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@ti.com>
Reviewed-by: Udit Kumar <u-kumar1@ti.com>
Link: https://lore.kernel.org/r/20231208114919.3429562-6-n-francis@ti.com
Signed-off-by: Nishanth Menon <nm@ti.com>

diff --git a/arch/arm64/boot/dts/ti/k3-am69-sk.dts b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
index d6a7ae0862442155cfff17a780208104f7990994..8da5915798688a5fb3016990079b848d083e0c11 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am69-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
@@ -433,6 +433,13 @@
 
 &wkup_pmx2 {
        bootph-all;
+       pmic_irq_pins_default: pmic-irq-default-pins {
+               pinctrl-single,pins = <
+                       /* (AA37) MCU_ADC1_AIN4.WKUP_GPIO0_83 */
+                       J784S4_WKUP_IOPAD(0x0fc, PIN_INPUT, 7)
+               >;
+       };
+
        wkup_uart0_pins_default: wkup-uart0-default-pins {
                bootph-all;
                pinctrl-single,pins = <
@@ -631,6 +638,93 @@
                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>;
+               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;
+                       };
+               };
+       };
 };
 
 &wkup_gpio0 {