linux-kernel - [PATCH 6/7] ARM: dts: qcom: msm8226: Hook up CPU cooling

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Message-Id: <20240619-msm8226-cpufreq-v1-6-85143f5291d1@lucaweiss.eu>
Date: Wed, 19 Jun 2024 23:02:50 +0200
From: Luca Weiss <luca@...aweiss.eu>
To: ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org, 
 Jassi Brar <jassisinghbrar@...il.com>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Bjorn Andersson <andersson@...nel.org>, 
 Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, Konrad Dybcio <konrad.dybcio@...aro.org>
Cc: linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-clk@...r.kernel.org, 
 Luca Weiss <luca@...aweiss.eu>
Subject: [PATCH 6/7] ARM: dts: qcom: msm8226: Hook up CPU cooling

Add cooling-maps for the CPU thermal zones so the driver can actually do
something when the CPU temperature rises too much.

Signed-off-by: Luca Weiss <luca@...aweiss.eu>
---
 arch/arm/boot/dts/qcom/qcom-msm8226.dtsi | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/arch/arm/boot/dts/qcom/qcom-msm8226.dtsi b/arch/arm/boot/dts/qcom/qcom-msm8226.dtsi
index 6e9fbe2e7223..9deee34fc5ca 100644
--- a/arch/arm/boot/dts/qcom/qcom-msm8226.dtsi
+++ b/arch/arm/boot/dts/qcom/qcom-msm8226.dtsi
@@ -12,6 +12,7 @@
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/power/qcom-rpmpd.h>
 #include <dt-bindings/reset/qcom,gcc-msm8974.h>
+#include <dt-bindings/thermal/thermal.h>
 
 / {
 	#address-cells = <1>;
@@ -48,6 +49,7 @@ CPU0: cpu@0 {
 			operating-points-v2 = <&cpu_opp_table>;
 			qcom,acc = <&acc0>;
 			qcom,saw = <&saw0>;
+			#cooling-cells = <2>;
 		};
 
 		CPU1: cpu@1 {
@@ -60,6 +62,7 @@ CPU1: cpu@1 {
 			operating-points-v2 = <&cpu_opp_table>;
 			qcom,acc = <&acc1>;
 			qcom,saw = <&saw1>;
+			#cooling-cells = <2>;
 		};
 
 		CPU2: cpu@2 {
@@ -72,6 +75,7 @@ CPU2: cpu@2 {
 			operating-points-v2 = <&cpu_opp_table>;
 			qcom,acc = <&acc2>;
 			qcom,saw = <&saw2>;
+			#cooling-cells = <2>;
 		};
 
 		CPU3: cpu@3 {
@@ -84,6 +88,7 @@ CPU3: cpu@3 {
 			operating-points-v2 = <&cpu_opp_table>;
 			qcom,acc = <&acc3>;
 			qcom,saw = <&saw3>;
+			#cooling-cells = <2>;
 		};
 
 		L2: l2-cache {
@@ -1256,6 +1261,16 @@ cpu0-thermal {
 
 			thermal-sensors = <&tsens 5>;
 
+			cooling-maps {
+				map0 {
+					trip = <&cpu_alert0>;
+					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>;
+				};
+			};
+
 			trips {
 				cpu_alert0: trip0 {
 					temperature = <75000>;
@@ -1277,6 +1292,16 @@ cpu1-thermal {
 
 			thermal-sensors = <&tsens 2>;
 
+			cooling-maps {
+				map0 {
+					trip = <&cpu_alert1>;
+					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>;
+				};
+			};
+
 			trips {
 				cpu_alert1: trip0 {
 					temperature = <75000>;

-- 
2.45.2