diff options
author | Chris Wilson <chris@chris-wilson.co.uk> | 2013-07-21 16:00:03 +0100 |
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committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-07-26 19:44:53 +0200 |
commit | bc86625a4ff7574d4d4dba79723457711eb784e0 (patch) | |
tree | f1a0b96ba0a111ddaf5fd95e42322c0e31f53928 /block/blk-ioc.c | |
parent | b8f102e8bf71cacf33326360fdf9dcfd1a63925b (diff) |
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 <chris@chris-wilson.co.uk>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'block/blk-ioc.c')
0 files changed, 0 insertions, 0 deletions