From: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx> Make sure we write to IPS before we actually wait. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx> --- drivers/gpu/drm/i915/intel_display.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index fc55570..78ff5ed 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3386,6 +3386,7 @@ static void hsw_disable_ips(struct intel_crtc *crtc) assert_plane_enabled(dev_priv, crtc->plane); I915_WRITE(IPS_CTL, 0); + POSTING_READ(IPS_CTL); /* We need to wait for a vblank before we can disable the plane. */ intel_wait_for_vblank(dev, crtc->pipe); -- 1.8.3.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
