Unverified Commit 343855d2 authored by Frank Wunderlich's avatar Frank Wunderlich Committed by AngeloGioacchino Del Regno
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arm64: dts: mediatek: mt7988: Add CPU OPP table for clock scaling 



Add operating points defining frequency/voltages of cpu cores.

Signed-off-by: default avatarFrank Wunderlich <frank-w@public-files.de>
Reviewed-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20241217091238.16032-8-linux@fw-web.de


Signed-off-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
parent b87cf198

arch/arm64/boot/dts/mediatek/mt7988a.dtsi

+38 −0
Original line number Diff line number Diff line
@@ -21,6 +21,10 @@ cpu@0 { 
			reg = <0x0>;

			device_type = "cpu";

			enable-method = "psci";

			clocks = <&mcusys CLK_MCU_ARM_DIV_SEL>,

				 <&topckgen CLK_TOP_XTAL>;

			clock-names = "cpu", "intermediate";

			operating-points-v2 = <&cluster0_opp>;

		};



		cpu@1 {
@@ -28,6 +32,10 @@ cpu@1 { 
			reg = <0x1>;

			device_type = "cpu";

			enable-method = "psci";

			clocks = <&mcusys CLK_MCU_ARM_DIV_SEL>,

				 <&topckgen CLK_TOP_XTAL>;

			clock-names = "cpu", "intermediate";

			operating-points-v2 = <&cluster0_opp>;

		};



		cpu@2 {
@@ -35,6 +43,10 @@ cpu@2 { 
			reg = <0x2>;

			device_type = "cpu";

			enable-method = "psci";

			clocks = <&mcusys CLK_MCU_ARM_DIV_SEL>,

				 <&topckgen CLK_TOP_XTAL>;

			clock-names = "cpu", "intermediate";

			operating-points-v2 = <&cluster0_opp>;

		};



		cpu@3 {
@@ -42,6 +54,32 @@ cpu@3 { 
			reg = <0x3>;

			device_type = "cpu";

			enable-method = "psci";

			clocks = <&mcusys CLK_MCU_ARM_DIV_SEL>,

				 <&topckgen CLK_TOP_XTAL>;

			clock-names = "cpu", "intermediate";

			operating-points-v2 = <&cluster0_opp>;

		};



		cluster0_opp: opp-table-0 {

			compatible = "operating-points-v2";

			opp-shared;



			opp-800000000 {

				opp-hz = /bits/ 64 <800000000>;

				opp-microvolt = <850000>;

			};

			opp-1100000000 {

				opp-hz = /bits/ 64 <1100000000>;

				opp-microvolt = <850000>;

			};

			opp-1500000000 {

				opp-hz = /bits/ 64 <1500000000>;

				opp-microvolt = <850000>;

			};

			opp-1800000000 {

				opp-hz = /bits/ 64 <1800000000>;

				opp-microvolt = <900000>;

			};

		};

	};