Enable dynamic LED brightness

Change-Id: Icf170880d479ffcf966bb4e27ec44e1f20607b7e

Author: Chad0989

arch/arm/mach-msm/board-vigor.c

@@ -4880,7 +4880,7 @@ static struct pm8058_led_config pm_led_config[] = {
 		.name = "button-backlight",
 		.type = PM8058_LED_DRVX,
 		.bank = 6,
-		.flags = PM8058_LED_LTU_EN,
+		.flags = PM8058_LED_LTU_EN | PM8058_LED_DYNAMIC_BRIGHTNESS_EN,
 		.period_us = USEC_PER_SEC / 1000,
 		.start_index = 0,
 		.duites_size = 8,

drivers/leds/leds-pm8058.c

@@ -184,6 +184,8 @@ static void pm8058_drvx_led_brightness_set(struct led_classdev *led_cdev,
 		milliamps = (ldata->flags & PM8058_LED_DYNAMIC_BRIGHTNESS_EN) ?
 			    ldata->out_current * brightness / LED_FULL :
 			    ldata->out_current;
+		printk(KERN_INFO "%s: flags %d current %d\n", __func__,
+			ldata->flags, milliamps);
 		pm8058_pwm_config_led(ldata->pwm_led, id, mode, milliamps);
 		if (ldata->flags & PM8058_LED_LTU_EN) {
 			pduties = &duties[ldata->start_index];