Commit 61da5fab authored 13 years ago by Jesse Barnes Committed by Keith Packard 13 years ago

drm/i915/dp: retry link status read 3 times on failure


Especially after a hotplug or power status change, the sink may not
reply immediately to a link status query.  So retry 3 times per the spec
to really make sure nothing is there.

See section 9.1 of the 1.1a DisplayPort spec.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>

parent fe0d4220

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