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  1. 06 May, 2014 7 commits
  3. 01 May, 2014 5 commits
  5. 29 Apr, 2014 5 commits
  7. 27 Apr, 2014 3 commits
  9. 25 Apr, 2014 5 commits
  11. 24 Apr, 2014 4 commits
  13. 23 Apr, 2014 2 commits
    • Paulo Zanoni's avatar
      drm/i915: get power domain in case the BIOS enabled eDP VDD · 63635217
      Paulo Zanoni authored 
      If I unplug the eDP monitor, the BIOS of my machine will enable the
VDD bit, then when the driver loads it will think VDD is enabled. It
will detect that the eDP is not enabled and return false from
intel_edp_init_connector. This will trigger a call to
edp_panel_vdd_off_sync(), which trigger a WARN saying that the
refcount of the power domain is less than zero.

The problem happens because the driver gets a refcount whenever it
enables the VDD bit, and puts the refcount whenever it disables the
VDD bit. But on this case, the BIOS enabled VDD, so all we do is to
call put() without calling get() first, so the code added is there to
make sure we always have the get() in case the BIOS enabled the bit.

This regression was introduced in
commit e9cb81a2
Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date:   Thu Nov 21 13:47:23 2013 -0200

    drm/i915: get a runtime PM reference when the panel VDD is on

v2: - Rebase

Tested-by: Chris Wilson <chris@chris-wilson.co.uk> (v1)
Reviewed-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@vger.kernel.org (v3.13+)
Signed-off-by: default avatarPaulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
      63635217
    • Daniel Vetter's avatar
      drm/i915: Don't check gmch state on inherited configs · 9953599b
      Daniel Vetter authored 
      ... our current modeset code isn't good enough yet to handle this. The
scenario is:

1. BIOS sets up a cloned config with lvds+external screen on the same
pipe, e.g. pipe B.

2. We read out that state for pipe B and assign the gmch_pfit state to
it.

3. The initial modeset switches the lvds to pipe A but due to lack of
atomic modeset we don't recompute the config of pipe B.

-> both pipes now claim (in the sw pipe config structure) to use the
gmch_pfit, which just won't work.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=74081Tested-by: default avatarmax <manikulin@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
      9953599b
  15. 22 Apr, 2014 9 commits
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