linux-kernel - [PATCH v3] arm64: dts: qcom: sc8280xp: Introduce additional tsens instances

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Date: Tue, 6 Feb 2024 15:51:11 -0800
From: Bjorn Andersson <quic_bjorande@...cinc.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio
	<konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        "Krzysztof
 Kozlowski" <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley
	<conor+dt@...nel.org>
CC: <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Johan Hovold <johan@...nel.org>,
        Johan Hovold
	<johan+linaro@...nel.org>,
        Bjorn Andersson <quic_bjorande@...cinc.com>
Subject: [PATCH v3] arm64: dts: qcom: sc8280xp: Introduce additional tsens
 instances

The SC8280XP contains two additional tsens instances, providing among
other things thermal measurements for the GPU.

Add these and a GPU thermal-zone.

Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>
Reviewed-by: Johan Hovold <johan+linaro@...nel.org>
Signed-off-by: Bjorn Andersson <quic_bjorande@...cinc.com>
---
Changes in v3:
- Sorted tsens nodes by address.
- Link to v2: https://lore.kernel.org/r/20240126-sc8280xp-tsens2_3-v2-1-8504d18828de@quicinc.com

Changes in v2:
- Drop TM/SROT comments
- Remove polling delays, rely on interrupts
- Link to v1: https://lore.kernel.org/r/20240118-sc8280xp-tsens2_3-v1-1-e86bce14f6bf@quicinc.com
---
 arch/arm64/boot/dts/qcom/sc8280xp.dtsi | 37 ++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
index febf28356ff8..38ecf6768b1a 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
@@ -4011,6 +4011,28 @@ pdc: interrupt-controller@...0000 {
 			interrupt-controller;
 		};
 
+		tsens2: thermal-sensor@...1000 {
+			compatible = "qcom,sc8280xp-tsens", "qcom,tsens-v2";
+			reg = <0 0x0c251000 0 0x1ff>,
+			      <0 0x0c224000 0 0x8>;
+			#qcom,sensors = <11>;
+			interrupts-extended = <&pdc 122 IRQ_TYPE_LEVEL_HIGH>,
+					      <&pdc 124 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "uplow", "critical";
+			#thermal-sensor-cells = <1>;
+		};
+
+		tsens3: thermal-sensor@...2000 {
+			compatible = "qcom,sc8280xp-tsens", "qcom,tsens-v2";
+			reg = <0 0x0c252000 0 0x1ff>,
+			      <0 0x0c225000 0 0x8>;
+			#qcom,sensors = <5>;
+			interrupts-extended = <&pdc 123 IRQ_TYPE_LEVEL_HIGH>,
+					      <&pdc 125 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "uplow", "critical";
+			#thermal-sensor-cells = <1>;
+		};
+
 		tsens0: thermal-sensor@...3000 {
 			compatible = "qcom,sc8280xp-tsens", "qcom,tsens-v2";
 			reg = <0 0x0c263000 0 0x1ff>, /* TM */
@@ -5212,6 +5234,21 @@ cpu-crit {
 			};
 		};
 
+		gpu-thermal {
+			polling-delay-passive = <0>;
+			polling-delay = <0>;
+
+			thermal-sensors = <&tsens2 2>;
+
+			trips {
+				cpu-crit {
+					temperature = <110000>;
+					hysteresis = <1000>;
+					type = "critical";
+				};
+			};
+		};
+
 		mem-thermal {
 			polling-delay-passive = <250>;
 			polling-delay = <1000>;

---
base-commit: 943b9f0ab2cfbaea148dd6ac279957eb08b96904
change-id: 20240118-sc8280xp-tsens2_3-a5fd9a48d655

Best regards,
-- 
Bjorn Andersson <quic_bjorande@...cinc.com>