linux-kernel - [PATCH] arm64: dts: qcom: msm8996: Add gpu cooling support

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Date:   Wed, 10 Feb 2021 11:40:45 +0000
From:   Yassine Oudjana <y.oudjana@...tonmail.com>
To:     "linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
        "phone-devel@...r.kernel.org" <phone-devel@...r.kernel.org>
Cc:     "agross@...nel.org" <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH] arm64: dts: qcom: msm8996: Add gpu cooling support

Add cooling-cells property and cooling maps for the GPU.

Signed-off-by: Yassine Oudjana <y.oudjana@...tonmail.com>
---
 arch/arm64/boot/dts/qcom/msm8996.dtsi | 23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
index 7eef07e73e25..19bfca3133a4 100644
--- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
@@ -7,6 +7,7 @@
 #include <dt-bindings/clock/qcom,mmcc-msm8996.h>
 #include <dt-bindings/clock/qcom,rpmcc.h>
 #include <dt-bindings/soc/qcom,apr.h>
+#include <dt-bindings/thermal/thermal.h>

 / {
 	interrupt-parent = <&intc>;
@@ -618,7 +619,7 @@ hdmi_phy: hdmi-phy@...600 {
 					      "ref";
 			};
 		};
-		gpu@...000 {
+		gpu: gpu@...000 {
 			compatible = "qcom,adreno-530.2", "qcom,adreno";
 			#stream-id-cells = <16>;

@@ -650,6 +651,8 @@ gpu@...000 {

 			operating-points-v2 = <&gpu_opp_table>;

+			#cooling-cells = <2>;
+
 			gpu_opp_table: opp-table {
 				compatible  ="operating-points-v2";

@@ -2305,7 +2308,14 @@ trips {
 				gpu1_alert0: trip-point0 {
 					temperature = <90000>;
 					hysteresis = <2000>;
-					type = "hot";
+					type = "passive";
+				};
+			};
+
+			cooling-maps {
+				map0 {
+					trip = <&gpu1_alert0>;
+					cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
 				};
 			};
 		};
@@ -2320,7 +2330,14 @@ trips {
 				gpu2_alert0: trip-point0 {
 					temperature = <90000>;
 					hysteresis = <2000>;
-					type = "hot";
+					type = "passive";
+				};
+			};
+
+			cooling-maps {
+				map0 {
+					trip = <&gpu2_alert0>;
+					cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
 				};
 			};
 		};
--
2.30.0