[PATCH 01/13] arm64: dts: freescale: imx93-phycore-som: Add PMIC support

Primoz Fiser
2025-04-10T10:00:02Z

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@norik.com>
---
.../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