From: Chris Wilson Date: Sun, 21 Jul 2013 15:00:03 +0000 (+0100) Subject: drm/i915: Retry DP aux_ch communications with a different clock after failure X-Git-Tag: v3.12-rc1~136^2~129^2~3 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bc86625a4ff7574d4d4dba79723457711eb784e0;p=pandora-kernel.git drm/i915: Retry DP aux_ch communications with a different clock after failure The w/a db makes the recommendation to both use a non-default value for the initial clock and then to retry with an alternative clock for Haswell with the Lakeport PCH. "On LPT:H, use a divider value of 63 decimal (03Fh). If there is a failure, retry at least three times with 63, then retry at least three times with 72 decimal (048h)." Signed-off-by: Chris Wilson Reviewed-by: Jani Nikula Signed-off-by: Daniel Vetter --- Reading git-diff-tree failed