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authorJon Hunter <jonathanh@nvidia.com>2020-02-24 14:34:36 +0000
committerThierry Reding <treding@nvidia.com>2020-03-12 12:14:30 +0100
commitdb705117d18b92244e44ef9b0cd3be79fe15c48b (patch)
treed69a059077b111f648ef0e878daede5623b159bc
parentarm64: tegra: Fix Tegra186 SOR supply (diff)
downloadlinux-dev-db705117d18b92244e44ef9b0cd3be79fe15c48b.tar.xz
linux-dev-db705117d18b92244e44ef9b0cd3be79fe15c48b.zip
arm64: tegra: Populate LP8557 backlight regulator
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> Signed-off-by: Thierry Reding <treding@nvidia.com>
-rw-r--r--arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts1
1 files changed, 1 insertions, 0 deletions
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>;