The sleep indicator LEDs can be enabled/disabled by toggling GPIO162.
Request this GPIO in RX51 board init, disable by default and expose
GPIO162 to userspace so LEDs can be toggled from userspace:
To enable:
# echo 1 > /sys/class/gpio/gpio162/value
To disable:
# echo 0 > /sys/class/gpio/gpio162/value
Signed-off-by: Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx>
---
arch/arm/mach-omap2/board-rx51.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/board-rx51.c b/arch/arm/mach-omap2/board-rx51.c
index f9196c3..6ad44d8 100644
--- a/arch/arm/mach-omap2/board-rx51.c
+++ b/arch/arm/mach-omap2/board-rx51.c
@@ -31,6 +31,8 @@
#include <mach/gpmc.h>
#include <mach/usb.h>
+#define RX51_GPIO_SLEEP_IND 162
+
static struct omap_lcd_config rx51_lcd_config = {
.ctrl_name = "internal",
};
@@ -74,6 +76,11 @@ static void __init rx51_init(void)
/* Ensure SDRC pins are mux'd for self-refresh */
omap_cfg_reg(H16_34XX_SDRC_CKE0);
omap_cfg_reg(H17_34XX_SDRC_CKE1);
+
+ if (!(gpio_request(RX51_GPIO_SLEEP_IND, "SLEEP_IND"))) {
+ gpio_direction_output(RX51_GPIO_SLEEP_IND, 0);
+ gpio_export(RX51_GPIO_SLEEP_IND, 1);
+ }
}
static void __init rx51_map_io(void)
--
1.6.4.3
--
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