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TDA4VE-Q1: how to modify DP TX link bandwidth and lane count

Xingyu Zhu
Expert 4265 points
Part Number: TDA4VE-Q1

Tool/software:

Hi expert,

Our customer would like to know how to modify DP TX link bandwidth (5.4G, 2.7G,1.62G) and lane count (4 lane, 2 lane, 1 lane). In the interface code, we only found below config. Thanks

Best Regards,

Xingyu Zhu

  • 0
    TI__Guru**** 475205 points

    Hi Xingyu,

    I think this fixed to 2.7G and 2 lanes in the driver code ie Dss_dctrlDrvInitDPTX API in packages\ti\drv\dss\src\drv\dctrl\dss_dctrlExtended.c. I think the number of lanes are fixed, because it is shared with the other modules, like PCIe. But lane speed should be possible to change, but we have not really validated it. 

    Regards,

    Brijesh