[PATCH v2 04/16] arm64: dts: mediatek: mt8192-asurada: Add MT6315 PMIC supplies

Chen-Yu Tsai
2026-05-05T10:14:41Z

There are two MT6315 PMICs in the MT8192 Asurada design. One has two
outputs ganged together and two outputs unused. The other has three
outputs ganged together, and one left independent.

Add supplies for all the used regulators. In the case of ganged outputs,
add the supply for just the first output.

Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
---
Changes since v1:
- Fixed pp_4200_g regulator name
- Moved supplies to PMIC top level node
- Added all supplies

All supplies are connected, but since the regulators are ganged
together, only one regulator node is present.
---
.../boot/dts/mediatek/mt8192-asurada.dtsi | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
index 8054e2d20bf1..13960d1c8a02 100644
--- a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
@@ -175,6 +175,17 @@ pp3300_wlan: regulator-3v3-wlan {
gpio = <&pio 143 GPIO_ACTIVE_HIGH>;
};

+ /* system wide switching 4.2V power rail */
+ pp4200_g: regulator-4v2-g {
+ compatible = "regulator-fixed";
+ regulator-name = "pp4200_g";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <4200000>;
+ regulator-max-microvolt = <4200000>;
+ vin-supply = <&ppvar_sys>;
+ };
+
/* system wide switching 5.0V power rail */
pp5000_a: regulator-5v0-a {
compatible = "regulator-fixed";
@@ -1604,6 +1615,10 @@ &spmi {
mt6315_6: pmic@6 {
compatible = "mediatek,mt6315-regulator";
reg = <0x6 SPMI_USID>;
+ pvdd1-supply = <&pp4200_g>;
+ pvdd2-supply = <&pp4200_g>;
+ pvdd3-supply = <&pp4200_g>;
+ pvdd4-supply = <&pp4200_g>;

regulators {
mt6315_6_vbuck1: vbuck1 {
@@ -1629,6 +1644,10 @@ mt6315_6_vbuck3: vbuck3 {
mt6315_7: pmic@7 {
compatible = "mediatek,mt6315-regulator";
reg = <0x7 SPMI_USID>;
+ pvdd1-supply = <&pp4200_g>;
+ pvdd2-supply = <&pp4200_g>;
+ pvdd3-supply = <&pp4200_g>;
+ pvdd4-supply = <&pp4200_g>;

regulators {
mt6315_7_vbuck1: vbuck1 {
--
2.54.0.545.g6539524ca2-goog