From: Alex Deucher <alexander.deucher@amd.com>
Date: Mon, 18 May 2015 22:15:07 +0000 (-0400)
Subject: drm/amdgpu: retry dcpd fetch
X-Git-Tag: omap-for-v4.2/fixes-rc1^2~17^2~25^2~33
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=67ed0092328dbc5f88759be9a32a95b151583e1b;p=pandora-kernel.git

drm/amdgpu: 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

Ported from radeon.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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