diff options
| author |   Chris Wilson <chris@chris-wilson.co.uk> | 2010-09-12 18:25:19 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2010-09-12 21:20:41 +0100 |
| commit | 897493504addc5609f04a2c4f73c37ab972c29b2 (patch) | |
| tree | 49beaa53ed2964057aa620adc4034d651104d035 /drivers/gpu | |
| parent | drm/i915: don't enable self-refresh on Ironlake (diff) | |
| download | linux-dev-897493504addc5609f04a2c4f73c37ab972c29b2.tar.xz linux-dev-897493504addc5609f04a2c4f73c37ab972c29b2.zip | |
drm/i915: Ensure that the crtcinfo is populated during mode_fixup()
This should fix the mysterious mode setting failures reported during
boot up and after resume, generally for i8xx class machines.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=16478
Reported-and-tested-by: Xavier Chantry <chantry.xavier@gmail.com>
Buzilla: https://bugs.freedesktop.org/show_bug.cgi?id=29413
Tested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 19daead5b525..b5bf51a4502d 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2463,11 +2463,19 @@ static bool intel_crtc_mode_fixup(struct drm_crtc *crtc, struct drm_display_mode *adjusted_mode) { struct drm_device *dev = crtc->dev; + if (HAS_PCH_SPLIT(dev)) { /* FDI link clock is fixed at 2.7G */ if (mode->clock * 3 > IRONLAKE_FDI_FREQ * 4) return false; } + + /* XXX some encoders set the crtcinfo, others don't. + * Obviously we need some form of conflict resolution here... + */ + if (adjusted_mode->crtc_htotal == 0) + drm_mode_set_crtcinfo(adjusted_mode, 0); + return true; } |