diff options
| author | Aaron Kling <webgeek1234@gmail.com> | 2025-04-27 15:05:32 -0500 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2025-05-08 22:57:46 +0200 |
| commit | b84f1c0187653b2a91919624e2da0dab0b036a6f (patch) | |
| tree | a40d338c7409afee58b41dba25e0d116fb68d4d0 | |
| parent | 01f11ffdfd909e870c3863af60875e8de328790a (diff) | |
arm64: tegra: Enable PWM fan on the Jetson TX2 Devkit
This is based on the existing configuration of the Jetson TX2 NX devkit.
The fan and thermal characteristics of the two devkits are similar, so
using the same configuration.
Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
Link: https://lore.kernel.org/r/20250427-tx2-therm-v1-1-65ddb4314723@gmail.com
Signed-off-by: Thierry Reding <treding@nvidia.com>
| -rw-r--r-- | arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts b/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts index 15aa49fc4503..a50fd205daa8 100644 --- a/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts +++ b/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts @@ -2409,6 +2409,10 @@ }; }; + pwm@c340000 { + status = "okay"; + }; + pcie@10003000 { status = "okay"; @@ -2508,6 +2512,16 @@ }; }; + fan: pwm-fan { + compatible = "pwm-fan"; + pwms = <&pwm4 0 45334>; + fan-supply = <&vdd_fan>; + + /* cooling level (0, 1, 2, 3) - pwm inverted */ + cooling-levels = <255 128 64 0>; + #cooling-cells = <2>; + }; + vdd_sd: regulator-vdd-sd { compatible = "regulator-fixed"; regulator-name = "SD_CARD_SW_PWR"; @@ -2556,6 +2570,17 @@ vin-supply = <&vdd_5v0_sys>; }; + vdd_fan: regulator-vdd-fan { + compatible = "regulator-fixed"; + regulator-name = "VDD_FAN"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + + gpio = <&exp1 4 GPIO_ACTIVE_LOW>; + + vin-supply = <&vdd_5v0_sys>; + }; + sound { compatible = "nvidia,tegra186-audio-graph-card"; status = "okay"; @@ -2621,4 +2646,88 @@ label = "NVIDIA Jetson TX2 APE"; }; + + thermal-zones { + cpu-thermal { + 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 = <79000>; + hysteresis = <2000>; + type = "hot"; + }; + + cpu_trip_active: active { + temperature = <62000>; + hysteresis = <2000>; + type = "active"; + }; + + cpu_trip_passive: passive { + temperature = <45000>; + hysteresis = <2000>; + type = "passive"; + }; + }; + + cooling-maps { + map0 { + cooling-device = <&fan 3 3>; + trip = <&cpu_trip_critical>; + }; + + map1 { + cooling-device = <&fan 2 2>; + trip = <&cpu_trip_hot>; + }; + + map2 { + cooling-device = <&fan 1 1>; + trip = <&cpu_trip_active>; + }; + + map3 { + cooling-device = <&fan 0 0>; + trip = <&cpu_trip_passive>; + }; + }; + }; + + aux-thermal { + polling-delay = <0>; + polling-delay-passive = <500>; + status = "okay"; + + trips { + aux_alert0: critical { + temperature = <90000>; + hysteresis = <0>; + type = "critical"; + }; + }; + }; + + gpu-thermal { + polling-delay = <0>; + polling-delay-passive = <500>; + status = "okay"; + + trips { + gpu_alert0: critical { + temperature = <99000>; + hysteresis = <0>; + type = "critical"; + }; + }; + }; + }; }; |