* Grazvydas Ignotas <notasas@xxxxxxxxx> [090527 12:48]:
> Add support for keypad, GPIO keys and LEDs. Also enable hardware
> debounce feature for GPIO keys.
>
> Signed-off-by: Grazvydas Ignotas <notasas@xxxxxxxxx>
> ---
> This patch was somehow left out, so Tony suggested posting it directly here.
Thanks, I've added this patch to my queue.
Tony
> arch/arm/mach-omap2/board-omap3pandora.c | 149 ++++++++++++++++++++++++++++++
> 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 2ab2497..e32aa23 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();
> }
>
> --
> 1.5.6.3
>
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