drm/amd/display: Partition DPCD address space and break up transactions

[WHY]
SCR for DP 2.0 spec says that multiple LTTPRs must not be accessed in a
single AUX transaction.
There may be other places in future where breaking up AUX accesses is
necessary.

[HOW]
Partition the entire DPCD address space into blocks. When an incoming AUX
request spans multiple blocks, break up the request into multiple requests.

Signed-off-by: Wesley Chalmers <[email protected]>
Reviewed-by: Jun Lei <[email protected]>
Acked-by: Anson Jacob <[email protected]>
Tested-by: Daniel Wheeler <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

0 files changed, 0 insertions, 0 deletions