Hi,
I need to use four video outputs at once on a custom board based on DRA74x. Configuration will be 3xLCD (over FPDlink) + 1xHDMI, using Linux as the OS.
From what I can see from the TRM, the processor has the required capability, but I cannot find informations on actual implementations of such a setup.
1) Was such support ever tested? If yes, on what version of GLSDK/PSLA?
2) Is there any constrain in term of resolution/frequency/synchronization between displays?
My main concern is related to PLLs generating required clocks (as 2 PLLs have to be shared among 3 video outputs): if all three LCD outputs are enabled, LCD2 does not work correctly (e.g. when kmscube is launched on LCD3 and then killed, line artifacts are seen on LCD2).
Thanks
Best regards,
Francesco Valla