[ARM] 5259/2: [AT91] PWM LEDs on AT91SAM9263-EK
Use the PWM controller and leds-atmel-pwm.c driver to drive a LED on
the Atmel AT91SAM9263-EK board.
Signed-off-by: Sedji Gaouaou <sedji.gaouaou@atmel.com>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-at91/board-sam9263ek.c b/arch/arm/mach-at91/board-sam9263ek.c
index ad71f4a..2924b68 100644
--- a/arch/arm/mach-at91/board-sam9263ek.c
+++ b/arch/arm/mach-at91/board-sam9263ek.c
@@ -30,6 +30,7 @@
#include <linux/fb.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
+#include <linux/leds.h>
#include <video/atmel_lcdc.h>
@@ -339,25 +340,32 @@
* LEDs ... these could all be PWM-driven, for variable brightness
*/
static struct gpio_led ek_leds[] = {
- { /* "left" led, green, userled1, pwm1 */
- .name = "ds1",
- .gpio = AT91_PIN_PB8,
- .active_low = 1,
- .default_trigger = "mmc0",
- },
- { /* "right" led, green, userled2, pwm2 */
+ { /* "right" led, green, userled2 (could be driven by pwm2) */
.name = "ds2",
.gpio = AT91_PIN_PC29,
.active_low = 1,
.default_trigger = "nand-disk",
},
- { /* "power" led, yellow, pwm0 */
+ { /* "power" led, yellow (could be driven by pwm0) */
.name = "ds3",
.gpio = AT91_PIN_PB7,
.default_trigger = "heartbeat",
}
};
+/*
+ * PWM Leds
+ */
+static struct gpio_led ek_pwm_led[] = {
+ /* For now only DS1 is PWM-driven (by pwm1) */
+ {
+ .name = "ds1",
+ .gpio = 1, /* is PWM channel number */
+ .active_low = 1,
+ .default_trigger = "none",
+ }
+};
+
static void __init ek_board_init(void)
{
@@ -388,6 +396,7 @@
at91_add_device_ac97(&ek_ac97_data);
/* LEDs */
at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
+ at91_pwm_leds(ek_pwm_led, ARRAY_SIZE(ek_pwm_led));
}
MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK")