1 files changed, 31 insertions, 8 deletions

diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index 909e7fa6d299..2a6e8ad1d68b 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -20,6 +20,8 @@
 #include <linux/clk.h>
 #include <linux/io.h>
 #include <linux/leds.h>
+#include <linux/pwm.h>
+#include <linux/leds_pwm.h>
 #include <linux/gpio.h>
 #include <linux/input.h>
 #include <linux/gpio_keys.h>
@@ -55,6 +57,32 @@
 
 #define NAND_CS 0
 
+static struct pwm_lookup pwm_lookup[] = {
+        /* LEDB -> PMU_STAT */
+        PWM_LOOKUP("twl-pwmled", 1, "leds_pwm", "beagleboard::pmu_stat"),
+};
+
+static struct led_pwm pwm_leds[] = {
+        {
+                .name           = "beagleboard::pmu_stat",
+                .max_brightness = 127,
+                .pwm_period_ns  = 7812500,
+        },
+};
+
+static struct led_pwm_platform_data pwm_data = {
+        .num_leds       = ARRAY_SIZE(pwm_leds),
+        .leds           = pwm_leds,
+};
+
+static struct platform_device leds_pwm = {
+        .name   = "leds_pwm",
+        .id     = -1,
+        .dev    = {
+                .platform_data = &pwm_data,
+        },
+};
+
 /*
  * OMAP3 Beagle revision
  * Run time detection of Beagle revision is done by reading GPIO.
@@ -292,9 +320,6 @@ static int beagle_twl_gpio_setup(struct device *dev,
         gpio_request_one(gpio + TWL4030_GPIO_MAX, beagle_config.usb_pwr_level,
                         "nEN_USB_PWR");
 
-        /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
-        gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
-
         return 0;
 }
 
@@ -376,11 +401,6 @@ static struct gpio_led gpio_leds[] = {
                 .default_trigger        = "mmc0",
                 .gpio                   = 149,
         },
-        {
-                .name                   = "beagleboard::pmu_stat",
-                .gpio                   = -EINVAL,      /* gets replaced */
-                .active_low             = true,
-        },
 };
 
 static struct gpio_led_platform_data gpio_led_info = {
@@ -428,6 +448,7 @@ static struct platform_device *omap3_beagle_devices[] __initdata = {
         &leds_gpio,
         &keys_gpio,
         &madc_hwmon,
+        &leds_pwm,
 };
 
 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
@@ -532,6 +553,8 @@ static void __init omap3_beagle_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);
+
+        pwm_add_table(pwm_lookup, ARRAY_SIZE(pwm_lookup));
 }
 
 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")