On Wed, 2017-02-15 at 18:19 -0800, Steve Longerbeam wrote:

The previous API and negotiation of mbus codes and pixel formats
was broken, and has been completely redone.

The negotiation of media bus codes should be as follows:

CSI:

sink pad     direct src pad      IDMAC src pad
--------     ----------------    -------------
RGB (any)        IPU RGB           RGB (any)
YUV (any)        IPU YUV           YUV (any)
Bayer              N/A             must be same bayer code as sink

The IDMAC src pad should also use the internal 32-bit RGB / YUV format,
except if bayer/raw mode is selected, in which case the attached capture
video device should only allow a single mode corresponding to the output
pad media bus format.

regards
Philipp

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