linux-kernel - [PATCH 2/3] ARM: dts: qcom: pm8841: Add thermal zone config

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Message-Id: <20230529221501.43455-3-matti.lehtimaki@gmail.com>
Date:   Tue, 30 May 2023 01:15:00 +0300
From:   Matti Lehtimäki <matti.lehtimaki@...il.com>
To:     linux-arm-msm@...r.kernel.org
Cc:     ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        Matti Lehtimäki <matti.lehtimaki@...il.com>,
        Andy Gross <agross@...nel.org>,
        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>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 2/3] ARM: dts: qcom: pm8841: Add thermal zone config

Add thermal zone for the PMIC thermal sensor. Temperatures are based on
downstream values, except for critical trip point where 140°C is used
instead of 145°C due to limitations without a configured ADC.

Signed-off-by: Matti Lehtimäki <matti.lehtimaki@...il.com>
---
 arch/arm/boot/dts/qcom-pm8841.dtsi | 33 +++++++++++++++++++++++++++++-
 1 file changed, 32 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/qcom-pm8841.dtsi b/arch/arm/boot/dts/qcom-pm8841.dtsi
index b5cdde034d18..3bf2ce5c86a6 100644
--- a/arch/arm/boot/dts/qcom-pm8841.dtsi
+++ b/arch/arm/boot/dts/qcom-pm8841.dtsi
@@ -2,6 +2,37 @@
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/spmi/spmi.h>
 
+
+/ {
+	thermal-zones {
+		pm8841-thermal {
+			polling-delay-passive = <100>;
+			polling-delay = <0>;
+			thermal-sensors = <&pm8841_temp>;
+
+			trips {
+				trip0 {
+					temperature = <105000>;
+					hysteresis = <2000>;
+					type = "passive";
+				};
+
+				trip1 {
+					temperature = <125000>;
+					hysteresis = <2000>;
+					type = "hot";
+				};
+
+				crit {
+					temperature = <140000>;
+					hysteresis = <2000>;
+					type = "critical";
+				};
+			};
+		};
+	};
+};
+
 &spmi_bus {
 
 	pm8841_0: pm8841@4 {
@@ -20,7 +51,7 @@ pm8841_mpps: mpps@...0 {
 			#interrupt-cells = <2>;
 		};
 
-		temp-alarm@...0 {
+		pm8841_temp: temp-alarm@...0 {
 			compatible = "qcom,spmi-temp-alarm";
 			reg = <0x2400>;
 			interrupts = <4 0x24 0 IRQ_TYPE_EDGE_RISING>;
-- 
2.34.1