ARM: dts: s5pv210: add dummy 5V regulator for backlight on SMDKv210

[ Upstream commit b77904ba177a9c67b6dbc3637fdf1faa22df6e5c ]

Backlight is supplied by DC5V regulator.  The DTS has no PMIC node, so
just add a regulator-fixed to solve it and fix dtbs_check warning:

  s5pv210-smdkv210.dtb: backlight: 'power-supply' is a required property

Link: https://lore.kernel.org/r/20230421095721.31857-4-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Stable-dep-of: 982655cb0e7f ("ARM: dts: samsung: s5pv210-smdkv210: correct ethernet reg addresses (split)")
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/arm/boot/dts/s5pv210-smdkv210.dts b/arch/arm/boot/dts/s5pv210-smdkv210.dts
index fbae768d65e272cd91e35540c079a477bc66f30f..6e26c67e0a26e6189a0442f0346323d4113a19a1 100644 (file)
--- a/arch/arm/boot/dts/s5pv210-smdkv210.dts
+++ b/arch/arm/boot/dts/s5pv210-smdkv210.dts
@@ -55,6 +55,14 @@
                default-brightness-level = <6>;
                pinctrl-names = "default";
                pinctrl-0 = <&pwm3_out>;
+               power-supply = <&dc5v_reg>;
+       };
+
+       dc5v_reg: regulator-0 {
+               compatible = "regulator-fixed";
+               regulator-name = "DC5V";
+               regulator-min-microvolt = <5000000>;
+               regulator-max-microvolt = <5000000>;
        };
 };