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Commit 307e4498 authored Mar 23, 2016 by Maarten Lankhorst

drm/i915: Remove vblank wait from hsw_enable_ips, v2.



intel_post_plane_update did an extra vblank wait that's no longer needed when enabling ips.

Changes since v1:
- Add comment explaining why vblank wait is performed. (Paulo)

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/56F29B28.5070804@linux.intel.com

parent 321d178e

drivers/gpu/drm/i915/intel_display.c

+5 −2

Original line number	Diff line number	Diff line
		@@ -4412,8 +4412,11 @@ void hsw_enable_ips(struct intel_crtc *crtc)
		if (!crtc->config->ips_enabled)
		return;

		/* We can only enable IPS after we enable a plane and wait for a vblank */
		intel_wait_for_vblank(dev, crtc->pipe);
		/*
		* We can only enable IPS after we enable a plane and wait for a vblank
		* This function is called from post_plane_update, which is run after
		* a vblank wait.
		*/

		assert_plane_enabled(dev_priv, crtc->plane);
		if (IS_BROADWELL(dev)) {