ARM: OMAP3: pandora: add support for mode devices

Add support for keypad, GPIO keys and LEDs. Also enable hardware
debounce feature for GPIO keys.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 149 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/board-omap3pandora.c b/arch/arm/mach-omap2/board-omap3pandora.c
index 2ab24975b685..e32aa23ce962 100644
--- a/arch/arm/mach-omap2/board-omap3pandora.c
+++ b/arch/arm/mach-omap2/board-omap3pandora.c
@@ -25,6 +25,9 @@
 #include <linux/spi/ads7846.h>
 #include <linux/regulator/machine.h>
 #include <linux/i2c/twl4030.h>
+#include <linux/leds.h>
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -36,12 +39,154 @@
 #include <mach/hardware.h>
 #include <mach/mcspi.h>
 #include <mach/usb.h>
+#include <mach/keypad.h>
 
 #include "sdram-micron-mt46h32m32lf-6.h"
 #include "mmc-twl4030.h"
 
 #define OMAP3_PANDORA_TS_GPIO           94
 
+/* hardware debounce: (value + 1) * 31us */
+#define GPIO_DEBOUNCE_TIME              127
+
+static struct gpio_led pandora_gpio_leds[] = {
+        {
+                .name                   = "pandora::sd1",
+                .default_trigger        = "mmc0",
+                .gpio                   = 128,
+        }, {
+                .name                   = "pandora::sd2",
+                .default_trigger        = "mmc1",
+                .gpio                   = 129,
+        }, {
+                .name                   = "pandora::bluetooth",
+                .gpio                   = 158,
+        }, {
+                .name                   = "pandora::wifi",
+                .gpio                   = 159,
+        },
+};
+
+static struct gpio_led_platform_data pandora_gpio_led_data = {
+        .leds           = pandora_gpio_leds,
+        .num_leds       = ARRAY_SIZE(pandora_gpio_leds),
+};
+
+static struct platform_device pandora_leds_gpio = {
+        .name   = "leds-gpio",
+        .id     = -1,
+        .dev    = {
+                .platform_data  = &pandora_gpio_led_data,
+        },
+};
+
+#define GPIO_BUTTON(gpio_num, ev_type, ev_code, act_low, descr) \
+{                                                               \
+        .gpio           = gpio_num,                             \
+        .type           = ev_type,                              \
+        .code           = ev_code,                              \
+        .active_low     = act_low,                              \
+        .desc           = "btn " descr,                         \
+}
+
+#define GPIO_BUTTON_LOW(gpio_num, event_code, description)      \
+        GPIO_BUTTON(gpio_num, EV_KEY, event_code, 1, description)
+
+static struct gpio_keys_button pandora_gpio_keys[] = {
+        GPIO_BUTTON_LOW(110,    KEY_UP,         "up"),
+        GPIO_BUTTON_LOW(103,    KEY_DOWN,       "down"),
+        GPIO_BUTTON_LOW(96,     KEY_LEFT,       "left"),
+        GPIO_BUTTON_LOW(98,     KEY_RIGHT,      "right"),
+        GPIO_BUTTON_LOW(111,    BTN_A,          "a"),
+        GPIO_BUTTON_LOW(106,    BTN_B,          "b"),
+        GPIO_BUTTON_LOW(109,    BTN_X,          "x"),
+        GPIO_BUTTON_LOW(101,    BTN_Y,          "y"),
+        GPIO_BUTTON_LOW(102,    BTN_TL,         "l"),
+        GPIO_BUTTON_LOW(97,     BTN_TL2,        "l2"),
+        GPIO_BUTTON_LOW(105,    BTN_TR,         "r"),
+        GPIO_BUTTON_LOW(107,    BTN_TR2,        "r2"),
+        GPIO_BUTTON_LOW(104,    KEY_LEFTCTRL,   "ctrl"),
+        GPIO_BUTTON_LOW(99,     KEY_MENU,       "menu"),
+        GPIO_BUTTON_LOW(176,    KEY_COFFEE,     "hold"),
+        GPIO_BUTTON(100, EV_KEY, KEY_LEFTALT, 0, "alt"),
+        GPIO_BUTTON(108, EV_SW, SW_LID, 1, "lid"),
+};
+
+static struct gpio_keys_platform_data pandora_gpio_key_info = {
+        .buttons        = pandora_gpio_keys,
+        .nbuttons       = ARRAY_SIZE(pandora_gpio_keys),
+};
+
+static struct platform_device pandora_keys_gpio = {
+        .name   = "gpio-keys",
+        .id     = -1,
+        .dev    = {
+                .platform_data  = &pandora_gpio_key_info,
+        },
+};
+
+static void __init pandora_keys_gpio_init(void)
+{
+        /* set debounce time for GPIO banks 4 and 6 */
+        omap_set_gpio_debounce_time(32 * 3, GPIO_DEBOUNCE_TIME);
+        omap_set_gpio_debounce_time(32 * 5, GPIO_DEBOUNCE_TIME);
+}
+
+static int pandora_keypad_map[] = {
+        /* col, row, code */
+        KEY(0, 0, KEY_9),
+        KEY(0, 1, KEY_0),
+        KEY(0, 2, KEY_BACKSPACE),
+        KEY(0, 3, KEY_O),
+        KEY(0, 4, KEY_P),
+        KEY(0, 5, KEY_K),
+        KEY(0, 6, KEY_L),
+        KEY(0, 7, KEY_ENTER),
+        KEY(1, 0, KEY_8),
+        KEY(1, 1, KEY_7),
+        KEY(1, 2, KEY_6),
+        KEY(1, 3, KEY_5),
+        KEY(1, 4, KEY_4),
+        KEY(1, 5, KEY_3),
+        KEY(1, 6, KEY_2),
+        KEY(1, 7, KEY_1),
+        KEY(2, 0, KEY_I),
+        KEY(2, 1, KEY_U),
+        KEY(2, 2, KEY_Y),
+        KEY(2, 3, KEY_T),
+        KEY(2, 4, KEY_R),
+        KEY(2, 5, KEY_E),
+        KEY(2, 6, KEY_W),
+        KEY(2, 7, KEY_Q),
+        KEY(3, 0, KEY_J),
+        KEY(3, 1, KEY_H),
+        KEY(3, 2, KEY_G),
+        KEY(3, 3, KEY_F),
+        KEY(3, 4, KEY_D),
+        KEY(3, 5, KEY_S),
+        KEY(3, 6, KEY_A),
+        KEY(3, 7, KEY_LEFTSHIFT),
+        KEY(4, 0, KEY_N),
+        KEY(4, 1, KEY_B),
+        KEY(4, 2, KEY_V),
+        KEY(4, 3, KEY_C),
+        KEY(4, 4, KEY_X),
+        KEY(4, 5, KEY_Z),
+        KEY(4, 6, KEY_DOT),
+        KEY(4, 7, KEY_COMMA),
+        KEY(5, 0, KEY_M),
+        KEY(5, 1, KEY_SPACE),
+        KEY(5, 2, KEY_FN),
+};
+
+static struct twl4030_keypad_data pandora_kp_data = {
+        .rows           = 8,
+        .cols           = 6,
+        .keymap         = pandora_keypad_map,
+        .keymapsize     = ARRAY_SIZE(pandora_keypad_map),
+        .rep            = 1,
+};
+
 static struct twl4030_hsmmc_info omap3pandora_mmc[] = {
         {
                 .mmc            = 1,
@@ -142,6 +287,7 @@ static struct twl4030_platform_data omap3pandora_twldata = {
         .usb            = &omap3pandora_usb_data,
         .vmmc1          = &pandora_vmmc1,
         .vmmc2          = &pandora_vmmc2,
+        .keypad         = &pandora_kp_data,
 };
 
 static struct i2c_board_info __initdata omap3pandora_i2c_boardinfo[] = {
@@ -234,6 +380,8 @@ static struct omap_board_config_kernel omap3pandora_config[] __initdata = {
 
 static struct platform_device *omap3pandora_devices[] __initdata = {
         &omap3pandora_lcd_device,
+        &pandora_leds_gpio,
+        &pandora_keys_gpio,
 };
 
 static void __init omap3pandora_init(void)
@@ -247,6 +395,7 @@ static void __init omap3pandora_init(void)
         spi_register_board_info(omap3pandora_spi_board_info,
                         ARRAY_SIZE(omap3pandora_spi_board_info));
         omap3pandora_ads7846_init();
+        pandora_keys_gpio_init();
         usb_musb_init();
 }