From: Thierry Reding <thierry.reding@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>
Cc: Jon Hunter <jonathanh@nvidia.com>,
Mikko Perttunen <mperttunen@nvidia.com>,
Rob Herring <robh+dt@kernel.org>,
linux-tegra@vger.kernel.org, devicetree@vger.kernel.org,
linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 3/3] arm64: tegra: p2972: Enable the CPU, GPU and AUX thermal zones
Date: Fri, 23 Nov 2018 13:18:39 +0100 [thread overview]
Message-ID: <20181123121839.18573-3-thierry.reding@gmail.com> (raw)
In-Reply-To: <20181123121839.18573-1-thierry.reding@gmail.com>
From: Thierry Reding <treding@nvidia.com>
Enable these thermal zones to be able to monitor their temperatures and
control the fan to cool down the system if necessary.
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
.../boot/dts/nvidia/tegra194-p2972-0000.dts | 91 ++++++++++++++++++-
1 file changed, 90 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts b/arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts
index cbae8e8b1281..e29f8f6117c8 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts
@@ -43,8 +43,97 @@
};
};
- fan {
+ fan: fan {
compatible = "pwm-fan";
pwms = <&pwm4 0 45334>;
+
+ cooling-levels = <0 64 128 255>;
+ cooling-min-state = <0>;
+ cooling-max-state = <3>;
+ #cooling-cells = <2>;
+ };
+
+ thermal-zones {
+ cpu {
+ polling-delay = <0>;
+ polling-delay-passive = <500>;
+ status = "okay";
+
+ trips {
+ cpu_trip_critical: critical {
+ temperature = <96500>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+
+ cpu_trip_hot: hot {
+ temperature = <70000>;
+ hysteresis = <2000>;
+ type = "hot";
+ };
+
+ cpu_trip_active: active {
+ temperature = <50000>;
+ hysteresis = <2000>;
+ type = "active";
+ };
+
+ cpu_trip_passive: passive {
+ temperature = <30000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+ };
+
+ cooling-maps {
+ cpu-critical {
+ cooling-device = <&fan 3 3>;
+ trip = <&cpu_trip_critical>;
+ };
+
+ cpu-hot {
+ cooling-device = <&fan 2 2>;
+ trip = <&cpu_trip_hot>;
+ };
+
+ cpu-active {
+ cooling-device = <&fan 1 1>;
+ trip = <&cpu_trip_active>;
+ };
+
+ cpu-passive {
+ cooling-device = <&fan 0 0>;
+ trip = <&cpu_trip_passive>;
+ };
+ };
+ };
+
+ gpu {
+ polling-delay = <0>;
+ polling-delay-passive = <500>;
+ status = "okay";
+
+ trips {
+ gpu_alert0: critical {
+ temperature = <99000>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+ };
+ };
+
+ aux {
+ polling-delay = <0>;
+ polling-delay-passive = <500>;
+ status = "okay";
+
+ trips {
+ aux_alert0: critical {
+ temperature = <90000>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+ };
+ };
};
};
--
2.19.1
next prev parent reply other threads:[~2018-11-23 12:18 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-23 12:18 [PATCH 1/3] dt-bindings: thermal: tegra-bpmp: Add Tegra194 support Thierry Reding
2018-11-23 12:18 ` [PATCH 2/3] arm64: tegra: Add thermal zones on Tegra194 Thierry Reding
2018-12-15 17:28 ` Eduardo Valentin
2018-11-23 12:18 ` Thierry Reding [this message]
2018-12-15 17:28 ` [PATCH 3/3] arm64: tegra: p2972: Enable the CPU, GPU and AUX thermal zones Eduardo Valentin
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