When probing if default LED state is on then default brightness will be
applied instead of max brightness.
Signed-off-by: George Stark <gnstark@xxxxxxxxxxxxxxxxx>
---
drivers/leds/leds-pwm.c | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c
index e1b414b40353..a591cc399704 100644
--- a/drivers/leds/leds-pwm.c
+++ b/drivers/leds/leds-pwm.c
@@ -63,6 +63,20 @@ static int led_pwm_set(struct led_classdev *led_cdev,
return pwm_apply_might_sleep(led_dat->pwm, &led_dat->pwmstate);
}
+static int led_pwm_default_brightness_get(struct fwnode_handle *fwnode,
+ int max_brightness)
+{
+ unsigned int default_brightness;
+ int ret;
+
+ ret = fwnode_property_read_u32(fwnode, "default-brightness",
+ &default_brightness);
+ if (ret < 0 || default_brightness > max_brightness)
+ default_brightness = max_brightness;
+
+ return default_brightness;
+}
+
__attribute__((nonnull))
static int led_pwm_add(struct device *dev, struct led_pwm_priv *priv,
struct led_pwm *led, struct fwnode_handle *fwnode)
@@ -104,7 +118,8 @@ static int led_pwm_add(struct device *dev, struct led_pwm_priv *priv,
/* set brightness */
switch (led->default_state) {
case LEDS_DEFSTATE_ON:
- led_data->cdev.brightness = led->max_brightness;
+ led_data->cdev.brightness =
+ led_pwm_default_brightness_get(fwnode, led->max_brightness);
break;
case LEDS_DEFSTATE_KEEP:
{
--
2.25.1
