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From:   Praveenkumar I <quic_ipkumar@quicinc.com>
To:     <agross@kernel.org>, <andersson@kernel.org>,
        <konrad.dybcio@linaro.org>, <robh+dt@kernel.org>,
        <krzysztof.kozlowski+dt@linaro.org>, <conor+dt@kernel.org>,
        <linux-arm-msm@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>
CC:     <quic_varada@quicinc.com>
Subject: [PATCH 1/1] arm64: dts: qcom: ipq9574: Add cpu cooling maps
Date:   Thu, 13 Jul 2023 14:01:01 +0530
Message-ID: <20230713083101.971525-2-quic_ipkumar@quicinc.com>
In-Reply-To: <20230713083101.971525-1-quic_ipkumar@quicinc.com>
References: <20230713083101.971525-1-quic_ipkumar@quicinc.com>
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Add cpu cooling maps for passive trip points. The cpu cooling
device states are mapped to cpufreq based scaling frequencies.

Signed-off-by: Praveenkumar I <quic_ipkumar@quicinc.com>
---
 arch/arm64/boot/dts/qcom/ipq9574.dtsi | 61 +++++++++++++++++++++++----
 1 file changed, 53 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/ipq9574.dtsi b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
index f120c7c52351..45b24c7d5ac3 100644
--- a/arch/arm64/boot/dts/qcom/ipq9574.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
@@ -10,6 +10,7 @@
 #include <dt-bindings/clock/qcom,ipq9574-gcc.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/reset/qcom,ipq9574-gcc.h>
+#include <dt-bindings/thermal/thermal.h>
 
 / {
 	interrupt-parent = <&intc>;
@@ -42,6 +43,7 @@ CPU0: cpu@0 {
 			clock-names = "cpu";
 			operating-points-v2 = <&cpu_opp_table>;
 			cpu-supply = <&ipq9574_s1>;
+			#cooling-cells = <2>;
 		};
 
 		CPU1: cpu@1 {
@@ -54,6 +56,7 @@ CPU1: cpu@1 {
 			clock-names = "cpu";
 			operating-points-v2 = <&cpu_opp_table>;
 			cpu-supply = <&ipq9574_s1>;
+			#cooling-cells = <2>;
 		};
 
 		CPU2: cpu@2 {
@@ -66,6 +69,7 @@ CPU2: cpu@2 {
 			clock-names = "cpu";
 			operating-points-v2 = <&cpu_opp_table>;
 			cpu-supply = <&ipq9574_s1>;
+			#cooling-cells = <2>;
 		};
 
 		CPU3: cpu@3 {
@@ -78,6 +82,7 @@ CPU3: cpu@3 {
 			clock-names = "cpu";
 			operating-points-v2 = <&cpu_opp_table>;
 			cpu-supply = <&ipq9574_s1>;
+			#cooling-cells = <2>;
 		};
 
 		L2_0: l2-cache {
@@ -727,18 +732,28 @@ cpu0-thermal {
 			thermal-sensors = <&tsens 10>;
 
 			trips {
-				cpu-critical {
+				cpu0_crit: cpu-critical {
 					temperature = <120000>;
 					hysteresis = <10000>;
 					type = "critical";
 				};
 
-				cpu-passive {
+				cpu0_alert: cpu-passive {
 					temperature = <110000>;
 					hysteresis = <1000>;
 					type = "passive";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&cpu0_alert>;
+					cooling-device = <&CPU0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		cpu1-thermal {
@@ -747,18 +762,28 @@ cpu1-thermal {
 			thermal-sensors = <&tsens 11>;
 
 			trips {
-				cpu-critical {
+				cpu1_crit: cpu-critical {
 					temperature = <120000>;
 					hysteresis = <10000>;
 					type = "critical";
 				};
 
-				cpu-passive {
+				cpu1_alert: cpu-passive {
 					temperature = <110000>;
 					hysteresis = <1000>;
 					type = "passive";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&cpu1_alert>;
+					cooling-device = <&CPU0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		cpu2-thermal {
@@ -767,18 +792,28 @@ cpu2-thermal {
 			thermal-sensors = <&tsens 12>;
 
 			trips {
-				cpu-critical {
+				cpu2_crit: cpu-critical {
 					temperature = <120000>;
 					hysteresis = <10000>;
 					type = "critical";
 				};
 
-				cpu-passive {
+				cpu2_alert: cpu-passive {
 					temperature = <110000>;
 					hysteresis = <1000>;
 					type = "passive";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&cpu2_alert>;
+					cooling-device = <&CPU0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		cpu3-thermal {
@@ -787,18 +822,28 @@ cpu3-thermal {
 			thermal-sensors = <&tsens 13>;
 
 			trips {
-				cpu-critical {
+				cpu3_crit: cpu-critical {
 					temperature = <120000>;
 					hysteresis = <10000>;
 					type = "critical";
 				};
 
-				cpu-passive {
+				cpu3_alert: cpu-passive {
 					temperature = <110000>;
 					hysteresis = <1000>;
 					type = "passive";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&cpu3_alert>;
+					cooling-device = <&CPU0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		wcss-phyb-thermal {
-- 
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