Re: [PATCH] drm/amd/powerplay: wrong control mode cause the fan spins faster unnecessarily

2017-11-01 Thread Alex Deucher
On Wed, Nov 1, 2017 at 5:24 AM, Evan Quan wrote: > The fan control mode can either be FDO_PWM_MODE_STATIC or > FDO_PWM_MODE_STATIC_RPM. > Setting it as AMD_FAN_CTRL_AUTO will cause the fan spin faster wrongly. > > This can be reproduced by: > '# cat /sys/class/hwmon/hwmon0/pwm1 >38 > '# cat /

[PATCH] drm/amd/powerplay: wrong control mode cause the fan spins faster unnecessarily

2017-11-01 Thread Evan Quan
The fan control mode can either be FDO_PWM_MODE_STATIC or FDO_PWM_MODE_STATIC_RPM. Setting it as AMD_FAN_CTRL_AUTO will cause the fan spin faster wrongly. This can be reproduced by: '# cat /sys/class/hwmon/hwmon0/pwm1 38 '# cat /sys/class/hwmon/hwmon0/pwm1_enable 2 '# echo "2" > /sys/class/