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OMAP: Add gpio-leds support for Overo

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

Signed-off-by: Steve Sakoman <steve@sakoman.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Steve Sakoman 2011-03-09 18:08:05 -06:00 committed by Tomi Valkeinen
parent ca0a6a6473
commit 7c94f68d7b
1 changed files with 53 additions and 0 deletions
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53
arch/arm/mach-omap2/board-overo.c
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@ -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);