diff --git a/arch/arm/boot/dts/tegra20-medcom-wide.dts b/arch/arm/boot/dts/tegra20-medcom-wide.dts
index cb6199d7d224..f144487c5da3 100644
--- a/arch/arm/boot/dts/tegra20-medcom-wide.dts
+++ b/arch/arm/boot/dts/tegra20-medcom-wide.dts
@@ -54,6 +54,9 @@
 
 		brightness-levels = <0 4 8 16 32 64 128 255>;
 		default-brightness-level = <6>;
+
+		/* close enough */
+		power-supply = <&vdd_3v3_reg>;
 	};
 
 	panel: panel {
diff --git a/arch/arm/boot/dts/tegra20-paz00.dts b/arch/arm/boot/dts/tegra20-paz00.dts
index 12c245869a74..5ce6a1ff93de 100644
--- a/arch/arm/boot/dts/tegra20-paz00.dts
+++ b/arch/arm/boot/dts/tegra20-paz00.dts
@@ -571,6 +571,9 @@
 
 		brightness-levels = <0 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240 255>;
 		default-brightness-level = <10>;
+
+		/* close enough */
+		power-supply = <&vdd_pnl_reg>;
 	};
 
 	clk32k_in: clock-32k {