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

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 103a60b..208a4ec 100644 (file)
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -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;