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

Sharma, Shashank shashank.sharma at intel.com
Thu Mar 23 10:56:52 UTC 2017


I realized it was too early to search that in dri-devel last night, I 
guess it takes some time to sync.

Now I can see them all :)


On 3/23/2017 12:37 PM, Jose Abreu wrote:
> 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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