arm64: dts: imx8mn: Add LPDDR4 EVK pmic support

Add i.MX8MN LPDDR4 EVK pmic driver support.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

diff --git a/arch/arm64/boot/dts/freescale/imx8mn-evk.dts b/arch/arm64/boot/dts/freescale/imx8mn-evk.dts
index 8311b95..389093d 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mn-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mn-evk.dts
@@ -112,17 +112,131 @@
 };
 
 &A53_0 {
-       /delete-property/operating-points-v2;
+       cpu-supply = <&buck2_reg>;
 };
 
-&A53_1 {
-       /delete-property/operating-points-v2;
-};
+&i2c1 {
+       pmic: pca9450@25 {
+               reg = <0x25>;
+               compatible = "nxp,pca9450";
+               /* PMIC PCA9450 PMIC_nINT GPIO1_IO3 */
+               pinctrl-0 = <&pinctrl_pmic>;
+               gpio_intr = <&gpio1 3 GPIO_ACTIVE_LOW>;
+
+               regulators {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       pca9450,pmic-buck2-uses-i2c-dvs;
+                       /* Run/Standby voltage */
+                       pca9450,pmic-buck2-dvs-voltage = <950000>, <850000>;
+
+                       buck1_reg: regulator@0 {
+                               reg = <0>;
+                               regulator-compatible = "buck1";
+                               regulator-min-microvolt = <600000>;
+                               regulator-max-microvolt = <2187500>;
+                               regulator-boot-on;
+                               regulator-always-on;
+                               regulator-ramp-delay = <3125>;
+                       };
+
+                       buck2_reg: regulator@1 {
+                               reg = <1>;
+                               regulator-compatible = "buck2";
+                               regulator-min-microvolt = <600000>;
+                               regulator-max-microvolt = <2187500>;
+                               regulator-boot-on;
+                               regulator-always-on;
+                               regulator-ramp-delay = <3125>;
+                       };
+
+                       buck3_reg: regulator@2 {
+                               reg = <2>;
+                               regulator-compatible = "buck3";
+                               regulator-min-microvolt = <600000>;
+                               regulator-max-microvolt = <2187500>;
+                               regulator-boot-on;
+                               regulator-always-on;
+                       };
 
-&A53_2 {
-       /delete-property/operating-points-v2;
+                       buck4_reg: regulator@3 {
+                               reg = <3>;
+                               regulator-compatible = "buck4";
+                               regulator-min-microvolt = <600000>;
+                               regulator-max-microvolt = <3400000>;
+                               regulator-boot-on;
+                               regulator-always-on;
+                       };
+
+                       buck5_reg: regulator@4 {
+                               reg = <4>;
+                               regulator-compatible = "buck5";
+                               regulator-min-microvolt = <600000>;
+                               regulator-max-microvolt = <3400000>;
+                               regulator-boot-on;
+                               regulator-always-on;
+                       };
+
+                       buck6_reg: regulator@5 {
+                               reg = <5>;
+                               regulator-compatible = "buck6";
+                               regulator-min-microvolt = <600000>;
+                               regulator-max-microvolt = <3400000>;
+                               regulator-boot-on;
+                               regulator-always-on;
+                       };
+
+                       ldo1_reg: regulator@6 {
+                               reg = <6>;
+                               regulator-compatible = "ldo1";
+                               regulator-min-microvolt = <1600000>;
+                               regulator-max-microvolt = <3300000>;
+                               regulator-boot-on;
+                               regulator-always-on;
+                       };
+
+                       ldo2_reg: regulator@7 {
+                               reg = <7>;
+                               regulator-compatible = "ldo2";
+                               regulator-min-microvolt = <800000>;
+                               regulator-max-microvolt = <1150000>;
+                               regulator-boot-on;
+                               regulator-always-on;
+                       };
+
+                       ldo3_reg: regulator@8 {
+                               reg = <8>;
+                               regulator-compatible = "ldo3";
+                               regulator-min-microvolt = <800000>;
+                               regulator-max-microvolt = <3300000>;
+                               regulator-boot-on;
+                               regulator-always-on;
+                       };
+
+                       ldo4_reg: regulator@9 {
+                               reg = <9>;
+                               regulator-compatible = "ldo4";
+                               regulator-min-microvolt = <800000>;
+                               regulator-max-microvolt = <3300000>;
+                               regulator-boot-on;
+                               regulator-always-on;
+                       };
+
+                       ldo5_reg: regulator@10 {
+                               reg = <10>;
+                               regulator-compatible = "ldo5";
+                               regulator-min-microvolt = <1800000>;
+                               regulator-max-microvolt = <3300000>;
+                       };
+               };
+       };
 };
 
-&A53_3 {
-       /delete-property/operating-points-v2;
+&iomuxc {
+       pinctrl_pmic: pmicirq {
+               fsl,pins = <
+                       MX8MN_IOMUXC_GPIO1_IO03_GPIO1_IO3       0x41
+               >;
+       };
 };