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Commit 226ddb98 authored by Nicolas Ferre's avatar Nicolas Ferre Committed by Russell King
Browse files

[ARM] 5564/1: at91: add gpio button and leds support for at91sam9rlek 



This adds input keyboard gpio support on at91sam9rlek board. It adds button 1
and 2 (left and right click).
It also adds gpio leds ds1, ds2 and ds3.

Signed-off-by: default avatarNicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: default avatarAndrew Victor <linux@maxim.org.za>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 28d0325c

arch/arm/mach-at91/board-sam9rlek.c

+79 −0
Original line number Diff line number Diff line
@@ -15,6 +15,8 @@ 
#include <linux/spi/spi.h>

#include <linux/fb.h>

#include <linux/clk.h>

#include <linux/input.h>

#include <linux/gpio_keys.h>



#include <video/atmel_lcdc.h>
@@ -206,6 +208,79 @@ static struct atmel_lcdfb_info __initdata ek_lcdc_data; 
#endif





/*

 * LEDs

 */

static struct gpio_led ek_leds[] = {

	{	/* "bottom" led, green, userled1 to be defined */

		.name			= "ds1",

		.gpio			= AT91_PIN_PD15,

		.active_low		= 1,

		.default_trigger	= "none",

	},

	{	/* "bottom" led, green, userled2 to be defined */

		.name			= "ds2",

		.gpio			= AT91_PIN_PD16,

		.active_low		= 1,

		.default_trigger	= "none",

	},

	{	/* "power" led, yellow */

		.name			= "ds3",

		.gpio			= AT91_PIN_PD14,

		.default_trigger	= "heartbeat",

	}

};





/*

 * GPIO Buttons

 */

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

static struct gpio_keys_button ek_buttons[] = {

	{

		.gpio		= AT91_PIN_PB0,

		.code		= BTN_2,

		.desc		= "Right Click",

		.active_low	= 1,

		.wakeup		= 1,

	},

	{

		.gpio		= AT91_PIN_PB1,

		.code		= BTN_1,

		.desc		= "Left Click",

		.active_low	= 1,

		.wakeup		= 1,

	}

};



static struct gpio_keys_platform_data ek_button_data = {

	.buttons	= ek_buttons,

	.nbuttons	= ARRAY_SIZE(ek_buttons),

};



static struct platform_device ek_button_device = {

	.name		= "gpio-keys",

	.id		= -1,

	.num_resources	= 0,

	.dev		= {

		.platform_data	= &ek_button_data,

	}

};



static void __init ek_add_device_buttons(void)

{

	at91_set_gpio_input(AT91_PIN_PB1, 1);	/* btn1 */

	at91_set_deglitch(AT91_PIN_PB1, 1);

	at91_set_gpio_input(AT91_PIN_PB0, 1);	/* btn2 */

	at91_set_deglitch(AT91_PIN_PB0, 1);



	platform_device_register(&ek_button_device);

}

#else

static void __init ek_add_device_buttons(void) {}

#endif





static void __init ek_board_init(void)

{

	/* Serial */
@@ -224,6 +299,10 @@ static void __init ek_board_init(void) 
	at91_add_device_lcdc(&ek_lcdc_data);

	/* Touch Screen Controller */

	at91_add_device_tsadcc();

	/* LEDs */

	at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));

	/* Push Buttons */

	ek_add_device_buttons();

}



MACHINE_START(AT91SAM9RLEK, "Atmel AT91SAM9RL-EK")