ARM: dts: exynos: add panel supply in Tiny4412

The simple panel should have a supply.  Provide a stub, as the board DTS
does not have a PMIC node, to silence warning:

  exynos4412-tiny4412.dtb: panel: 'power-supply' is a required property

Link: https://lore.kernel.org/r/20230120155404.323386-7-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

diff --git a/arch/arm/boot/dts/exynos4412-tiny4412.dts b/arch/arm/boot/dts/exynos4412-tiny4412.dts
index 04388c575efe9925c64735b827554c90e2f3808b..e0b6162d2e2ae8ef30bea046fe3bee933efc1fa6 100644 (file)
--- a/arch/arm/boot/dts/exynos4412-tiny4412.dts
+++ b/arch/arm/boot/dts/exynos4412-tiny4412.dts
@@ -79,6 +79,7 @@
 
        panel {
                compatible = "innolux,at070tn92";
+               power-supply = <&vddq_lcd>;
 
                port {
                        panel_input: endpoint {
@@ -86,6 +87,13 @@
                        };
                };
        };
+
+       vddq_lcd: regulator-vddq-lcd {
+               compatible = "regulator-fixed";
+               regulator-name = "vddq-lcd";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <1800000>;
+       };
 };
 
 &cpu_thermal {