linux-kernel - [PATCH 1/2] arm64: dts: imx8: add vdd-supply and vddio-supply for fsl,mpl3115

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Message-Id: <20251022-fsl-mpl3115-v1-1-93187d095efc@nxp.com>
Date: Wed, 22 Oct 2025 16:43:21 -0400
From: Frank Li <Frank.Li@....com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>
Cc: devicetree@...r.kernel.org, imx@...ts.linux.dev, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 David Lechner <dlechner@...libre.com>, Frank Li <Frank.Li@....com>
Subject: [PATCH 1/2] arm64: dts: imx8: add vdd-supply and vddio-supply for
 fsl,mpl3115

Add vdd-supply and vddio-supply for fsl,mpl3115 to fix CHECK_DTBS warning:
arch/arm64/boot/dts/freescale/imx8qm-mek.dtb: pressure-sensor@60 (fsl,mpl3115): 'vdd-supply' is a required property
  from schema $id: http://devicetree.org/schemas/iio/pressure/fsl,mpl3115.yaml#

Signed-off-by: Frank Li <Frank.Li@....com>
---
change dt-binding is not prefered
https://lore.kernel.org/imx/0e00bb14-19c7-493a-9629-354bac3a273e@baylibre.com/T/#t
---
 arch/arm64/boot/dts/freescale/imx8qm-mek.dts  | 9 +++++++++
 arch/arm64/boot/dts/freescale/imx8qxp-mek.dts | 9 +++++++++
 2 files changed, 18 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8qm-mek.dts b/arch/arm64/boot/dts/freescale/imx8qm-mek.dts
index 202d5c67ac40b844ee38e8fb0f9caf2e186cfa9f..6a75ec612684e1e8e36346cdfdcc3d8ef490ace3 100644
--- a/arch/arm64/boot/dts/freescale/imx8qm-mek.dts
+++ b/arch/arm64/boot/dts/freescale/imx8qm-mek.dts
@@ -249,6 +249,13 @@ reg_2v8: regulator-2v8 {
 		regulator-max-microvolt = <2800000>;
 	};
 
+	reg_3v3: regulator-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
 	reg_usdhc2_vmmc: usdhc2-vmmc {
 		compatible = "regulator-fixed";
 		regulator-name = "SD1_SPWR";
@@ -566,6 +573,8 @@ light-sensor@44 {
 	pressure-sensor@60 {
 		compatible = "fsl,mpl3115";
 		reg = <0x60>;
+		vdd-supply = <&reg_3v3>;
+		vddio-supply = <&reg_3v3>;
 	};
 
 	max7322: gpio@68 {
diff --git a/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts b/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts
index 7b033744554105de6dbc4366f21e3c90f1768deb..f19350536bc919e31b539e0d63fbb8514040dfad 100644
--- a/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts
+++ b/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts
@@ -150,6 +150,13 @@ reg_2v8: regulator-2v8 {
 		regulator-max-microvolt = <2800000>;
 	};
 
+	reg_3v3: regulator-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
 	reg_pcieb: regulator-pcie {
 		compatible = "regulator-fixed";
 		regulator-max-microvolt = <3300000>;
@@ -453,6 +460,8 @@ i2c@2 {
 			pressure-sensor@60 {
 				compatible = "fsl,mpl3115";
 				reg = <0x60>;
+				vdd-supply = <&reg_3v3>;
+				vddio-supply = <&reg_3v3>;
 			};
 		};
 

-- 
2.34.1