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From:   Martin Botka <martin.botka@somainline.org>
Date:   Mon, 04 Sep 2023 17:57:05 +0200
Subject: [PATCH 5/6] arm64: dts: allwinner: h616: Add CPU Operating
 Performance Points table
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Message-Id: <20230904-cpufreq-h616-v1-5-b8842e525c43@somainline.org>
References: <20230904-cpufreq-h616-v1-0-b8842e525c43@somainline.org>
In-Reply-To: <20230904-cpufreq-h616-v1-0-b8842e525c43@somainline.org>
To:     Mark Rutland <mark.rutland@arm.com>,
        Lorenzo Pieralisi <lpieralisi@kernel.org>,
        Sudeep Holla <sudeep.holla@arm.com>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Viresh Kumar <viresh.kumar@linaro.org>,
        Yangtao Li <tiny.windzz@gmail.com>,
        Chen-Yu Tsai <wens@csie.org>,
        Jernej Skrabec <jernej.skrabec@gmail.com>,
        Samuel Holland <samuel@sholland.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>
Cc:     linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-pm@vger.kernel.org, linux-sunxi@lists.linux.dev,
        devicetree@vger.kernel.org,
        Andre Przywara <andre.przywara@arm.com>,
        Alan Ma <tech@biqu3d.com>,
        Luke Harrison <bttuniversity@biqu3d.com>,
        Marijn Suijten <marijn.suijten@somainline.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@somainline.org>,
        Konrad Dybcio <konrad.dybcio@somainline.org>,
        Rogerio Goncalves <rogerlz@gmail.com>,
        Martin Botka <martin@biqu3d.com>,
        Martin Botka <martin.botka@somainline.org>
Precedence: bulk

Add an Operating Performance Points table for the CPU cores to
enable Dynamic Voltage & Frequency Scaling on the H616.

Also add the needed cpu_speed_grade nvmem cell.

Signed-off-by: Martin Botka <martin.botka@somainline.org>
---
 .../boot/dts/allwinner/sun50i-h616-cpu-opp.dtsi    | 129 +++++++++++++++++++++
 arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi     |   4 +
 2 files changed, 133 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616-cpu-opp.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h616-cpu-opp.dtsi
new file mode 100644
index 000000000000..4c7eaba511a9
--- /dev/null
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h616-cpu-opp.dtsi
@@ -0,0 +1,129 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+// Copyright (C) 2023 Martin Botka <martin@somainline.org>
+
+/ {
+	cpu_opp_table: cpu-opp-table {
+		compatible = "allwinner,sun50i-h616-operating-points";
+		nvmem-cells = <&cpu_speed_grade>;
+		opp-shared;
+
+		opp-480000000 {
+			opp-hz = /bits/ 64 <480000000>;
+			opp-microvolt-speed0 = <900000>;
+			opp-microvolt-speed1 = <900000>;
+			opp-microvolt-speed2 = <900000>;
+			opp-microvolt-speed3 = <900000>;
+			opp-microvolt-speed4 = <900000>;
+			clock-latency-ns = <244144>; /* 8 32k periods */
+			opp-supported-hw = <0x1f>;
+		};
+
+		opp-600000000 {
+			opp-hz = /bits/ 64 <600000000>;
+			opp-microvolt-speed1 = <900000>;
+			opp-microvolt-speed4 = <900000>;
+			clock-latency-ns = <244144>; /* 8 32k periods */
+			opp-supported-hw = <0x12>;
+		};
+
+		opp-720000000 {
+			opp-hz = /bits/ 64 <720000000>;
+			opp-microvolt-speed0 = <900000>;
+			opp-microvolt-speed2 = <900000>;
+			opp-microvolt-speed3 = <900000>;
+			clock-latency-ns = <244144>; /* 8 32k periods */
+			opp-supported-hw = <0xd>;
+		};
+
+		opp-792000000 {
+			opp-hz = /bits/ 64 <792000000>;
+			opp-microvolt-speed1 = <900000>;
+			opp-microvolt-speed4 = <940000>;
+			clock-latency-ns = <244144>; /* 8 32k periods */
+			opp-supported-hw = <0x12>;
+		};
+
+		opp-936000000 {
+			opp-hz = /bits/ 64 <936000000>;
+			opp-microvolt-speed0 = <900000>;
+			opp-microvolt-speed2 = <900000>;
+			opp-microvolt-speed3 = <900000>;
+			clock-latency-ns = <244144>; /* 8 32k periods */
+			opp-supported-hw = <0xd>;
+		};
+
+		opp-1008000000 {
+			opp-hz = /bits/ 64 <1008000000>;
+			opp-microvolt-speed0 = <950000>;
+			opp-microvolt-speed1 = <940000>;
+			opp-microvolt-speed2 = <950000>;
+			opp-microvolt-speed3 = <950000>;
+			opp-microvolt-speed4 = <1020000>;
+			clock-latency-ns = <244144>; /* 8 32k periods */
+			opp-supported-hw = <0x1f>;
+		};
+
+		opp-1104000000 {
+			opp-hz = /bits/ 64 <1104000000>;
+			opp-microvolt-speed0 = <1000000>;
+			opp-microvolt-speed2 = <1000000>;
+			opp-microvolt-speed3 = <1000000>;
+			clock-latency-ns = <244144>; /* 8 32k periods */
+			opp-supported-hw = <0xd>;
+		};
+
+		opp-1200000000 {
+			opp-hz = /bits/ 64 <1200000000>;
+			opp-microvolt-speed0 = <1050000>;
+			opp-microvolt-speed1 = <1020000>;
+			opp-microvolt-speed2 = <1050000>;
+			opp-microvolt-speed3 = <1050000>;
+			opp-microvolt-speed4 = <1100000>;
+			clock-latency-ns = <244144>; /* 8 32k periods */
+			opp-supported-hw = <0x1f>;
+		};
+
+		opp-1320000000 {
+			opp-hz = /bits/ 64 <1320000000>;
+			opp-microvolt-speed0 = <1100000>;
+			opp-microvolt-speed2 = <1100000>;
+			opp-microvolt-speed3 = <1100000>;
+			opp-microvolt-speed4 = <1100000>;
+			clock-latency-ns = <244144>; /* 8 32k periods */
+			opp-supported-hw = <0x1d>;
+		};
+
+		opp-1416000000 {
+			opp-hz = /bits/ 64 <1416000000>;
+			opp-microvolt-speed0 = <1100000>;
+			opp-microvolt-speed2 = <1100000>;
+			opp-microvolt-speed3 = <1100000>;
+			clock-latency-ns = <244144>; /* 8 32k periods */
+			opp-supported-hw = <0xd>;
+		};
+
+		opp-1512000000 {
+			opp-hz = /bits/ 64 <1512000000>;
+			opp-microvolt-speed1 = <1100000>;
+			opp-microvolt-speed3 = <1100000>;
+			clock-latency-ns = <244144>; /* 8 32k periods */
+			opp-supported-hw = <0xa>;
+		};
+	};
+};
+
+&cpu0 {
+	operating-points-v2 = <&cpu_opp_table>;
+};
+
+&cpu1 {
+	operating-points-v2 = <&cpu_opp_table>;
+};
+
+&cpu2 {
+	operating-points-v2 = <&cpu_opp_table>;
+};
+
+&cpu3 {
+	operating-points-v2 = <&cpu_opp_table>;
+};
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
index 063db9634e5f..78e79c591dba 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
@@ -143,6 +143,10 @@ sid: efuse@3006000 {
 			ths_calibration: thermal-sensor-calibration@14 {
 				reg = <0x14 0x8>;
 			};
+
+			cpu_speed_grade: cpu_speed_grade@0 {
+				reg = <0x0 2>;
+			};
 		};
 
 		watchdog: watchdog@30090a0 {

-- 
2.42.0