drm/i915/edp: use lane count and link rate from DPCD for eDP

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eDP panels are generally designed to support only a single clock and
lane configuration.

commit 56071a2076
Author: Jani Nikula <jani.nikula@intel.com>
Date:   Tue May 6 14:56:52 2014 +0300

    drm/i915: use lane count and link rate from VBT as minimums for eDP

should have started using the optimal link parameters for eDP
panels. Turns out a certain other OS uses DPCD instead of VBT, which
means trusting VBT on this may not be so reliable after all. Follow
suit.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=81647
Tested-by: Adam Jirasek <libm3l@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79386
Tested-by: Narthana Epa <narthana.epa+freedesktop@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

...

This commit is contained in:

Jani Nikula 2014-09-09 11:25:13 +03:00 • committed by Daniel Vetter

parent f8d8a672f9

commit 344c5bbcb7

1 changed files with 9 additions and 17 deletions

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26

drivers/gpu/drm/i915/intel_dp.c

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