The sleep indicator LEDs can be enabled/disabled by toggling GPIO162.
Use the LED GPIO class to export this LED functionality to userspace.
To enable:
# echo 1 > /sys/class/leds/sleep_ind/brightness
To disable:
# echo 0 > /sys/class/leds/sleep_ind/brightness
Signed-off-by: Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx>
---
arch/arm/mach-omap2/board-rx51.c | 25 +++++++++++++++++++++++++
1 files changed, 25 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/board-rx51.c b/arch/arm/mach-omap2/board-rx51.c
index 6a49f91..26b70da 100644
--- a/arch/arm/mach-omap2/board-rx51.c
+++ b/arch/arm/mach-omap2/board-rx51.c
@@ -16,6 +16,7 @@
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/gpio.h>
+#include <linux/leds.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
@@ -31,8 +32,30 @@
#include "mux.h"
+#define RX51_GPIO_SLEEP_IND 162
+
struct omap_sdrc_params *rx51_get_sdram_timings(void);
+static struct gpio_led gpio_leds[] = {
+ {
+ .name = "sleep_ind",
+ .gpio = RX51_GPIO_SLEEP_IND,
+ },
+};
+
+static struct gpio_led_platform_data gpio_led_info = {
+ .leds = gpio_leds,
+ .num_leds = ARRAY_SIZE(gpio_leds),
+};
+
+static struct platform_device leds_gpio = {
+ .name = "leds-gpio",
+ .id = -1,
+ .dev = {
+ .platform_data = &gpio_led_info,
+ },
+};
+
static struct omap_lcd_config rx51_lcd_config = {
.ctrl_name = "internal",
};
@@ -88,6 +111,8 @@ static void __init rx51_init(void)
/* Ensure SDRC pins are mux'd for self-refresh */
omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
+
+ platform_device_register(&leds_gpio);
}
static void __init rx51_map_io(void)
--
1.6.6
--
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