[PATCH v1 8/9] ARM: tegra: tf600t: Drop backlight regulator
From: Svyatoslav Ryhel
Date: Mon Apr 06 2026 - 04:38:44 EST
Drop dedicated backlight regulator since the GPIO used in it is actually
SFIO controlling backlight and setting it as GPIO causes backlight to
freeze at maximum level.
Tested-by: Andreas Westman Dorcsak <hedmoo@xxxxxxxxx>
Signed-off-by: Svyatoslav Ryhel <clamor95@xxxxxxxxx>
---
arch/arm/boot/dts/nvidia/tegra30-asus-tf600t.dts | 13 +------------
1 file changed, 1 insertion(+), 12 deletions(-)
diff --git a/arch/arm/boot/dts/nvidia/tegra30-asus-tf600t.dts b/arch/arm/boot/dts/nvidia/tegra30-asus-tf600t.dts
index 8b68bfef8dee..0bebea0cb8c4 100644
--- a/arch/arm/boot/dts/nvidia/tegra30-asus-tf600t.dts
+++ b/arch/arm/boot/dts/nvidia/tegra30-asus-tf600t.dts
@@ -2192,7 +2192,7 @@ backlight: backlight {
compatible = "pwm-backlight";
enable-gpios = <&gpio TEGRA_GPIO(H, 2) GPIO_ACTIVE_HIGH>;
- power-supply = <&vdd_5v0_bl>;
+ power-supply = <&vdd_5v0_sys>;
pwms = <&pwm 0 71428>;
brightness-levels = <1 255>;
@@ -2422,17 +2422,6 @@ vdd_3v3_als: regulator-als {
vin-supply = <&vdd_3v3_sys>;
};
- vdd_5v0_bl: regulator-bl {
- compatible = "regulator-fixed";
- regulator-name = "vdd_5v0_bl";
- regulator-min-microvolt = <5000000>;
- regulator-max-microvolt = <5000000>;
- regulator-boot-on;
- gpio = <&gpio TEGRA_GPIO(H, 0) GPIO_ACTIVE_HIGH>;
- enable-active-high;
- vin-supply = <&vdd_5v0_bat>;
- };
-
vdd_panel: regulator-panel {
compatible = "regulator-fixed";
regulator-name = "vdd_panel";
--
2.51.0