arm64: dts: ti: k3-j784s4-evm: Add support for TPS6594 PMIC

This patch adds support for TPS6593 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: Jerome Neanne <jneanne@baylibre.com>
Signed-off-by: Esteban Blanc <eblanc@baylibre.com>
Signed-off-by: Jai Luthra <j-luthra@ti.com>
Signed-off-by: Neha Malcom Francis <n-francis@ti.com>
Reviewed-by: Udit Kumar <u-kumar1@ti.com>
Link: https://lore.kernel.org/r/20231208114919.3429562-5-n-francis@ti.comSigned-off-by: Nishanth Menon <nm@ti.com>

arch/arm64/boot/dts/ti/k3-j784s4-evm.dts

@@ -273,6 +273,10 @@ dp0_connector_in: endpoint {
 	};
 };
 
+&wkup_gpio0 {
+	status = "okay";
+};
+
 &main_pmx0 {
 	bootph-all;
 	main_uart8_pins_default: main-uart8-default-pins {
@@ -407,6 +411,17 @@ J784S4_WKUP_IOPAD(0x108, PIN_INPUT, 0) /* (Y36) MCU_ADC1_AIN7 */
 	};
 };
 
+&wkup_pmx1 {
+	status = "okay";
+
+	pmic_irq_pins_default: pmic-irq-default-pins {
+		pinctrl-single,pins = <
+			/* (G33) MCU_OSPI1_CSn1.WKUP_GPIO0_39 */
+			J784S4_WKUP_IOPAD(0x028, PIN_INPUT, 7)
+		>;
+	};
+};
+
 &wkup_pmx0 {
 	bootph-all;
 	mcu_fss0_ospi0_pins_default: mcu-fss0-ospi0-default-pins {
@@ -471,6 +486,93 @@ eeprom@50 {
 		compatible = "atmel,24c256";
 		reg = <0x50>;
 	};
+
+	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>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		ti,primary-pmic;
+		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;
+			};
+		};
+	};
 };
 
 &mcu_uart0 {