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| author |   Christian Hewitt <christianshewitt@gmail.com> | 2024-06-06 09:06:15 +0000 |
|---|---|---|
| committer |   Neil Armstrong <neil.armstrong@linaro.org> | 2024-06-06 11:11:50 +0200 |
| commit | 1d1239a1b0e502faffe43b97d530232285b9f061 (patch) | |
| tree | 9d50063895cb8171d5e12a7d7000deeeb243f0ba | |
| parent | arm64: dts: meson: add GXLX/S905L/p271 support (diff) | |
| download | wireguard-linux-1d1239a1b0e502faffe43b97d530232285b9f061.tar.xz wireguard-linux-1d1239a1b0e502faffe43b97d530232285b9f061.zip | |
arm64: dts: meson: radxa-zero2: add pwm-fan support
The A311D on Zero2 needs active cooling and the board includes a header to
connect a simple fan. Add pwm-fan support with basic thermal properties so
the fan runs when connected.
Suggested-by: Yuntian Zhang <yt@radxa.com>
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240606090615.3946433-1-christianshewitt@gmail.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
| -rw-r--r-- | arch/arm64/boot/dts/amlogic/meson-g12b-radxa-zero2.dts | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-radxa-zero2.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-radxa-zero2.dts index 890f5bfebb03..8445701100d0 100644 --- a/arch/arm64/boot/dts/amlogic/meson-g12b-radxa-zero2.dts +++ b/arch/arm64/boot/dts/amlogic/meson-g12b-radxa-zero2.dts @@ -33,6 +33,13 @@ reg = <0x0 0x0 0x0 0x80000000>; }; + fan0: pwm-fan { + compatible = "pwm-fan"; + #cooling-cells = <2>; + cooling-levels = <0 64 128 192 255>; + pwms = <&pwm_AO_ab 0 40000 0>; + }; + gpio-keys-polled { compatible = "gpio-keys-polled"; poll-interval = <100>; @@ -286,6 +293,23 @@ clock-latency = <50000>; }; +&cpu_thermal { + trips { + cpu_active: cpu-active { + temperature = <70000>; /* millicelsius */ + hysteresis = <2000>; /* millicelsius */ + type = "active"; + }; + }; + + cooling-maps { + map2 { + trip = <&cpu_active>; + cooling-device = <&fan0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; +}; + &frddr_a { status = "okay"; }; |