[PATCH 2/2] drm/amd/pm: add zero RPM stop temp OD setting support for SMU 14.0.2

[Tomasz Pakuła]

On Mon, 17 Mar 2025 at 16:11, Tomasz Pakuła
<tomasz.pakula.oficjalny at gmail.com> wrote:
>
> tomek at komputr /sys/class/drm/card1/device/gpu_od/fan_ctrl $ cat
> fan_zero_rpm_stop_temperature
> FAN_ZERO_RPM_STOP_TEMPERATURE:
> 50
> OD_RANGE:
> ZERO_RPM_STOP_TEMPERATURE: 50 110
>
> tomek at komputr /sys/class/drm/card1/device/gpu_od/fan_ctrl $ sudo tee
> fan_target_temperature <<< "65"
> 65
>
> tomek at komputr /sys/class/drm/card1/device/gpu_od/fan_ctrl $ sudo tee
> fan_target_temperature <<< "c"
> c
>
> tomek at komputr /sys/class/drm/card1/device/gpu_od/fan_ctrl $ cat
> fan_zero_rpm_stop_temperature
> FAN_ZERO_RPM_STOP_TEMPERATURE:
> 50
> OD_RANGE:
> ZERO_RPM_STOP_TEMPERATURE: 50 110

I'm sorry. I copied over the wrong lines here of course. After applying with "c"
the `fan_zero_rpm_stop_temperature` state is as follows (actually applies
the custom setting):

$ cat fan_zero_rpm_stop_temperature
FAN_ZERO_RPM_STOP_TEMPERATURE:
50
OD_RANGE:
ZERO_RPM_STOP_TEMPERATURE: 50 110

$ sudo tee fan_zero_rpm_stop_temperature <<< "65"
65

$ sudo tee fan_zero_rpm_stop_temperature <<< "c"
c

$ cat fan_zero_rpm_stop_temperature
FAN_ZERO_RPM_STOP_TEMPERATURE:
65
OD_RANGE:
ZERO_RPM_STOP_TEMPERATURE: 50 110

Sorry for any confusion caused.
Tomasz