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| author | Andrius Štikonas <andrius@stikonas.eu> | 2019-07-24 20:17:15 +0100 |
|---|---|---|
| committer | Heiko Stuebner <heiko@sntech.de> | 2019-07-25 22:08:51 +0200 |
| commit | 5882d65c169152178e6fb2fa2e5e3a72fcb08248 (patch) | |
| tree | 0b5e6994d13a838548f30e7561f424e79702f1bc /drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | |
| parent | 84ebd2da6d046781a67430cf3e6a138afe2ce15e (diff) | |
arm64: dts: rockchip: Add PWM fan for RockPro64
RockPro64 has a dedicated circuit for driving a 12V fan from PWM1.
At the moment this makes fan spin at full speed. fancontrol can be used
to control fan speed. E.g. the following config file works well:
INTERVAL=10
DEVPATH=hwmon0=devices/platform/pwm-fan
DEVNAME=hwmon0=pwmfan
FCTEMPS=hwmon0/device/pwm1=../thermal/thermal_zone0/temp
MINTEMP=hwmon0/device/pwm1=40
MAXTEMP=hwmon0/device/pwm1=60
MINSTART=hwmon0/device/pwm1=100
MINSTOP=hwmon0/device/pwm1=70
In the future it would be nice to define trip points in dts file,
so that kernel could adjust fan speed itself.
Signed-off-by: Andrius Štikonas <andrius@stikonas.eu>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c')
0 files changed, 0 insertions, 0 deletions