linux-kernel - [PATCH] arm64: dts: hihope-rzg2-ex-lvds: Add power-supply and enable-gpios to backlight node

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Date:   Sun, 21 Nov 2021 23:58:08 +0000
From:   Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
To:     Geert Uytterhoeven <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        linux-renesas-soc@...r.kernel.org
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Prabhakar <prabhakar.csengg@...il.com>,
        Biju Das <biju.das.jz@...renesas.com>,
        Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH] arm64: dts: hihope-rzg2-ex-lvds: Add power-supply and enable-gpios to backlight node

This patch adds missing power-supply and enable-gpios property to
backlight node. This fixes the warning "pwm-backlight backlight:
backlight supply power not found, using dummy regulator".

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
---
 arch/arm64/boot/dts/renesas/hihope-rzg2-ex-lvds.dtsi | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/hihope-rzg2-ex-lvds.dtsi b/arch/arm64/boot/dts/renesas/hihope-rzg2-ex-lvds.dtsi
index 40c5e8d6d841..a4fb8582a36b 100644
--- a/arch/arm64/boot/dts/renesas/hihope-rzg2-ex-lvds.dtsi
+++ b/arch/arm64/boot/dts/renesas/hihope-rzg2-ex-lvds.dtsi
@@ -12,6 +12,17 @@
 
 		brightness-levels = <0 2 8 16 32 64 128 255>;
 		default-brightness-level = <6>;
+		power-supply = <&reg_12v>;
+		enable-gpios = <&gpio6 7 GPIO_ACTIVE_HIGH>;
+	};
+
+	reg_12v: regulator2 {
+		compatible = "regulator-fixed";
+		regulator-name = "fixed-12V";
+		regulator-min-microvolt = <12000000>;
+		regulator-max-microvolt = <12000000>;
+		regulator-boot-on;
+		regulator-always-on;
 	};
 };
 
-- 
2.17.1