linux-kernel - [PATCH 2/3] arm64: dts: ti: k3-j7200: Add the supported frequencies for A72

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Date:   Wed, 9 Aug 2023 23:09:04 +0530
From:   Apurva Nandan <a-nandan@...com>
To:     Apurva Nandan <a-nandan@...com>, Nishanth Menon <nm@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Rafael J Wysocki <rafael@...nel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Amit Kucheria <amitk@...nel.org>,
        Zhang Rui <rui.zhang@...el.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-pm@...r.kernel.org>, Udit Kumar <u-kumar1@...com>,
        Keerthy J <j-keerthy@...com>
Subject: [PATCH 2/3] arm64: dts: ti: k3-j7200: Add the supported frequencies for A72

From: Keerthy <j-keerthy@...com>

Add 750M, 1G, 1.5G & 2G as the supported frequencies for A72.
This enables support for Dynamic Frequency Scaling(DFS)

Signed-off-by: Keerthy <j-keerthy@...com>
Signed-off-by: Apurva Nandan <a-nandan@...com>
---
 arch/arm64/boot/dts/ti/k3-j7200.dtsi | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j7200.dtsi b/arch/arm64/boot/dts/ti/k3-j7200.dtsi
index ef73e6d7e858..7222c453096f 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200.dtsi
@@ -48,6 +48,10 @@ cpu0: cpu@0 {
 			d-cache-line-size = <64>;
 			d-cache-sets = <256>;
 			next-level-cache = <&L2_0>;
+			clocks = <&k3_clks 202 2>;
+			clock-names = "cpu";
+			operating-points-v2 = <&cpu0_opp_table>;
+			#cooling-cells = <2>; /* min followed by max */
 		};
 
 		cpu1: cpu@1 {
@@ -62,6 +66,30 @@ cpu1: cpu@1 {
 			d-cache-line-size = <64>;
 			d-cache-sets = <256>;
 			next-level-cache = <&L2_0>;
+			clocks = <&k3_clks 203 0>;
+			clock-names = "cpu";
+			operating-points-v2 = <&cpu0_opp_table>;
+			#cooling-cells = <2>; /* min followed by max */
+		};
+	};
+
+	cpu0_opp_table: opp-table {
+		compatible = "operating-points-v2";
+
+		opp4-2000000000 {
+			opp-hz = /bits/ 64 <2000000000>;
+		};
+
+		opp3-1500000000 {
+			opp-hz = /bits/ 64 <1500000000>;
+		};
+
+		opp2-1000000000 {
+			opp-hz = /bits/ 64 <1000000000>;
+		};
+
+		opp1-750000000 {
+			opp-hz = /bits/ 64 <750000000>;
 		};
 	};
 
-- 
2.34.1