Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit f7708f78 authored by Paulo Zanoni's avatar Paulo Zanoni Committed by Daniel Vetter
Browse files

drm/i915: don't touch the PF regs if the power well is down 



This solves some "unclaimed register" messages when booting the
machine with eDP attached.

V2: Rebase and add the comment requested by Daniel.

Signed-off-by: default avatarPaulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 15d199ea

drivers/gpu/drm/i915/intel_display.c

+7 −3
Original line number Diff line number Diff line
@@ -3599,9 +3599,13 @@ static void haswell_crtc_disable(struct drm_crtc *crtc) 


	intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder);



	/* Disable PF */

	/* XXX: Once we have proper panel fitter state tracking implemented with

	 * hardware state read/check support we should switch to only disable

	 * the panel fitter when we know it's used. */

	if (intel_using_power_well(dev)) {

		I915_WRITE(PF_CTL(pipe), 0);

		I915_WRITE(PF_WIN_SZ(pipe), 0);

	}



	intel_ddi_disable_pipe_clock(intel_crtc);