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Commit 93c9c19b authored by Jesse Barnes's avatar Jesse Barnes Committed by Daniel Vetter
Browse files

drm/i915: remove unexplained vblank wait in the DP off code 



I don't think this is necessary; at least it doesn't appear to be on my
BYT.  Dropping it speeds up our shutdown code a little, in some cases
resulting in faster init times.

Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 444c9a08

drivers/gpu/drm/i915/intel_dp.c

+0 −3
Original line number Original line Diff line number Diff line
@@ -2779,9 +2779,6 @@ intel_dp_link_down(struct intel_dp *intel_dp) 
	}

	}

	POSTING_READ(intel_dp->output_reg);

	POSTING_READ(intel_dp->output_reg);





	/* We don't really know why we're doing this */

	intel_wait_for_vblank(dev, intel_crtc->pipe);



	if (HAS_PCH_IBX(dev) &&

	if (HAS_PCH_IBX(dev) &&

	    I915_READ(intel_dp->output_reg) & DP_PIPEB_SELECT) {

	    I915_READ(intel_dp->output_reg) & DP_PIPEB_SELECT) {

		struct drm_crtc *crtc = intel_dig_port->base.base.crtc;

		struct drm_crtc *crtc = intel_dig_port->base.base.crtc;