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[4/4] ARM64: tegra: Populate LP8557 backlight regulator

Message ID 20200224143436.5438-4-jonathanh@nvidia.com
State New
Headers show
Series None | expand

Commit Message

Jon Hunter Feb. 24, 2020, 2:34 p.m. UTC 
The following warning is observed on Jetson TX1 platform because the
supply regulator is not specified for the backlight.

 WARNING KERN lp855x 0-002c: 0-002c supply power not found, using dummy regulator

The backlight supply is provided by the 3.3V SYS rail and so add this
as the supply for the backlight.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
---
 arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts b/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts
index c70a610f8e3a..ea0e1efa6973 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts
@@ -56,6 +56,7 @@ 
 		backlight: backlight@2c {
 			compatible = "ti,lp8557";
 			reg = <0x2c>;
+			power-supply = <&vdd_3v3_sys>;
 
 			dev-ctrl = /bits/ 8 <0x80>;
 			init-brt = /bits/ 8 <0xff>;