linux-kernel - [PATCH v9 5/7] arm64: dts: ti: k3-am69-sk: Add support for TPS6594 PMIC

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Message-ID: <20231205093439.2298296-6-n-francis@ti.com>
Date:   Tue, 5 Dec 2023 15:04:37 +0530
From:   Neha Malcom Francis <n-francis@...com>
To:     <nm@...com>, <vigneshr@...com>, <kristo@...nel.org>,
        <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
        <conor+dt@...nel.org>, <a-nandan@...com>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <eblanc@...libre.com>, <jneanne@...libre.com>,
        <aseketeli@...libre.com>, <jpanis@...libre.com>, <u-kumar1@...com>,
        <j-luthra@...com>, <vaishnav.a@...com>, <hnagalla@...com>,
        <devarsht@...com>, <n-francis@...com>
Subject: [PATCH v9 5/7] arm64: dts: ti: k3-am69-sk: Add support for TPS6594 PMIC

This patch adds support for TPS6594 PMIC on wkup I2C0 bus. This device
provides regulators (bucks and LDOs), but also GPIOs, a RTC, a watchdog,
an ESM (Error Signal Monitor) which monitors the SoC error output
signal, and a PFSM (Pre-configurable Finite State Machine) which manages
the operational modes of the PMIC.

Signed-off-by: Neha Malcom Francis <n-francis@...com>
Tested-by: Manorit Chawdhry <m-chawdhry@...com>
---
 arch/arm64/boot/dts/ti/k3-am69-sk.dts | 100 ++++++++++++++++++++++++++
 1 file changed, 100 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am69-sk.dts b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
index 9868c7049bfb..dec27acb4e96 100644
--- a/arch/arm64/boot/dts/ti/k3-am69-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
@@ -431,6 +431,17 @@ J784S4_IOPAD(0x000, PIN_INPUT, 7) /* (AN35) EXTINTN.GPIO0_0 */
 	};
 };
 
+&wkup_pmx1 {
+	status = "okay";
+
+	pmic_irq_pins_default: pmic-irq-default-pins {
+		pinctrl-single,pins = <
+			/* (AA37) MCU_ADC1_AIN4.WKUP_GPIO0_83 */
+			J784S4_WKUP_IOPAD(0x12c, PIN_INPUT, 7)
+		>;
+	};
+};
+
 &wkup_pmx2 {
 	bootph-all;
 	wkup_uart0_pins_default: wkup-uart0-default-pins {
@@ -631,6 +642,95 @@ eeprom@51 {
 		compatible = "atmel,24c512";
 		reg = <0x51>;
 	};
+
+	tps659413: pmic@48 {
+		compatible = "ti,tps6594-q1";
+		reg = <0x48>;
+		system-power-controller;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pmic_irq_pins_default>;
+		interrupt-parent = <&wkup_gpio0>;
+		interrupts = <39 IRQ_TYPE_EDGE_FALLING>;
+		ti,primary-pmic;
+
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		buck12-supply = <&vsys_3v3>;
+		buck3-supply = <&vsys_3v3>;
+		buck4-supply = <&vsys_3v3>;
+		buck5-supply = <&vsys_3v3>;
+		ldo1-supply = <&vsys_3v3>;
+		ldo2-supply = <&vsys_3v3>;
+		ldo3-supply = <&vsys_3v3>;
+		ldo4-supply = <&vsys_3v3>;
+
+		regulators {
+			bucka12: buck12 {
+				regulator-name = "vdd_ddr_1v1";
+				regulator-min-microvolt = <1100000>;
+				regulator-max-microvolt = <1100000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			bucka3: buck3 {
+				regulator-name = "vdd_ram_0v85";
+				regulator-min-microvolt = <850000>;
+				regulator-max-microvolt = <850000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			bucka4: buck4 {
+				regulator-name = "vdd_io_1v8";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			bucka5: buck5 {
+				regulator-name = "vdd_mcu_0v85";
+				regulator-min-microvolt = <850000>;
+				regulator-max-microvolt = <850000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldoa1: ldo1 {
+				regulator-name = "vdd_mcuio_1v8";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldoa2: ldo2 {
+				regulator-name = "vdd_mcuio_3v3";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldoa3: ldo3 {
+				regulator-name = "vds_dll_0v8";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <800000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldoa4: ldo4 {
+				regulator-name = "vda_mcu_1v8";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+		};
+	};
 };
 
 &wkup_gpio0 {
-- 
2.34.1