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TDA4VH-Q1: DSS using both DSI interfaces

Thomas
Prodigy 90 points

Part Number: TDA4VH-Q1

Tool/software:

Hi,

I'm building an application where I'd need both DSI outputs (AP25 DSI0_TXCLKP, AP26 DSI0_TXCLKN, AU27 DSI0_TXN0 - AN23 DSI0_TXP3 & AP28 DSI1_TXCLKP, AP29 DSI1_TXCLKN, AT29 DSI1_TXN0 - AU29 DSI1_TXP3) to provide a signal to feed two DS90UB941 serializers.

The demo application in pdk_j784s4_09_02_00_30/packages/ti/drv/dss/examples/dss_display_test routes the DSI to CSL_DSS_VP_ID_3 / DSS_DCTRL_NODE_VP3 / DSS_DCTRL_NODE_DSI_DPI2.
The other possible outputs are e.g. DSS_DCTRL_NODE_DPI_DPI0 / DSS_DCTRL_NODE_DPI_DPI1 & DP (not needed)

The questions are now: How to address the second DSI unit? which VP to use for that and how should it work since only VP3 is allowed to be connected to DSS_DCTRL_NODE_DSI_DPI2?

Thanks for clarification!
Thomas