Revert "drm/i915: Nuke pipe A quirk on i830M"
authorVille Syrjälä <ville.syrjala@linux.intel.com>
Thu, 14 Aug 2014 22:22:06 +0000 (01:22 +0300)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Wed, 3 Sep 2014 09:05:22 +0000 (11:05 +0200)
commit5f080c0f4bd526b36361dd15c4d22f6bbad95af9
treeb4c4f504a8bdde363f90c7edeffc967763aa6a9f
parentb07aaf8849f08b2e4c1ea1a91cae80e0c11c8d2a
Revert "drm/i915: Nuke pipe A quirk on i830M"

830 really does want the pipe A quirk. The planes and ports don't
react to any register writes unless the pipe currently attached
to them is running, so it's impossible to move them to the other
pipe unless both pipes are running.

Also it's documented that the DPLL must be enabled on both pipes
whenever it's needed.

This reverts commit ac6696d3236bd61503f89a1a99680fd7894d5d53.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Tested-by: Thomas Richter <richter@rus.uni-stuttgart.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/intel_display.c