drm/radeon/dp: use usleep_range rather than udelay
Based on common dp code proposed by Thierry Reding.
Signed-off-by:
Alex Deucher <alexander.deucher@amd.com>
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Based on common dp code proposed by Thierry Reding.
Signed-off-by:
Alex Deucher <alexander.deucher@amd.com>