leds-twl4030-pwm: fix initial state handling

diff --git a/drivers/leds/leds-twl4030-pwm.c b/drivers/leds/leds-twl4030-pwm.c
index e371282..126feb6 100644 (file)
--- a/drivers/leds/leds-twl4030-pwm.c
+++ b/drivers/leds/leds-twl4030-pwm.c
@@ -36,6 +36,8 @@
 #define LEDEN_LEDAPWM          BIT(4)
 #define LEDEN_LEDBPWM          BIT(5)
 
+#define LED_UNKNOWN            -1
+
 enum twl4030_led {
        TWL4030_LEDA = 0,
        TWL4030_LEDB,
@@ -133,7 +135,7 @@ static void twl4030_pwmled_work(struct work_struct *work)
 
        twl_i2c_write_u8(led->module, val, TWL4030_PWMx_PWMxOFF);
 
-       if (led->old_brightness == LED_OFF)
+       if (led->old_brightness == LED_OFF || led->old_brightness == LED_UNKNOWN)
                led->enable(led->id, 1);
 
 out:
@@ -172,7 +174,7 @@ static int __devinit twl4030_pwmled_probe(struct platform_device *pdev)
                led->cdev.brightness_set = twl4030_pwmled_brightness;
                led->cdev.default_trigger = pdata->leds[i].default_trigger;
                led->id = pdata->leds[i].pwm_id;
-               led->old_brightness = -1; /* unknown */
+               led->old_brightness = LED_UNKNOWN;
 
                switch (pdata->leds[i].pwm_id) {
                case TWL4030_LEDA: