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Commit cce18a94 authored by Steve Sakoman's avatar Steve Sakoman Committed by Tomi Valkeinen
Browse files

OMAP: Add gpio-keys support for Overo 



This patch adds support for the standard push buttons available on
Overo expansion boards.

Signed-off-by: default avatarSteve Sakoman <steve@sakoman.com>
Acked-by: default avatarTony Lindgren <tony@atomide.com>
Signed-off-by: default avatarTomi Valkeinen <tomi.valkeinen@ti.com>
parent 7c94f68d

arch/arm/mach-omap2/board-overo.c

+42 −0
Original line number Diff line number Diff line
@@ -519,6 +519,47 @@ static void __init overo_init_led(void) 
static inline void __init overo_init_led(void) { return; }

#endif



#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)

#include <linux/input.h>

#include <linux/gpio_keys.h>



static struct gpio_keys_button gpio_buttons[] = {

	{

		.code			= BTN_0,

		.gpio			= 23,

		.desc			= "button0",

		.wakeup			= 1,

	},

	{

		.code			= BTN_1,

		.gpio			= 14,

		.desc			= "button1",

		.wakeup			= 1,

	},

};



static struct gpio_keys_platform_data gpio_keys_pdata = {

	.buttons	= gpio_buttons,

	.nbuttons	= ARRAY_SIZE(gpio_buttons),

};



static struct platform_device gpio_keys_device = {

	.name	= "gpio-keys",

	.id	= -1,

	.dev	= {

		.platform_data	= &gpio_keys_pdata,

	},

};



static void __init overo_init_keys(void)

{

	platform_device_register(&gpio_keys_device);

}



#else

static inline void __init overo_init_keys(void) { return; }

#endif



static int overo_twl_gpio_setup(struct device *dev,

		unsigned gpio, unsigned ngpio)

{
@@ -701,6 +742,7 @@ static void __init overo_init(void) 
	overo_init_smsc911x();

	overo_display_init();

	overo_init_led();

	overo_init_keys();



	/* Ensure SDRC pins are mux'd for self-refresh */

	omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);