[PATCH v6 01/14] arm: dts: am335x-evm: Add backlight to the panel

Markus Schneider-Pargmann (TI)
2026-04-15T16:04:02Z

Add backlight phandle reference to panel node. Without this reference,
the display driver cannot control backlight, leaving the panel dark.

Reviewed-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: Markus Schneider-Pargmann (TI) <msp@baylibre.com>
---
arch/arm/dts/am335x-evm.dts | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/dts/am335x-evm.dts b/arch/arm/dts/am335x-evm.dts
index 1b5b627006822a9bb4df1c6433ce7eff114dc029..52ca4ff6809ad24fafbdd515fbcde840715cf20f 100644
--- a/arch/arm/dts/am335x-evm.dts
+++ b/arch/arm/dts/am335x-evm.dts
@@ -94,7 +94,7 @@
};
};

- backlight {
+ pwm_backlight: backlight {
compatible = "pwm-backlight";
pwms = <&ecap0 0 50000 0>;
brightness-levels = <0 51 53 56 62 75 101 152 255>;
@@ -106,6 +106,7 @@
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&lcd_pins_s0>;
+ backlight = <&pwm_backlight>;
panel-info {
ac-bias = <255>;
ac-bias-intrpt = <0>;

--
2.53.0