ARM: dts: rockchip: Add missing cpu operating points for rk3288-tinker
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  • ARM: dts: rockchip: Add missing cpu operating points for rk3288-tinker
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Commit Message

redchenjs@live.com Dec. 1, 2019, 6:28 a.m. UTC
The generic operating points specified in rk3288.dtsi are specified by
Rockchip as conservative and for all cases.

The Tinker Board / S devices use a special chip variant called rk3288-c
and use different operating points with a higher max frequency.

So add the missing operating points for Tinker Board / S devices, also
increase the regulator-max-microvolt to 1400000 so that the cpu can
operate at 1.8 GHz.

Signed-off-by: Jack Chen <redchenjs@live.com>
---
 arch/arm/boot/dts/rk3288-tinker.dtsi | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

Patch
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diff --git a/arch/arm/boot/dts/rk3288-tinker.dtsi b/arch/arm/boot/dts/rk3288-tinker.dtsi
index 81e4e953d4a4..09e83b3d5e7d 100644
--- a/arch/arm/boot/dts/rk3288-tinker.dtsi
+++ b/arch/arm/boot/dts/rk3288-tinker.dtsi
@@ -113,6 +113,17 @@ 
 	cpu0-supply = <&vdd_cpu>;
 };
 
+&cpu_opp_table {
+	opp-1704000000 {
+		opp-hz = /bits/ 64 <1704000000>;
+		opp-microvolt = <1350000>;
+	};
+	opp-1800000000 {
+		opp-hz = /bits/ 64 <1800000000>;
+		opp-microvolt = <1400000>;
+	};
+};
+
 &gmac {
 	assigned-clocks = <&cru SCLK_MAC>;
 	assigned-clock-parents = <&ext_gmac>;
@@ -175,7 +186,7 @@ 
 				regulator-always-on;
 				regulator-boot-on;
 				regulator-min-microvolt = <750000>;
-				regulator-max-microvolt = <1350000>;
+				regulator-max-microvolt = <1400000>;
 				regulator-name = "vdd_arm";
 				regulator-ramp-delay = <6000>;
 				regulator-state-mem {