linux-kernel - [PATCH] arm64: dts: ti: k3-j722s-evm: Enable PMIC

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Message-ID: <20250102103814.102499-1-u-kumar1@ti.com>
Date: Thu, 2 Jan 2025 16:08:14 +0530
From: Udit Kumar <u-kumar1@...com>
To: <nm@...com>, <vigneshr@...com>
CC: <kristo@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Udit Kumar
	<u-kumar1@...com>
Subject: [PATCH] arm64: dts: ti: k3-j722s-evm: Enable PMIC

Add support for TPS6522x PMIC family on wakeup I2C0 bus.
This device provides regulators (bucks and LDOs), along with
GPIOs, and monitors SOC's MCU error signal.

Signed-off-by: Udit Kumar <u-kumar1@...com>
---
Bootlogs
https://gist.github.com/uditkumarti/961cdece09f176e1e1806efef7799cf2

 arch/arm64/boot/dts/ti/k3-j722s-evm.dts | 88 +++++++++++++++++++++++++
 1 file changed, 88 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
index a00f4a7d20d9..691c6560ec04 100644
--- a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
@@ -359,6 +359,13 @@ audio_ext_refclk1_pins_default: audio-ext-refclk1-default-pins {
 			J722S_IOPAD(0x00a0, PIN_OUTPUT, 1) /* (N24) GPMC0_WPn.AUDIO_EXT_REFCLK1 */
 		>;
 	};
+
+	pmic_irq_pins_default: pmic-irq-default-pins {
+		pinctrl-single,pins = <
+			J722S_IOPAD(0x030, PIN_INPUT, 7) /* (K23) GPIO0_12 */
+		>;
+	};
+
 };
 
 &cpsw3g {
@@ -459,6 +466,87 @@ &wkup_i2c0 {
 	clock-frequency = <400000>;
 	status = "okay";
 	bootph-all;
+
+	tps65224: pmic@48 {
+		compatible = "ti,tps65224-q1";
+		reg = <0x48>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pmic_irq_pins_default>;
+		interrupt-parent = <&main_gpio0>;
+		interrupts = <0 IRQ_TYPE_EDGE_FALLING>;
+		ti,primary-pmic;
+
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		buck12-supply = <&vsys_io_3v3>;
+		buck3-supply = <&vsys_io_3v3>;
+		buck4-supply = <&vsys_io_3v3>;
+
+		ldo1-supply = <&vsys_io_3v3>;
+		ldo2-supply = <&vsys_io_3v3>;
+		ldo3-supply = <&vsys_io_3v3>;
+
+		regulators {
+
+			buck1: buck1 {
+				regulator-name = "vcc1v8_io_buck1";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-boot-on;
+				regulator-always-on;
+				bootph-all;
+			};
+
+			buck2: buck2 {
+				regulator-name = "vcc1v1_ddr_buck2";
+				regulator-min-microvolt = <1100000>;
+				regulator-max-microvolt = <1100000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			buck3: buck3 {
+				regulator-name = "vcc0v85_ram_buck3";
+				regulator-min-microvolt = <850000>;
+				regulator-max-microvolt = <850000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			buck4: buck4 {
+				regulator-name = "vcc0v75_ioret_buck4";
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <750000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo1: ldo1 {
+				regulator-name = "vdda1v8_pll_ldo1";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo2: ldo2 {
+				regulator-name = "dvdd3v3_ldo2";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo3: ldo3 {
+				regulator-name = "vdd1v85_phy_ldo3";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+	       };
+	};
 };
 
 &k3_clks {
-- 
2.34.1