[RFC 0/5] HDMI 2.0+ video modes handling in DRM core

Jose Abreu Jose.Abreu at synopsys.com
Thu Mar 23 10:37:08 UTC 2017


Hi Shashank,


On 22-03-2017 18:57, Sharma, Shashank wrote:
> Hi Jose, 
> I can't find the other patches of this series in dri patchwork, am I missing something ?

You can find them now in patchwork (I don't know what happened).

>
> Also, I am planning to publish a series for YUV 420 handling, where I have re-used one of your patch to parse YUV 420 block, with some modifications :-).  

Nice :) Please cc me and I will try to review them.

Best regards,
Jose Miguel Abreu

>
> Regards
> Shashank 
> -----Original Message-----
> From: Jose Abreu [mailto:Jose.Abreu at synopsys.com] 
> Sent: Wednesday, March 22, 2017 8:13 PM
> To: dri-devel at lists.freedesktop.org
> Cc: Carlos Palminha <CARLOS.PALMINHA at synopsys.com>; Vetter, Daniel <daniel.vetter at intel.com>; Sharma, Shashank <shashank.sharma at intel.com>; ville.syrjala at linux.intel.com
> Subject: Re: [RFC 0/5] HDMI 2.0+ video modes handling in DRM core
>
> ++ Daniel
>
> ++ Ville
>
> ++ Shashank
>
>
> On 22-03-2017 17:35, Jose Abreu wrote:
>> Hi all,
>>
>> This is a RFC series that aims to collect comments regarding the 
>> handling of HDMI 2.0+ video modes and features in the DRM core.
>>
>> Some of the HDMI 2.0 features are already implemented and only affect 
>> kernel drivers (SDCD for example). There are some features, though, 
>> which can, and will, affect userspace.
>>
>> It is clear that userspace can't be broken, so, based on previous 
>> discussions I started implementing a "HDMI 2.0+ knob" which can be set 
>> by userspace to enable HDMI 2.0+ features.
>>
>> For now this only limits the exposing of the video modes defined in 
>> CEA-861-F, but it can be extended adding, for example, YCbCr 4:2:0.
>>
>> Please do not see this as a formal patch as this wasn't even compiled 
>> tested but, please, feel free to comment :)
>>
>> NOTE: The adding of the new video modes timings was originally done by 
>> Shashank Sharma <shashank.sharma at intel.com> so, credit to him. I 
>> modified it a little bit (added the HDMI 2.0+ flag) and I don't know 
>> if I should add his signed-off-by as it was modified.
>>
>> Best regards,
>> Jose Miguel Abreu
>>
>> Cc: Carlos Palminha <palminha at synopsys.com>
>> Cc: dri-devel at lists.freedesktop.org
>>
>> Jose Abreu (5):
>>   drm: Add HDMI 2.0+ features exposing knob
>>   drm: uapi: Add HDMI 2.0 aspect ratio flags and HDMI 2.0+ mode flag
>>   drm: edid: Add HDMI 2.0 CEA video modes
>>   drm: connector: Add hdmi2_allowed flag
>>   drm: Do not expose HDMI 2.0+ modes to userspace/drivers unless asked
>>     to
>>
>>  drivers/gpu/drm/drm_connector.c    |   2 +
>>  drivers/gpu/drm/drm_edid.c         | 258 +++++++++++++++++++++++++++++++++++++
>>  drivers/gpu/drm/drm_ioctl.c        |   5 +
>>  drivers/gpu/drm/drm_probe_helper.c |   9 +-
>>  include/drm/drm_connector.h        |   2 +
>>  include/drm/drm_file.h             |   8 ++
>>  include/drm/drm_modes.h            |  14 ++
>>  include/uapi/drm/drm.h             |   7 +
>>  include/uapi/drm/drm_mode.h        |   9 ++
>>  9 files changed, 313 insertions(+), 1 deletion(-)
>>
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