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 2ab24975b68..e32aa23ce96 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();
 }