linux-kernel - [PATCH v4 01/15] arm64: dts: freescale: imx93-phycore-som: Add PMIC support

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Message-Id: <20250422105644.2725168-2-primoz.fiser@norik.com>
Date: Tue, 22 Apr 2025 12:56:30 +0200
From: Primoz Fiser <primoz.fiser@...ik.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,
	upstream@...ts.phytec.de
Subject: [PATCH v4 01/15] arm64: dts: freescale: imx93-phycore-som: Add PMIC support

PMIC driver for PCA9451A used on phyCORE-i.MX93 SOM is available since
commit 5edeb7d31262 ("regulator: pca9450: add pca9451a support"). Add
support for it in the SOM device-tree.

Signed-off-by: Primoz Fiser <primoz.fiser@...ik.com>
Reviewed-by: Frank Li <Frank.Li@....com>
---
Changes in v4:
- no changes

 .../boot/dts/freescale/imx93-phycore-som.dtsi | 97 +++++++++++++++++++
 1 file changed, 97 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi b/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi
index 88c2657b50e6..507a71f9294b 100644
--- a/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi
@@ -72,6 +72,90 @@ ethphy1: ethernet-phy@1 {
 	};
 };
 
+/* I2C3 */
+&lpi2c3 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_lpi2c3>;
+	status = "okay";
+
+	pmic@25 {
+		compatible = "nxp,pca9451a";
+		reg = <0x25>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_pmic>;
+		interrupt-parent = <&gpio4>;
+		interrupts = <27 IRQ_TYPE_LEVEL_LOW>;
+
+		regulators {
+			buck1: BUCK1 {
+				regulator-name = "VDD_SOC";
+				regulator-min-microvolt = <610000>;
+				regulator-max-microvolt = <950000>;
+				regulator-boot-on;
+				regulator-always-on;
+				regulator-ramp-delay = <3125>;
+			};
+
+			buck2: BUCK2 {
+				regulator-name = "VDDQ_0V6";
+				regulator-min-microvolt = <600000>;
+				regulator-max-microvolt = <600000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			buck4: BUCK4 {
+				regulator-name = "VDD_3V3_BUCK";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			buck5: BUCK5 {
+				regulator-name = "VDD_1V8";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			buck6: BUCK6 {
+				regulator-name = "VDD_1V1";
+				regulator-min-microvolt = <1100000>;
+				regulator-max-microvolt = <1100000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo1: LDO1 {
+				regulator-name = "PMIC_SNVS_1V8";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo4: LDO4 {
+				regulator-name = "VDD_0V8";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <800000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo5: LDO5 {
+				regulator-name = "NVCC_SD2";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+		};
+	};
+};
+
 /* eMMC */
 &usdhc1 {
 	pinctrl-names = "default";
@@ -108,6 +192,19 @@ MX93_PAD_I2C1_SDA__GPIO1_IO01		0x31e
 		>;
 	};
 
+	pinctrl_lpi2c3: lpi2c3grp {
+		fsl,pins = <
+			MX93_PAD_GPIO_IO28__LPI2C3_SDA		0x40000b9e
+			MX93_PAD_GPIO_IO29__LPI2C3_SCL		0x40000b9e
+		>;
+	};
+
+	pinctrl_pmic: pmicgrp {
+		fsl,pins = <
+			MX93_PAD_ENET2_RD3__GPIO4_IO27		0x31e
+		>;
+	};
+
 	pinctrl_usdhc1: usdhc1grp {
 		fsl,pins = <
 			MX93_PAD_SD1_CLK__USDHC1_CLK		0x179e
-- 
2.34.1