Commit fe255d00 authored by Chris Wilson's avatar Chris Wilson
Browse files

drm/i915/dp: Convert a udelay(17000) to a sleep during link-off 



Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
parent 5eddb70b

drivers/gpu/drm/i915/intel_dp.c

+2 −3
Original line number Diff line number Diff line
@@ -1366,14 +1366,13 @@ intel_dp_link_down(struct intel_dp *intel_dp) 
	if (HAS_PCH_CPT(dev) && !IS_eDP(intel_dp)) {

		DP &= ~DP_LINK_TRAIN_MASK_CPT;

		I915_WRITE(intel_dp->output_reg, DP | DP_LINK_TRAIN_PAT_IDLE_CPT);

		POSTING_READ(intel_dp->output_reg);

	} else {

		DP &= ~DP_LINK_TRAIN_MASK;

		I915_WRITE(intel_dp->output_reg, DP | DP_LINK_TRAIN_PAT_IDLE);

		POSTING_READ(intel_dp->output_reg);

	}

	POSTING_READ(intel_dp->output_reg);



	udelay(17000);

	msleep(17);



	if (IS_eDP(intel_dp))

		DP |= DP_LINK_TRAIN_OFF;