From: Ondrej Jirman <meg...@megous.com>

Add SY8106A regulator to r_i2c bus and enable the r_i2c bus on
Orange Pi PC, then set the power supply of the ARM cores to this
regulator, in order to enable DVFS.

Signed-off-by: Ondrej Jirman <meg...@megous.com>
[Icenowy: Enable DVFS in this patch, slight changes and change commit
 message]
Signed-off-by: Icenowy Zheng <icen...@aosc.io>
---
 arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts 
b/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts
index 998b60f8d295..d855f8b6254e 100644
--- a/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts
+++ b/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts
@@ -98,6 +98,10 @@
        status = "okay";
 };
 
+&cpu0 {
+       cpu-supply = <&reg_sy8106a>;
+};
+
 &ehci0 {
        status = "okay";
 };
@@ -160,6 +164,21 @@
        };
 };
 
+&r_i2c {
+       status = "okay";
+
+       reg_sy8106a: regulator@65 {
+               compatible = "silergy,sy8106a";
+               reg = <0x65>;
+               regulator-name = "vdd-cpux";
+               regulator-min-microvolt = <1000000>;
+               regulator-max-microvolt = <1400000>;
+               regulator-ramp-delay = <200>;
+               regulator-boot-on;
+               regulator-always-on;
+       };
+};
+
 &r_pio {
        leds_r_opc: led_pins@0 {
                pins = "PL10";
-- 
2.13.0

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