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Commit 7c94f68d authored by Steve Sakoman's avatar Steve Sakoman Committed by Tomi Valkeinen
Browse files

OMAP: Add gpio-leds support for Overo 



This patch adds support for the standard LEDs on the Overo COM and 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 ca0a6a64

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

+53 −0
Original line number Diff line number Diff line
@@ -473,6 +473,52 @@ static struct regulator_consumer_supply overo_vmmc1_supply = { 
	.supply			= "vmmc",

};



#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)

#include <linux/leds.h>



static struct gpio_led gpio_leds[] = {

	{

		.name			= "overo:red:gpio21",

		.default_trigger	= "heartbeat",

		.gpio			= 21,

		.active_low		= true,

	},

	{

		.name			= "overo:blue:gpio22",

		.default_trigger	= "none",

		.gpio			= 22,

		.active_low		= true,

	},

	{

		.name			= "overo:blue:COM",

		.default_trigger	= "mmc0",

		.gpio			= -EINVAL,	/* gets replaced */

		.active_low		= true,

	},

};



static struct gpio_led_platform_data gpio_leds_pdata = {

	.leds		= gpio_leds,

	.num_leds	= ARRAY_SIZE(gpio_leds),

};



static struct platform_device gpio_leds_device = {

	.name	= "leds-gpio",

	.id	= -1,

	.dev	= {

		.platform_data	= &gpio_leds_pdata,

	},

};



static void __init overo_init_led(void)

{

	platform_device_register(&gpio_leds_device);

}



#else

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

#endif



static int overo_twl_gpio_setup(struct device *dev,

		unsigned gpio, unsigned ngpio)

{
@@ -480,6 +526,11 @@ static int overo_twl_gpio_setup(struct device *dev, 


	overo_vmmc1_supply.dev = mmc[0].dev;



#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)

	/* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */

	gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;

#endif



	return 0;

}
@@ -487,6 +538,7 @@ static struct twl4030_gpio_platform_data overo_gpio_data = { 
	.gpio_base	= OMAP_MAX_GPIO_LINES,

	.irq_base	= TWL4030_GPIO_IRQ_BASE,

	.irq_end	= TWL4030_GPIO_IRQ_END,

	.use_leds	= true,

	.setup		= overo_twl_gpio_setup,

};
@@ -648,6 +700,7 @@ static void __init overo_init(void) 
	overo_spi_init();

	overo_init_smsc911x();

	overo_display_init();

	overo_init_led();



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

	omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);