arm64: dts: rockchip: Enable mp8859 regulator on rk3399-roc-pc

The rk3399-roc-pc uses a MP8859 DC/DC converter for 12V supply.
This supplies 5V only in default state after booting.
Now we can control the output voltage via I2C interface.
Add a node for the driver to reach 12V.

Signed-off-by: Markus Reichl <m.reichl@fivetechno.de>
Link: https://lore.kernel.org/r/20200106211633.2882-6-m.reichl@fivetechno.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
index 8e01b04..9f225e9 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
@@ -110,20 +110,6 @@
                regulator-max-microvolt = <5000000>;
        };
 
-       /*
-        * should be placed inside mp8859, but not until mp8859 has
-        * its own dt-binding.
-        */
-       dc_12v: mp8859-dcdc1 {
-               compatible = "regulator-fixed";
-               regulator-name = "dc_12v";
-               regulator-always-on;
-               regulator-boot-on;
-               regulator-min-microvolt = <12000000>;
-               regulator-max-microvolt = <12000000>;
-               vin-supply = <&vcc_vbus_typec0>;
-       };
-
        /* switched by pmic_sleep */
        vcc1v8_s3: vcca1v8_s3: vcc1v8-s3 {
                compatible = "regulator-fixed";
@@ -546,6 +532,24 @@
                vbus-supply = <&vcc_vbus_typec0>;
                status = "okay";
        };
+
+       mp8859: regulator@66 {
+               compatible = "mps,mp8859";
+               reg = <0x66>;
+               dc_12v: mp8859_dcdc {
+                       regulator-name = "dc_12v";
+                       regulator-min-microvolt = <12000000>;
+                       regulator-max-microvolt = <12000000>;
+                       regulator-always-on;
+                       regulator-boot-on;
+                       vin-supply = <&vcc_vbus_typec0>;
+
+                       regulator-state-mem {
+                               regulator-on-in-suspend;
+                               regulator-suspend-microvolt = <12000000>;
+                       };
+               };
+       };
 };
 
 &i2s0 {