arm64: dts: ti: k3-am68-sk-base-board: Add LP8733 and TPS6287 nodes

Add DTS node for LP87334E PMIC and two TPS6287x high current buck
converters.

LP87334E is responsible for supplying power to the MCU and MAIN domains
as well as to LPDDR4. The two TPS6287x supply power to the MAIN
domain for AVS and other core supplies.

Signed-off-by: Neha Malcom Francis <n-francis@ti.com>
Link: https://www.ti.com/lit/pdf/slda060
Link: https://lore.kernel.org/r/20240528040159.3919652-2-n-francis@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>

diff --git a/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
index d743f023cdd9deb79ac219e24b90d3658ef45b75..90dbe31c5b811698d860e375ecc1fafd7dd2bba1 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
@@ -414,6 +414,82 @@
        pinctrl-0 = <&wkup_uart0_pins_default>;
 };
 
+&wkup_i2c0 {
+       bootph-all;
+       clock-frequency = <400000>;
+       pinctrl-names = "default";
+       pinctrl-0 = <&wkup_i2c0_pins_default>;
+       status = "okay";
+
+       lp8733: pmic@60 {
+               compatible = "ti,lp8733";
+               reg = <0x60>;
+               buck0-in-supply = <&vsys_3v3>;
+               buck1-in-supply = <&vsys_3v3>;
+               ldo0-in-supply = <&vsys_3v3>;
+               ldo1-in-supply = <&vsys_3v3>;
+
+               lp8733_regulators: regulators {
+                       lp8733_buck0_reg: buck0 {
+                               /* FB_B0 -> LP8733-BUCK1 - VDD_MCU_0V85 */
+                               regulator-name = "lp8733-buck0";
+                               regulator-min-microvolt = <850000>;
+                               regulator-max-microvolt = <850000>;
+                               regulator-always-on;
+                               regulator-boot-on;
+                       };
+
+                       lp8733_buck1_reg: buck1 {
+                               /* FB_B1 -> LP8733-BUCK2 - VDD_DDR_1V1 */
+                               regulator-name = "lp8733-buck1";
+                               regulator-min-microvolt = <1100000>;
+                               regulator-max-microvolt = <1100000>;
+                               regulator-always-on;
+                               regulator-boot-on;
+                       };
+
+                       lp8733_ldo0_reg: ldo0 {
+                               /* LDO0 -> LP8733-LDO1 - VDA_DLL_0V8 */
+                               regulator-name = "lp8733-ldo0";
+                               regulator-min-microvolt = <800000>;
+                               regulator-max-microvolt = <800000>;
+                               regulator-boot-on;
+                               regulator-always-on;
+                       };
+
+                       lp8733_ldo1_reg: ldo1 {
+                               /* LDO1 -> LP8733-LDO2 - VDA_LN_1V8 */
+                               regulator-name = "lp8733-ldo1";
+                               regulator-min-microvolt = <1800000>;
+                               regulator-max-microvolt = <1800000>;
+                               regulator-always-on;
+                               regulator-boot-on;
+                       };
+               };
+       };
+
+       tps62873a: regulator@40 {
+               compatible = "ti,tps62873";
+               reg = <0x40>;
+               bootph-pre-ram;
+               regulator-name = "VDD_CPU_AVS";
+               regulator-min-microvolt = <600000>;
+               regulator-max-microvolt = <900000>;
+               regulator-boot-on;
+               regulator-always-on;
+       };
+
+       tps62873b: regulator@43 {
+               compatible = "ti,tps62873";
+               reg = <0x43>;
+               regulator-name = "VDD_CORE_0V8";
+               regulator-min-microvolt = <800000>;
+               regulator-max-microvolt = <800000>;
+               regulator-boot-on;
+               regulator-always-on;
+       };
+};
+
 &mcu_uart0 {
        status = "okay";
        pinctrl-names = "default";