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

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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2010-09-11 21:37:48 +01:00
parent 5eddb70ba2
commit fe255d0028
1 changed files with 2 additions and 3 deletions
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5
drivers/gpu/drm/i915/intel_dp.c
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@ -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;