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authorDaniel Vetter <daniel.vetter@ffwll.ch>2012-06-05 10:07:11 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2012-06-12 19:28:40 +0200
commit0b9f43a0ee7e89013a3d913ce556715fd8acb674 (patch)
tree30a1beb75080a240414594175eb6a8aef74ed17e /drivers/gpu/drm/i915/intel_lvds.c
parent24ded204429fa0f5501d37c63ee35c555c0b75ee (diff)
drm/i915: allow pipe A for lvds on gen4
Given the havoc the missing backlight pipe select code might have caused, let's try to re-enabled pipe A support for lvds on gen4 hw. Just to see what all blows up ... Note though that commit 4add75c43f39573edc884d46b7c2b7414f01171a Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Sat Dec 4 17:49:46 2010 +0000 drm/i915: Allow LVDS to be on pipe A for Ironlake+ claims that this caused tons of spurious wakeups somehow. More details can be found in the old revert: commit 12e8ba25ef52f19e7a42e61aecb3c1fef83b2a82 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Tue Sep 7 23:39:28 2010 +0100 Revert "drm/i915: Allow LVDS on pipe A on gen4+" Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=16307 Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_lvds.c')
-rw-r--r--drivers/gpu/drm/i915/intel_lvds.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 492db7740de2..ab4d64792616 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -968,6 +968,8 @@ bool intel_lvds_init(struct drm_device *dev)
intel_encoder->clone_mask = (1 << INTEL_LVDS_CLONE_BIT);
if (HAS_PCH_SPLIT(dev))
intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
+ else if (IS_GEN4(dev))
+ intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
else
intel_encoder->crtc_mask = (1 << 1);