drm/i915: Preserve the DDI_A_4_LANES bit from the bios

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Otherwise the DDI_A_4_LANES bit gets lost and we can't use > 2 lanes
on eDP. This fixes eDP on hsw with > 2 lanes.

Also s/port_reversal/saved_port_bits/ since the current name is
confusing.

Signed-off-by: Stéphane Marchesin <marcheu@chromium.org>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

...

This commit is contained in:

Stéphane Marchesin 2013-07-12 13:54:41 -07:00 • committed by Daniel Vetter

parent 21d8a4756a

commit bcf53de4e6

2 changed files with 7 additions and 5 deletions

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10

drivers/gpu/drm/i915/intel_ddi.c

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2

drivers/gpu/drm/i915/intel_drv.h

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