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Message-Id: <20250611-ipq5018-tsens-v11-2-266566bfd16a@outlook.com>
Date: Wed, 11 Jun 2025 09:12:46 +0400
From: George Moussalem via B4 Relay <devnull+george.moussalem.outlook.com@...nel.org>
To: Amit Kucheria <amitk@...nel.org>,
Thara Gopinath <thara.gopinath@...il.com>,
"Rafael J. Wysocki" <rafael@...nel.org>,
Daniel Lezcano <daniel.lezcano@...aro.org>, Zhang Rui <rui.zhang@...el.com>,
Lukasz Luba <lukasz.luba@....com>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konradybcio@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, linux-pm@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Sricharan Ramabadhran <quic_srichara@...cinc.com>,
George Moussalem <george.moussalem@...look.com>,
Dmitry Baryshkov <lumag@...nel.org>
Subject: [PATCH v11 2/2] arm64: dts: qcom: ipq5018: Add tsens node
From: Sricharan Ramabadhran <quic_srichara@...cinc.com>
IPQ5018 has tsens V1.0 IP with 5 sensors, though 4 are in use.
There is no RPM, so tsens has to be manually enabled. Adding the tsens
and nvmem nodes and adding 4 thermal sensors (zones). The critical trip
temperature is set to 120'C with an action to reboot.
In addition, adding a cooling device to the CPU thermal zone which uses
CPU frequency scaling.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Signed-off-by: Sricharan Ramabadhran <quic_srichara@...cinc.com>
Signed-off-by: George Moussalem <george.moussalem@...look.com>
---
arch/arm64/boot/dts/qcom/ipq5018.dtsi | 182 ++++++++++++++++++++++++++++++++++
1 file changed, 182 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/ipq5018.dtsi b/arch/arm64/boot/dts/qcom/ipq5018.dtsi
index 130360014c5e14c778e348d37e601f60325b0b14..defeb697c8d89686e3aaf2e6f7b6cb7493219336 100644
--- a/arch/arm64/boot/dts/qcom/ipq5018.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq5018.dtsi
@@ -9,6 +9,7 @@
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/clock/qcom,gcc-ipq5018.h>
#include <dt-bindings/reset/qcom,gcc-ipq5018.h>
+#include <dt-bindings/thermal/thermal.h>
/ {
interrupt-parent = <&intc>;
@@ -39,6 +40,7 @@ cpu0: cpu@0 {
next-level-cache = <&l2_0>;
clocks = <&apcs_glb APCS_ALIAS0_CORE_CLK>;
operating-points-v2 = <&cpu_opp_table>;
+ #cooling-cells = <2>;
};
cpu1: cpu@1 {
@@ -49,6 +51,7 @@ cpu1: cpu@1 {
next-level-cache = <&l2_0>;
clocks = <&apcs_glb APCS_ALIAS0_CORE_CLK>;
operating-points-v2 = <&cpu_opp_table>;
+ #cooling-cells = <2>;
};
l2_0: l2-cache {
@@ -182,6 +185,117 @@ pcie0_phy: phy@...00 {
status = "disabled";
};
+ qfprom: qfprom@...00 {
+ compatible = "qcom,ipq5018-qfprom", "qcom,qfprom";
+ reg = <0x000a0000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ tsens_mode: mode@249 {
+ reg = <0x249 0x1>;
+ bits = <0 3>;
+ };
+
+ tsens_base1: base1@249 {
+ reg = <0x249 0x2>;
+ bits = <3 8>;
+ };
+
+ tsens_base2: base2@24a {
+ reg = <0x24a 0x2>;
+ bits = <3 8>;
+ };
+
+ tsens_s0_p1: s0-p1@24b {
+ reg = <0x24b 0x2>;
+ bits = <2 6>;
+ };
+
+ tsens_s0_p2: s0-p2@24c {
+ reg = <0x24c 0x1>;
+ bits = <1 6>;
+ };
+
+ tsens_s1_p1: s1-p1@24c {
+ reg = <0x24c 0x2>;
+ bits = <7 6>;
+ };
+
+ tsens_s1_p2: s1-p2@24d {
+ reg = <0x24d 0x2>;
+ bits = <5 6>;
+ };
+
+ tsens_s2_p1: s2-p1@24e {
+ reg = <0x24e 0x2>;
+ bits = <3 6>;
+ };
+
+ tsens_s2_p2: s2-p2@24f {
+ reg = <0x24f 0x1>;
+ bits = <1 6>;
+ };
+
+ tsens_s3_p1: s3-p1@24f {
+ reg = <0x24f 0x2>;
+ bits = <7 6>;
+ };
+
+ tsens_s3_p2: s3-p2@250 {
+ reg = <0x250 0x2>;
+ bits = <5 6>;
+ };
+
+ tsens_s4_p1: s4-p1@251 {
+ reg = <0x251 0x2>;
+ bits = <3 6>;
+ };
+
+ tsens_s4_p2: s4-p2@254 {
+ reg = <0x254 0x1>;
+ bits = <0 6>;
+ };
+ };
+
+ tsens: thermal-sensor@...000 {
+ compatible = "qcom,ipq5018-tsens";
+ reg = <0x004a9000 0x1000>,
+ <0x004a8000 0x1000>;
+
+ nvmem-cells = <&tsens_mode>,
+ <&tsens_base1>,
+ <&tsens_base2>,
+ <&tsens_s0_p1>,
+ <&tsens_s0_p2>,
+ <&tsens_s1_p1>,
+ <&tsens_s1_p2>,
+ <&tsens_s2_p1>,
+ <&tsens_s2_p2>,
+ <&tsens_s3_p1>,
+ <&tsens_s3_p2>,
+ <&tsens_s4_p1>,
+ <&tsens_s4_p2>;
+
+ nvmem-cell-names = "mode",
+ "base1",
+ "base2",
+ "s0_p1",
+ "s0_p2",
+ "s1_p1",
+ "s1_p2",
+ "s2_p1",
+ "s2_p2",
+ "s3_p1",
+ "s3_p2",
+ "s4_p1",
+ "s4_p2";
+
+ interrupts = <GIC_SPI 184 IRQ_TYPE_EDGE_RISING>;
+ interrupt-names = "uplow";
+ #qcom,sensors = <5>;
+ #thermal-sensor-cells = <1>;
+ };
+
tlmm: pinctrl@...0000 {
compatible = "qcom,ipq5018-tlmm";
reg = <0x01000000 0x300000>;
@@ -631,6 +745,74 @@ pcie@0 {
};
};
+ thermal-zones {
+ cpu-thermal {
+ polling-delay-passive = <0>;
+ thermal-sensors = <&tsens 2>;
+
+ trips {
+ cpu-critical {
+ temperature = <120000>;
+ hysteresis = <2>;
+ type = "critical";
+ };
+
+ cpu_alert: cpu-passive {
+ temperature = <100000>;
+ hysteresis = <2>;
+ type = "passive";
+ };
+ };
+
+ cooling-maps {
+ map0 {
+ trip = <&cpu_alert>;
+ cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+ <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+ };
+ };
+
+ gephy-thermal {
+ polling-delay-passive = <0>;
+ thermal-sensors = <&tsens 4>;
+
+ trips {
+ gephy-critical {
+ temperature = <120000>;
+ hysteresis = <2>;
+ type = "critical";
+ };
+ };
+ };
+
+ top-glue-thermal {
+ polling-delay-passive = <0>;
+ thermal-sensors = <&tsens 3>;
+
+ trips {
+ top-glue-critical {
+ temperature = <120000>;
+ hysteresis = <2>;
+ type = "critical";
+ };
+ };
+ };
+
+ ubi32-thermal {
+ polling-delay-passive = <0>;
+ thermal-sensors = <&tsens 1>;
+
+ trips {
+ ubi32-critical {
+ temperature = <120000>;
+ hysteresis = <2>;
+ type = "critical";
+ };
+ };
+ };
+ };
+
timer {
compatible = "arm,armv8-timer";
interrupts = <GIC_PPI 2 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
--
2.49.0
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