linux-kernel - [PATCH v5 2/2] arm64: dts: qcom: sc7280: Add gpu thermal zone cooling support

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Date:   Wed, 11 Aug 2021 19:53:55 +0530
From:   Akhil P Oommen <akhilpo@...eaurora.org>
To:     freedreno <freedreno@...ts.freedesktop.org>,
        dri-devel@...ts.freedesktop.org,
        OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS 
        <devicetree@...r.kernel.org>, linux-arm-msm@...r.kernel.org,
        Stephen Boyd <swboyd@...omium.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Manaf Meethalavalappu Pallikunhi <manafm@...eaurora.org>
Cc:     Jordan Crouse <jordan@...micpenguin.net>,
        Matthias Kaehlcke <mka@...omium.org>,
        Jonathan Marek <jonathan@...ek.ca>,
        Douglas Anderson <dianders@...omium.org>,
        Rob Clark <robdclark@...il.com>,
        Andy Gross <agross@...nel.org>, linux-kernel@...r.kernel.org
Subject: [PATCH v5 2/2] arm64: dts: qcom: sc7280: Add gpu thermal zone cooling support

From: Manaf Meethalavalappu Pallikunhi <manafm@...eaurora.org>

Add cooling-cells property and the cooling maps for the gpu thermal
zones to support GPU thermal cooling.

Signed-off-by: Manaf Meethalavalappu Pallikunhi <manafm@...eaurora.org>
Signed-off-by: Akhil P Oommen <akhilpo@...eaurora.org>
Reviewed-by: Stephen Boyd <swboyd@...omium.org>
---

(no changes since v1)

 arch/arm64/boot/dts/qcom/sc7280.dtsi | 29 ++++++++++++++++++++++-------
 1 file changed, 22 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index b9006d8..cd2bbf0 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -592,7 +592,7 @@
 			qcom,bcm-voters = <&apps_bcm_voter>;
 		};
 
-		gpu@...0000 {
+		gpu: gpu@...0000 {
 			compatible = "qcom,adreno-635.0", "qcom,adreno";
 			#stream-id-cells = <16>;
 			reg = <0 0x03d00000 0 0x40000>,
@@ -607,6 +607,7 @@
 			qcom,gmu = <&gmu>;
 			interconnects = <&gem_noc MASTER_GFX3D 0 &mc_virt SLAVE_EBI1 0>;
 			interconnect-names = "gfx-mem";
+			#cooling-cells = <2>;
 
 			gpu_opp_table: opp-table {
 				compatible = "operating-points-v2";
@@ -2523,16 +2524,16 @@
 		};
 
 		gpuss0-thermal {
-			polling-delay-passive = <0>;
+			polling-delay-passive = <100>;
 			polling-delay = <0>;
 
 			thermal-sensors = <&tsens1 1>;
 
 			trips {
 				gpuss0_alert0: trip-point0 {
-					temperature = <90000>;
+					temperature = <95000>;
 					hysteresis = <2000>;
-					type = "hot";
+					type = "passive";
 				};
 
 				gpuss0_crit: gpuss0-crit {
@@ -2541,19 +2542,26 @@
 					type = "critical";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&gpuss0_alert0>;
+					cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		gpuss1-thermal {
-			polling-delay-passive = <0>;
+			polling-delay-passive = <100>;
 			polling-delay = <0>;
 
 			thermal-sensors = <&tsens1 2>;
 
 			trips {
 				gpuss1_alert0: trip-point0 {
-					temperature = <90000>;
+					temperature = <95000>;
 					hysteresis = <2000>;
-					type = "hot";
+					type = "passive";
 				};
 
 				gpuss1_crit: gpuss1-crit {
@@ -2562,6 +2570,13 @@
 					type = "critical";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&gpuss1_alert0>;
+					cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		nspss0-thermal {
-- 
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of Code Aurora Forum, hosted by The Linux Foundation.