Multiple Video screens using Rockchip RK3288 kernel

[Vishal]

I am currently working on a Development Board based on RK3288. We are using Rockchip kernel as mentioned here

https://github.com/rockchip-linux/kernel

This uses libdrm (DRI) for its rendering purposes. But it has limitations. Only one CRTC is connected out of 2. It provides 8 planes, out of which only 4 are available for the working CRTC, out of which user available OVERLAY planes are only 2, and out of which only 1 Plane supports NV12 rendering.

I need to show 2-4 videos simultaneously, can anyone help me here on how to procure more planes, particularly NV12 compatible OVERLAY type, that can be connected to the working CRTC?

[chwe]

keep in mind, technical support sub-forums are only for boards we actually support --> moved to p2p tech support.

 

@JMCCs work might  be a starter for you...