https://bugs.freedesktop.org/show_bug.cgi?id=73338
--- Comment #59 from Alex Deucher <alexdeucher at gmail.com> --- (In reply to Chernovsky Oleg from comment #58) > Can you elaborate on what each bit of this control register means? Maybe I > just can't into abbreviations :) TMIN - temp at which the fan would be turned on FDO_PWM_MODE - which PWM mode to use: 0 - static PWM based on fuse value 1 - static PWM based on CG_FDO_CTRL0.FDO_STATIC_DUTY value 2 - dynamic PWM 5 - static PWM based on RPM CG_TACH_CTRL.TARGET_PERIOD value TACH_PWM_RESP_RATE - amount to adjust PWM in tach mode As far as I know, only values 1 and 5 are used for FDO_PWM_MODE in the driver for manual control. I'm not sure what dynamic PWM (2) means or how it works. It might be used by the smc for fan control. I also noticed a minor error in the RPM control setup, and I've pushed a patch to my 3.19-wip branch. -- You are receiving this mail because: You are the assignee for the bug. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/dri-devel/attachments/20141201/c44f85a3/attachment.html>
