linux-kernel - [PATCH] ARM: dts: imx6qdl-dhcom-pdk2: Fill in missing panel power-supply

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Message-ID: <20241015232509.101206-1-marex@denx.de>
Date: Wed, 16 Oct 2024 01:24:51 +0200
From: Marek Vasut <marex@...x.de>
To: linux-arm-kernel@...ts.infradead.org
Cc: Marek Vasut <marex@...x.de>,
	Christoph Niedermaier <cniedermaier@...electronics.com>,
	Conor Dooley <conor+dt@...nel.org>,
	Fabio Estevam <festevam@...il.com>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Rob Herring <robh@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Shawn Guo <shawnguo@...nel.org>,
	devicetree@...r.kernel.org,
	imx@...ts.linux.dev,
	kernel@...electronics.com,
	linux-kernel@...r.kernel.org
Subject: [PATCH] ARM: dts: imx6qdl-dhcom-pdk2: Fill in missing panel power-supply

Add missing panel power-supply property to DT to fix the following warning.
The power supply on this device is very simple chain of regulators from the
main 24V input, describe those.

"
arch/arm/boot/dts/nxp/imx/imx6q-dhcom-pdk2.dtb: panel: 'power-supply' is a required property
"

Signed-off-by: Marek Vasut <marex@...x.de>
---
Cc: Christoph Niedermaier <cniedermaier@...electronics.com>
Cc: Conor Dooley <conor+dt@...nel.org>
Cc: Fabio Estevam <festevam@...il.com>
Cc: Krzysztof Kozlowski <krzk+dt@...nel.org>
Cc: Pengutronix Kernel Team <kernel@...gutronix.de>
Cc: Rob Herring <robh@...nel.org>
Cc: Sascha Hauer <s.hauer@...gutronix.de>
Cc: Shawn Guo <shawnguo@...nel.org>
Cc: devicetree@...r.kernel.org
Cc: imx@...ts.linux.dev
Cc: kernel@...electronics.com
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
---
 .../boot/dts/nxp/imx/imx6qdl-dhcom-pdk2.dtsi  | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-dhcom-pdk2.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-dhcom-pdk2.dtsi
index 773fdcfcd0015..d7c2b30aecfd1 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6qdl-dhcom-pdk2.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-dhcom-pdk2.dtsi
@@ -143,6 +143,7 @@ led-8 {
 	panel {
 		backlight = <&display_bl>;
 		compatible = "edt,etm0700g0edh6";
+		power-supply = <&reg_panel_3v3>;
 
 		port {
 			lcd_panel_in: endpoint {
@@ -151,6 +152,25 @@ lcd_panel_in: endpoint {
 		};
 	};
 
+	/* Filtered supply voltage */
+	reg_pdk2_24v: regulator-pdk2-24v {
+		compatible = "regulator-fixed";
+		regulator-always-on;
+		regulator-max-microvolt = <24000000>;
+		regulator-min-microvolt = <24000000>;
+		regulator-name = "24V_PDK2";
+	};
+
+	/* 560-200 U1 */
+	reg_panel_3v3: regulator-panel-3v3 {
+		compatible = "regulator-fixed";
+		regulator-always-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-name = "3V3_PANEL";
+		vin-supply = <&reg_pdk2_24v>;
+	};
+
 	sound {
 		audio-codec = <&sgtl5000>;
 		audio-routing =
-- 
2.45.2