drm/i915/tv: After disabling the pipe, use wait_for_vblank_off()
Hopefully this is a contributing factor to the spurious TV detection
repoted by Ivan Bulatovic and others.
References:
Bug 16871 - "TV1 connected" with no tv
https://bugzilla.kernel.org/show_bug.cgi?id=16871
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reported-by: Ivan Bulatovic <combuster@gmx.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
index 4a65342..d406672 100644
--- a/drivers/gpu/drm/i915/intel_tv.c
+++ b/drivers/gpu/drm/i915/intel_tv.c
@@ -1164,7 +1164,7 @@
I915_WRITE(pipeconf_reg, pipeconf & ~PIPEACONF_ENABLE);
/* Wait for vblank for the disable to take effect. */
- intel_wait_for_vblank(dev, intel_crtc->pipe);
+ intel_wait_for_vblank_off(dev, intel_crtc->pipe);
/* Filter ctl must be set before TV_WIN_SIZE */
I915_WRITE(TV_FILTER_CTL_1, TV_AUTO_SCALE);