[FAQ] AM62P: Enabling BT.656 mode in DSS

Note: AM62P only supports BT.656 with embedded syncs, and not with discrete syncs.

Please apply the following patch series for BT.656 progressive mode (may need to apply manually on different SDK version):
AM62P_BT656_patch_series.zip

Please take a look at the following TRM section specifying which data lines are utilized in BT.656 mode.


Note: In progressive BT.656/BT.1120 mode the maximum output resolution will be limited, as it requires two pixel clock cycles to send out one pixel.

When facing issue in using above patch, please create E2E ticket with output logs of the following commands:

kmsprint #Note the connector ID from here
modetest -M tidss -s <Connector ID>:720x480@NV12 -v
rwmem 0x3020b000+0x200
modetest -M tidss

For hints on enabling BT.656 interlaced, refer to patches towards the end of the following thread (patches applicable on top of BT.656 progressive patches in above post):
RE: AM62A7-Q1: TIDSS: BT656 with interlaced mode