linux-kernel - [PATCH 1/3] arm64: dts: msm8916: Add cpu cooling maps

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Date:   Tue,  6 Mar 2018 18:35:01 +0530
From:   Amit Kucheria <amit.kucheria@...aro.org>
To:     linux-arm-msm@...r.kernel.org
Cc:     Rajendra Nayak <rnayak@...eaurora.org>,
        Andy Gross <andy.gross@...aro.org>,
        David Brown <david.brown@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>, linux-soc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] arm64: dts: msm8916: Add cpu cooling maps

From: Rajendra Nayak <rnayak@...eaurora.org>

Add cpu cooling maps for cpu passive trip points. The cpu cooling
device states are mapped to cpufreq based scaling frequencies.

Signed-off-by: Rajendra Nayak <rnayak@...eaurora.org>
Signed-off-by: Amit Kucheria <amit.kucheria@...aro.org>
---
 arch/arm64/boot/dts/qcom/msm8916.dtsi | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi
index e468277..acac9e3 100644
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
@@ -15,6 +15,7 @@
 #include <dt-bindings/clock/qcom,gcc-msm8916.h>
 #include <dt-bindings/reset/qcom,gcc-msm8916.h>
 #include <dt-bindings/clock/qcom,rpmcc.h>
+#include <dt-bindings/thermal/thermal.h>
 
 / {
 	model = "Qualcomm Technologies, Inc. MSM8916";
@@ -115,6 +116,10 @@
 			cpu-idle-states = <&CPU_SPC>;
 			clocks = <&apcs 0>;
 			operating-points-v2 = <&cpu_opp_table>;
+			/* cooling options */
+			cooling-min-level = <0>;
+			cooling-max-level = <7>;
+			#cooling-cells = <2>;
 		};
 
 		CPU1: cpu@1 {
@@ -126,6 +131,10 @@
 			cpu-idle-states = <&CPU_SPC>;
 			clocks = <&apcs 0>;
 			operating-points-v2 = <&cpu_opp_table>;
+			/* cooling options */
+			cooling-min-level = <0>;
+			cooling-max-level = <7>;
+			#cooling-cells = <2>;
 		};
 
 		CPU2: cpu@2 {
@@ -137,6 +146,10 @@
 			cpu-idle-states = <&CPU_SPC>;
 			clocks = <&apcs 0>;
 			operating-points-v2 = <&cpu_opp_table>;
+			/* cooling options */
+			cooling-min-level = <0>;
+			cooling-max-level = <7>;
+			#cooling-cells = <2>;
 		};
 
 		CPU3: cpu@3 {
@@ -148,6 +161,10 @@
 			cpu-idle-states = <&CPU_SPC>;
 			clocks = <&apcs 0>;
 			operating-points-v2 = <&cpu_opp_table>;
+			/* cooling options */
+			cooling-min-level = <0>;
+			cooling-max-level = <7>;
+			#cooling-cells = <2>;
 		};
 
 		L2_0: l2-cache {
@@ -196,6 +213,13 @@
 					type = "critical";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&cpu_alert0>;
+					cooling-device = <&CPU0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		cpu-thermal1 {
@@ -216,6 +240,13 @@
 					type = "critical";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&cpu_alert1>;
+					cooling-device = <&CPU0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 	};
-- 
2.7.4