By using the out-of-line intel_wait_for_register() not only do we can
efficiency from using the hybrid wait_for() contained within, but we
avoid code bloat from the numerous inlined loops, in total (all patches):

   text    data     bss     dec     hex filename
1078551    4557     416 1083524  108884 drivers/gpu/drm/i915/i915.ko
1070775    4557     416 1075748  106a24 drivers/gpu/drm/i915/i915.ko

Signed-off-by: Chris Wilson <[email protected]>
Reviewed-by: Tvrtko Ursulin <[email protected]>
---
 drivers/gpu/drm/i915/intel_dsi_pll.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dsi_pll.c 
b/drivers/gpu/drm/i915/intel_dsi_pll.c
index 1765e6e18f2c..cbcc7114c799 100644
--- a/drivers/gpu/drm/i915/intel_dsi_pll.c
+++ b/drivers/gpu/drm/i915/intel_dsi_pll.c
@@ -234,8 +234,11 @@ static void bxt_disable_dsi_pll(struct intel_encoder 
*encoder)
         * PLL lock should deassert within 200us.
         * Wait up to 1ms before timing out.
         */
-       if (wait_for((I915_READ(BXT_DSI_PLL_ENABLE)
-                                       & BXT_DSI_PLL_LOCKED) == 0, 1))
+       if (intel_wait_for_register(dev_priv,
+                                   BXT_DSI_PLL_ENABLE,
+                                   BXT_DSI_PLL_LOCKED,
+                                   0,
+                                   1))
                DRM_ERROR("Timeout waiting for PLL lock deassertion\n");
 }
 
-- 
2.8.1

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