diff options
Diffstat (limited to 'drivers/leds/rgb')
| -rw-r--r-- | drivers/leds/rgb/leds-pwm-multicolor.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/leds/rgb/leds-pwm-multicolor.c b/drivers/leds/rgb/leds-pwm-multicolor.c index 45e38708ecb1..da9d2218ae18 100644 --- a/drivers/leds/rgb/leds-pwm-multicolor.c +++ b/drivers/leds/rgb/leds-pwm-multicolor.c @@ -19,6 +19,7 @@ struct pwm_led { struct pwm_device *pwm; struct pwm_state state; + bool active_low; }; struct pwm_mc_led { @@ -45,6 +46,9 @@ static int led_pwm_mc_set(struct led_classdev *cdev, duty *= mc_cdev->subled_info[i].brightness; do_div(duty, cdev->max_brightness); + if (priv->leds[i].active_low) + duty = priv->leds[i].state.period - duty; + priv->leds[i].state.duty_cycle = duty; priv->leds[i].state.enabled = duty > 0; ret = pwm_apply_state(priv->leds[i].pwm, @@ -72,11 +76,11 @@ static int iterate_subleds(struct device *dev, struct pwm_mc_led *priv, pwmled = &priv->leds[priv->mc_cdev.num_colors]; pwmled->pwm = devm_fwnode_pwm_get(dev, fwnode, NULL); if (IS_ERR(pwmled->pwm)) { - ret = PTR_ERR(pwmled->pwm); - dev_err(dev, "unable to request PWM: %d\n", ret); + ret = dev_err_probe(dev, PTR_ERR(pwmled->pwm), "unable to request PWM\n"); goto release_fwnode; } pwm_init_state(pwmled->pwm, &pwmled->state); + pwmled->active_low = fwnode_property_read_bool(fwnode, "active-low"); ret = fwnode_property_read_u32(fwnode, "color", &color); if (ret) { |