[PATCH v2 2/2] leds: pwm-multicolor: Introduce default-intensity property

[Jonas Rebmann <jre@pengutronix.de>]

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>
---
 drivers/leds/rgb/leds-pwm-multicolor.c | 2 ++
 1 file changed, 2 insertions(+)

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++;
 	}
 

-- 
2.54.0.129.g3edf2eeba9