arm64: dts: allwinner: a64: Orange Pi Win: Adjust CSI power rails

The Orange Pi Win board uses the AXP's ALDO1 power rail to drive the
VCC-CSI line, which, according to the schematic, needs to be set to 2.8V.

Also the ELDO3 power rail is connected to the CSI, with somewhat unclear
voltage requirements. Add this regulator and allow the voltage to be set
between 1.5V and 1.8V, which are the voltages mentioned in the
schematic.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-orangepi-win.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-orangepi-win.dts
index 58e6b8cbd7d1affd2d58c5158e7cca2cd62f9708..c879aa8d8d1bc1b2c7bb82ea630d3cf313c587d4 100644 (file)
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-orangepi-win.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-orangepi-win.dts
@@ -168,9 +168,8 @@ axp803: pmic@3a3 {
 #include "axp803.dtsi"
 
 &reg_aldo1 {
-       regulator-always-on;
-       regulator-min-microvolt = <1800000>;
-       regulator-max-microvolt = <3300000>;
+       regulator-min-microvolt = <2800000>;
+       regulator-max-microvolt = <2800000>;
        regulator-name = "afvcc-csi";
 };
 
@@ -253,6 +252,12 @@ &reg_eldo1 {
        regulator-name = "cpvdd";
 };
 
+&reg_eldo3 {
+       regulator-min-microvolt = <1500000>;
+       regulator-max-microvolt = <1800000>;
+       regulator-name = "dvdd-csi";
+};
+
 &reg_fldo1 {
        regulator-min-microvolt = <1200000>;
        regulator-max-microvolt = <1200000>;