[PATCH 17/18] arch: arm: dts: k3-j784s4-r5-evm: Add TI TPS6594 PMIC support

[Apelete Seketeli]

Add support for TPS6594 PMIC devices :
- regulators (bucks and LDOs) on WKUP_I2C0 bus,
- watchdog on MCU_I2C0 bus.

Signed-off-by: Apelete Seketeli <aseketeli at baylibre.com>
---
 arch/arm/dts/k3-j784s4-r5-evm.dts | 134 ++++++++++++++++++++++++++++++
 1 file changed, 134 insertions(+)

diff --git a/arch/arm/dts/k3-j784s4-r5-evm.dts b/arch/arm/dts/k3-j784s4-r5-evm.dts
index 7350a9be34..27b91100af 100644
--- a/arch/arm/dts/k3-j784s4-r5-evm.dts
+++ b/arch/arm/dts/k3-j784s4-r5-evm.dts
@@ -22,6 +22,27 @@
 		remoteproc1 = &a72_0;
 	};
 
+	evm_12v0: fixedregulator-evm12v0 {
+		/* main supply */
+		compatible = "regulator-fixed";
+		regulator-name = "evm_12v0";
+		regulator-min-microvolt = <12000000>;
+		regulator-max-microvolt = <12000000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
+	vsys_3v3: fixedregulator-vsys3v3 {
+		/* Output of LM5140 */
+		compatible = "regulator-fixed";
+		regulator-name = "vsys_3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&evm_12v0>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
 	fs_loader0: fs_loader at 0 {
 		compatible = "u-boot,fs-loader";
 		u-boot,dm-pre-reloc;
@@ -97,6 +118,105 @@
 	};
 };
 
+&wkup_gpio0 {
+	status = "okay";
+};
+
+&wkup_i2c0 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&wkup_i2c0_pins_default>;
+	clock-frequency = <400000>;
+	tps659413: pmic at 48 {
+		compatible = "ti,tps65941-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;
+			};
+		};
+	};
+};
+
 &main_pmx0 {
 	u-boot,dm-spl;
 
@@ -144,6 +264,20 @@
 			J784S4_WKUP_IOPAD(0x0b4, PIN_OUTPUT, 0) /* (K34) WKUP_UART0_TXD */
 		>;
 	};
+
+	wkup_i2c0_pins_default: wkup_i2c0_pins_default {
+		pinctrl-single,pins = <
+			J784S4_WKUP_IOPAD(0x100, PIN_INPUT, 0) /* (N33) WKUP_I2C0_SCL */
+			J784S4_WKUP_IOPAD(0x104, PIN_INPUT, 0) /* (N35) WKUP_I2C0_SDA */
+		>;
+	};
+
+	pmic_irq_pins_default: pmic-irq-pins-default {
+		pinctrl-single,pins = <
+			/* (G33) MCU_OSPI1_CSn1.WKUP_GPIO0_39 */
+			J784S4_WKUP_IOPAD(0x060, PIN_INPUT, 7)
+		>;
+	};
 };
 
 &sms {
-- 
2.34.1