linux-kernel - [RFC 7/7] arm64: dts: qcom: x1e80100: Enable LLCC/DDR dvfs

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Date: Wed, 17 Jan 2024 23:04:58 +0530
From: Sibi Sankar <quic_sibis@...cinc.com>
To: <sudeep.holla@....com>, <cristian.marussi@....com>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <jassisinghbrar@...il.com>,
        <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>
CC: <linux-kernel@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <quic_rgottimu@...cinc.com>,
        <quic_kshivnan@...cinc.com>, <quic_sibis@...cinc.com>,
        <conor+dt@...nel.org>
Subject: [RFC 7/7] arm64: dts: qcom: x1e80100: Enable LLCC/DDR dvfs

Enable LLCC/DDR dvfs through the Qualcomm's SCMI vendor protocol.

Signed-off-by: Sibi Sankar <quic_sibis@...cinc.com>
---
 arch/arm64/boot/dts/qcom/x1e80100.dtsi | 48 ++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/x1e80100.dtsi b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
index 6856a206f7fc..3dc6f32fbb4c 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100.dtsi
+++ b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
@@ -329,6 +329,54 @@ scmi_dvfs: protocol@13 {
 				reg = <0x13>;
 				#clock-cells = <1>;
 			};
+
+			scmi_vendor: protocol@80 {
+				reg = <0x80>;
+
+				memlat {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					memory@0 {
+						reg = <0x0>; /* Memory Type DDR */
+						freq-table-khz = <200000 4224000>;
+
+						monitor-0 {
+							qcom,cpulist = <&CPU0 &CPU1 &CPU2 &CPU3 &CPU4 &CPU5 &CPU6 &CPU7 &CPU8 &CPU9 &CPU10 &CPU11>;
+							qcom,cpufreq-memfreq-tbl = < 999000 547000 >,
+										   < 1440000 768000 >,
+										   < 1671000 1555000 >,
+										   < 2189000 2092000 >,
+										   < 2156000 3187000 >,
+										   < 3860000 4224000 >;
+						};
+
+						monitor-1 {
+							qcom,compute-mon;
+							qcom,cpulist = <&CPU0 &CPU1 &CPU2 &CPU3 &CPU4 &CPU5 &CPU6 &CPU7 &CPU8 &CPU9 &CPU10 &CPU11>;
+							qcom,cpufreq-memfreq-tbl = < 1440000 200000 >,
+										   < 2189000 768000 >,
+										   < 2156000 1555000 >,
+										   < 3860000 2092000 >;
+						};
+					};
+
+					memory@1 {
+						reg = <0x1>; /* Memory Type LLCC */
+						freq-table-khz = <300000 1067000>;
+
+						monitor-0 {
+							qcom,cpulist = <&CPU0 &CPU1 &CPU2 &CPU3 &CPU4 &CPU5 &CPU6 &CPU7 &CPU8 &CPU9 &CPU10 &CPU11>;
+							qcom,cpufreq-memfreq-tbl = < 999000 300000 >,
+										   < 1440000 466000 >,
+										   < 1671000 600000 >,
+										   < 2189000 806000 >,
+										   < 2156000 933000 >,
+										   < 3860000 1066000 >;
+						};
+					};
+				};
+			};
 		};
 	};
 
-- 
2.34.1