drm/amd/display: Return aux replies directly to DRM

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Currently we still go through DC code that does error checking, retries,
etc. There's no need for that since DRM already does that for us. This
simplifies the code a bit and makes it easier to debug.

This also ensures we correctly tell DRM how many bytes have actually
been read, as we should. This allows DRM to correctly read the EDID on
the Chamelium DP port.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Harry Wentland 2018-05-09 16:26:17 -04:00 • committed by Alex Deucher

parent 899e2aaddb

commit 084b3765ec

3 changed files with 117 additions and 114 deletions

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89

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c

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124

drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c

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22

drivers/gpu/drm/amd/display/dc/inc/dc_link_ddc.h

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