arm64: dts: mediatek: asurada: Add system-wide power supplies

Add system-wide power supplies present on all of the boards in the
Asurada family.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220629155956.1138955-6-nfraprado@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

diff --git a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
index e106362..ca55dd0 100644 (file)
--- a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
@@ -19,6 +19,70 @@
                device_type = "memory";
                reg = <0 0x40000000 0 0x80000000>;
        };
+
+       /* system wide LDO 1.8V power rail */
+       pp1800_ldo_g: regulator-1v8-g {
+               compatible = "regulator-fixed";
+               regulator-name = "pp1800_ldo_g";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <1800000>;
+               vin-supply = <&pp3300_g>;
+       };
+
+       /* system wide switching 3.3V power rail */
+       pp3300_g: regulator-3v3-g {
+               compatible = "regulator-fixed";
+               regulator-name = "pp3300_g";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               vin-supply = <&ppvar_sys>;
+       };
+
+       /* system wide LDO 3.3V power rail */
+       pp3300_ldo_z: regulator-3v3-z {
+               compatible = "regulator-fixed";
+               regulator-name = "pp3300_ldo_z";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               vin-supply = <&ppvar_sys>;
+       };
+
+       /* separately switched 3.3V power rail */
+       pp3300_u: regulator-3v3-u {
+               compatible = "regulator-fixed";
+               regulator-name = "pp3300_u";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               /* enable pin wired to GPIO controlled by EC */
+               vin-supply = <&pp3300_g>;
+       };
+
+       /* system wide switching 5.0V power rail */
+       pp5000_a: regulator-5v0-a {
+               compatible = "regulator-fixed";
+               regulator-name = "pp5000_a";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <5000000>;
+               regulator-max-microvolt = <5000000>;
+               vin-supply = <&ppvar_sys>;
+       };
+
+       /* system wide semi-regulated power rail from battery or USB */
+       ppvar_sys: regulator-var-sys {
+               compatible = "regulator-fixed";
+               regulator-name = "ppvar_sys";
+               regulator-always-on;
+               regulator-boot-on;
+       };
 };
 
 &pio {