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 | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_dsi_pll.c 
b/drivers/gpu/drm/i915/intel_dsi_pll.c
index cbcc7114c799..4f9930bc89e5 100644
--- a/drivers/gpu/drm/i915/intel_dsi_pll.c
+++ b/drivers/gpu/drm/i915/intel_dsi_pll.c
@@ -489,7 +489,11 @@ static void bxt_enable_dsi_pll(struct intel_encoder 
*encoder,
        I915_WRITE(BXT_DSI_PLL_ENABLE, val);
 
        /* Timeout and fail if PLL not locked */
-       if (wait_for(I915_READ(BXT_DSI_PLL_ENABLE) & BXT_DSI_PLL_LOCKED, 1)) {
+       if (intel_wait_for_register(dev_priv,
+                                   BXT_DSI_PLL_ENABLE,
+                                   BXT_DSI_PLL_LOCKED,
+                                   BXT_DSI_PLL_LOCKED,
+                                   1)) {
                DRM_ERROR("Timed out waiting for DSI PLL to lock\n");
                return;
        }
-- 
2.8.1

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