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| author | Jonas Rebmann <jre@pengutronix.de> | 2026-06-05 09:27:48 +0200 |
|---|---|---|
| committer | Lee Jones <lee@kernel.org> | 2026-07-01 21:24:27 +0100 |
| commit | 782cca1ac6f43f5e6d0b1512b63fa517da223aca (patch) | |
| tree | bfacf1dd79b5481811df502a833f3400c70d912a | |
| parent | dc59e4fea9d83f03bad6bddf3fa2e52491777482 (diff) | |
| download | linux-next-782cca1ac6f43f5e6d0b1512b63fa517da223aca.tar.gz linux-next-782cca1ac6f43f5e6d0b1512b63fa517da223aca.zip | |
leds: pwm-multicolor: Introduce default-intensity property
Like all LED drivers, pwm-multicolor supports turning on an LED on boot
by setting linux,default-trigger, e.g. to "default-on". pwm-multicolor
however scales the brightness of the color-component sub-LEDs with their
individual intensity value. Since these intensities are
zero-initialized, on boot a trigger is invisible until colors are set
from userspace.
Fix linux,default-trigger for pwm-multicolor by allowing for nonzero
default-intensities but default to 0 for backwards-compatibility.
Signed-off-by: Jonas Rebmann <jre@pengutronix.de>
Link: https://patch.msgid.link/20260605-multicolor-default-v2-2-ed07271df6b0@pengutronix.de
Signed-off-by: Lee Jones <lee@kernel.org>
| -rw-r--r-- | drivers/leds/rgb/leds-pwm-multicolor.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/leds/rgb/leds-pwm-multicolor.c b/drivers/leds/rgb/leds-pwm-multicolor.c index e0d7d3c9215c..3e515df40583 100644 --- a/drivers/leds/rgb/leds-pwm-multicolor.c +++ b/drivers/leds/rgb/leds-pwm-multicolor.c @@ -95,6 +95,8 @@ static int iterate_subleds(struct device *dev, struct pwm_mc_led *priv, } subled[priv->mc_cdev.num_colors].color_index = color; + fwnode_property_read_u32(fwnode, "default-intensity", + &subled[priv->mc_cdev.num_colors].intensity); priv->mc_cdev.num_colors++; } |