TDA4VM: Is there a virtual display and write-back in the linux 8.4 SDK?

I see that some code commits are recorded in previous versions, but recent versions do not see the code for WB. 

Yes, Linux no longer supports WB driver.

Regards,

Brijesh

Why not supports WB driver? Have some questions？

it has been removed/descoped from the SDK and no longer supported. 

Hi

The serializer output on our hardware is connected to the CSI-TX port.

In this case, how to develop a full display function in this case?

Need to support GPU development and UI development.

The R5 core control CSI-TX output shows that it has been ok.

hi xie jc,

But in this case, can you also use DSS M2M path from R5F? This is supported on R5F, but not supported on Linux/A72. 

Regards,

Brijesh

Hi Brijesh,

If using DSS M2M path from R5F, how to achieve GPU layers and UI  layers overlay display？

Can you help to elaborate a little more?

Hi xie jc,

ok, this will not be possible in the current implementation of DSS M2M path. But then only solution i have for you is you have to port this driver from previous release to later release. 

Regards,

Brijesh   

Hi Brijesh，

Can you help see if this display scheme is ok?

QT/AVM --> Weston --> DRM --> DSS --> WB--> DSS --> CSI-TX -->DPHY-TX--> Serializer 

If this solution is feasible, what references or reference links are available on TI's side?

Hi xie jc,

But there is no WB path on Linux, so it will not work.

Regards,

Brijesh