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authorSteve Sakoman <steve@sakoman.com>2011-03-09 18:08:05 -0600
committerTomi Valkeinen <tomi.valkeinen@ti.com>2011-03-11 15:48:24 +0200
commit7c94f68d7b490c7787c6b97c5b2d6d56d57b071c (patch)
treed4fb98f468d15f8cf031415d6e545ded71ae9b00 /arch/arm/mach-omap2/board-overo.c
parentca0a6a6473f69f1773c97755840587262d841883 (diff)
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: Steve Sakoman <steve@sakoman.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'arch/arm/mach-omap2/board-overo.c')
-rw-r--r--arch/arm/mach-omap2/board-overo.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c
index 4278ecb799a..e694ebd2636 100644
--- a/arch/arm/mach-omap2/board-overo.c
+++ b/arch/arm/mach-omap2/board-overo.c
@@ -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);