drm/radeon: retry dcpd fetch
authorAlex Deucher <alexander.deucher@amd.com>
Mon, 18 May 2015 14:38:25 +0000 (10:38 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Thu, 21 May 2015 16:43:21 +0000 (12:43 -0400)
commit0f28d1281b6c54cc98746ae61e44e7f540758ed4
tree834a47764596a0b7b1fb840926e88184c3e1c8cd
parent755c814a7d826257d5488cfaa801ec19377c472a
drm/radeon: retry dcpd fetch

Retry the dpcd fetch several times.  Some eDP panels
fail several times before the fetch is successful.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=73530

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
drivers/gpu/drm/radeon/atombios_dp.c