From b10331c8faa1208c61fb98d9b65da2828e239113 Mon Sep 17 00:00:00 2001
From: Frank Wunderlich <frank-w@public-files.de>
Date: Tue, 17 Dec 2024 10:12:21 +0100
Subject: [PATCH 09/32] arm64: dts: mediatek: mt7988: Add CPU OPP table for
 clock scaling

Add operating points defining frequency/voltages of cpu cores.

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20241217091238.16032-8-linux@fw-web.de
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 arch/arm64/boot/dts/mediatek/mt7988a.dtsi | 38 +++++++++++++++++++++++
 1 file changed, 38 insertions(+)

--- a/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
@@ -21,6 +21,10 @@
 			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 @@
 			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 @@
 			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 @@
 			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>;
+			};
 		};
 	};
 
