(3, 7, KEY_SPACE),
+
+        KEY(4, 0, KEY_W),
+        KEY(4, 1, KEY_Y),
+        KEY(4, 2, KEY_U),
+        KEY(4, 3, KEY_F2),
+        KEY(4, 4, KEY_VOLUMEUP),
+        KEY(4, 5, KEY_UNKNOWN),
+        KEY(4, 6, KEY_L),
+        KEY(4, 7, KEY_LEFT),
+
+        KEY(5, 0, KEY_S),
+        KEY(5, 1, KEY_H),
+        KEY(5, 2, KEY_J),
+        KEY(5, 3, KEY_F3),
+        KEY(5, 4, KEY_F9),
+        KEY(5, 5, KEY_VOLUMEDOWN),
+        KEY(5, 6, KEY_M),
+        KEY(5, 7, KEY_RIGHT),
+
+        KEY(6, 0, KEY_Q),
+        KEY(6, 1, KEY_A),
+        KEY(6, 2, KEY_N),
+        KEY(6, 3, KEY_BACK),
+        KEY(6, 4, KEY_BACKSPACE),
+        KEY(6, 5, KEY_UNKNOWN),
+        KEY(6, 6, KEY_P),
+        KEY(6, 7, KEY_UP),
+
+        KEY(7, 0, KEY_PROG1),
+        KEY(7, 1, KEY_PROG2),
+        KEY(7, 2, KEY_PROG3),
+        KEY(7, 3, KEY_PROG4),
+        KEY(7, 4, KEY_F4),
+        KEY(7, 5, KEY_UNKNOWN),
+        KEY(7, 6, KEY_OK),
+        KEY(7, 7, KEY_DOWN),
+};
+
+static struct matrix_keymap_data sdp4430_keymap_data = {
+        .keymap                 = sdp4430_keymap,
+        .keymap_size            = ARRAY_SIZE(sdp4430_keymap),
+};
+
+static struct omap4_keypad_platform_data sdp4430_keypad_data = {
+        .keymap_data            = &sdp4430_keymap_data,
+        .rows                   = 8,
+        .cols                   = 8,
+};
 static struct gpio_led sdp4430_gpio_leds[] = {
         {
                 .name   = "omap4:green:debug0",
@@ -593,6 +678,10 @@ static void __init omap_4430sdp_init(void)
                 spi_register_board_info(sdp4430_spi_board_info,
                                 ARRAY_SIZE(sdp4430_spi_board_info));
         }
+
+        status = omap4_keyboard_init(&sdp4430_keypad_data);
+        if (status)
+                pr_err("Keypad initialization failed: %d\n", status);
 }
 
 static void __init omap_4430sdp_map_io(void)
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index e0f0ef952bc9..8800486f9467 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -30,6 +30,7 @@
 #include <plat/dma.h>
 #include <plat/omap_hwmod.h>
 #include <plat/omap_device.h>
+#include <plat/omap4-keypad.h>
 
 #include "mux.h"
 #include "control.h"
@@ -141,6 +142,46 @@ static inline void omap_init_camera(void)
 }
 #endif
 
+struct omap_device_pm_latency omap_keyboard_latency[] = {
+        {
+                .deactivate_func = omap_device_idle_hwmods,
+                .activate_func   = omap_device_enable_hwmods,
+                .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
+        },
+};
+
+int __init omap4_keyboard_init(struct omap4_keypad_platform_data
+                                                *sdp4430_keypad_data)
+{
+        struct omap_device *od;
+        struct omap_hwmod *oh;
+        struct omap4_keypad_platform_data *keypad_data;
+        unsigned int id = -1;
+        char *oh_name = "kbd";
+        char *name = "omap4-keypad";
+
+        oh = omap_hwmod_lookup(oh_name);
+        if (!oh) {
+                pr_err("Could not look up %s\n", oh_name);
+                return -ENODEV;
+        }
+
+        keypad_data = sdp4430_keypad_data;
+
+        od = omap_device_build(name, id, oh, keypad_data,
+                        sizeof(struct omap4_keypad_platform_data),
+                        omap_keyboard_latency,
+                        ARRAY_SIZE(omap_keyboard_latency), 0);
+
+        if (IS_ERR(od)) {
+                WARN(1, "Cant build omap_device for %s:%s.\n",
+                                                name, oh->name);
+                return PTR_ERR(od);
+        }
+
+        return 0;
+}
+
 #if defined(CONFIG_OMAP_MBOX_FWK) || defined(CONFIG_OMAP_MBOX_FWK_MODULE)
 
 #define MBOX_REG_SIZE   0x120