drm/amd/display: Optimize DP_SINK_STATUS_ESI range read on HPD

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DP_SINK_STATUS_ESI range data is not continual, but rather than
getting it in two AUX reads, it's quicker to read more bytes in a
AUX read and then memcpy the required fields (it's only 8 more
bytes to read).

Signed-off-by: Nikola Cornij <nikola.cornij@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>

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Nikola Cornij 2018-05-09 17:07:36 -04:00 • committed by Alex Deucher

parent bf58968647

commit 3c8e4316a0

1 changed files with 13 additions and 9 deletions

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

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