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.com
Signed-off-by: Nishanth Menon <nm@ti.com>

diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts b/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts
index f1f4c8634ab690d0ea63990a5fa7ac5da1a1aa1e..f34b92acc56d870f50cddd2b039c9c513171a32a 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts
@@ -273,6 +273,10 @@
        };
 };
 
+&wkup_gpio0 {
+       status = "okay";
+};
+
 &main_pmx0 {
        bootph-all;
        main_uart8_pins_default: main-uart8-default-pins {
@@ -407,6 +411,17 @@
        };
 };
 
+&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 @@
                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 {