VC4 DRM

[Sergey Suloev]

Eric, thanks for answer,

I am in doubt the type of my panel. It is Himax HX8379A-based panel.
Is there a deterministic way to find  out which type of panel  I have, 
video or command ?


Sergey


On 12/17/18 9:12 PM, Eric Anholt wrote:
> Sergey Suloev <ssuloev at orpaltech.com> writes:
>
>> Eric, Noralf,
>>
>> could either of you answer a question about Vc4 DRM, please ?
>>
>> I am trying to connect MIPI DSI display to VC4 but it isn't showing
>> anything. I have noticed
>> that the DSI host  transfer() method vc4_dsi_host_transfer gets called
>> for the commands that
>> I am sending from my panel driver, but not for pixel data.
>>
>> My question: are pixel data normally transferred the same method within
>> vc4_dsi driver
>> or any "behind the scene" way ?
> The transfer function isn't used for pixel data in video mode.  The vc4
> panel has never been used for command mode panels, so if you have one of
> those it will probably be extra work.