Hi

Am 07.07.20 um 18:40 schrieb Lyude Paul:
> For context - I already reviewed this once, it just missed the dri-devel list by
> accident
> 
> For the whole series:
> 
> Reviewed-by: Lyude Paul <lyude@redhat.com>

I pushed the patches into drm-misc-next and also added a comment in the
commit message on the busy-waiting thing you asked about.

Best regards
Thomas

> 
> On Tue, 2020-07-07 at 10:24 +0200, Thomas Zimmermann wrote:
>> Mgag200's modesetting still utilizes the prepare and commit functions
>> that were part of the non-atomic interface. This patchset integrates
>> them into the simple-display's enable function.
>>
>> Patch 1 disables CRTC write protection once when initializing the
>> registers. Before, CRTC registers were temporarily write-protected for
>> no apparent reason.
>>
>> The screen is toggled on and off multiple times while setting a mode.
>> Patch 3 removes any intermediate screen on/off changes.
>>
>> In patch 4, DPMS functionality is reduced to on an off. The DPMS helper
>> function implemements on, off, suspend and standby. In atomic modesetting,
>> only on and off is required.
>>
>> Tested on G200SE HW with Xorg, Weston and fbdev.
>>
>> Thomas Zimmermann (7):
>>   drm/mgag200: Don't write-protect CRTC 0-7 while in mga_crtc_prepare()
>>   drm/mgag200: Move PLL setup out of mode-setting function
>>   drm/mgag200: Don't set or clear <scroff> field during modeset
>>   drm/mgag200: Split DPMS function into helpers
>>   drm/mgag200: Set/clear <syncrst> field in display enable/disable
>>     helpers
>>   drm/mgag200: Rename G200WB prepare/commit function
>>   drm/mgag200: Inline mga_crtc_{prepare,commit}() into enable function
>>
>>  drivers/gpu/drm/mgag200/mgag200_drv.h  |   6 +
>>  drivers/gpu/drm/mgag200/mgag200_mode.c | 168 +++++++++----------------
>>  drivers/gpu/drm/mgag200/mgag200_reg.h  |  11 ++
>>  3 files changed, 76 insertions(+), 109 deletions(-)
>>
>> --
>> 2.27.0
>>
> 
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-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer