[2/4] arm64: dts: allwinner: h6: pine: Add CPU supply regulator
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Message ID 20190214130910.9201-3-tiny.windzz@gmail.com
State New
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Series
  • arm64: dts: allwinner: h6: Enable CPU DVFS(cpufreq)
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Commit Message

Frank Lee Feb. 14, 2019, 1:09 p.m. UTC
The original pine use the dcdca to supply the CPU cores. According
to the axp805 spec, the range of dcdca is 0.6 to 1.1v, 1.12 to 1.52v.
In order to support more CPU frequency, slightly increase the voltage
maximum and minimum.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
---
 arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

Patch
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diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts
index bdb8470fc8dc..95c81250c2b3 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts
@@ -213,8 +213,8 @@ 
 
 			reg_dcdca: dcdca {
 				regulator-always-on;
-				regulator-min-microvolt = <810000>;
-				regulator-max-microvolt = <1080000>;
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <1160000>;
 				regulator-name = "vdd-cpu";
 			};
 
@@ -251,6 +251,10 @@ 
 	};
 };
 
+&cpu0 {
+	cpu-supply = <&reg_dcdca>;
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_ph_pins>;