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.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index 9bbc1f4276cd..448d6dcc1529 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -174,7 +174,10 @@ static ssize_t intel_dsi_host_transfer(struct 
mipi_dsi_host *host,
                I915_WRITE(MIPI_INTR_STAT(port), GEN_READ_DATA_AVAIL);
        }
 
-       if (wait_for((I915_READ(MIPI_GEN_FIFO_STAT(port)) & ctrl_mask) == 0, 
50)) {
+       if (intel_wait_for_register(dev_priv,
+                                   MIPI_GEN_FIFO_STAT(port),
+                                   ctrl_mask, 0,
+                                   50)) {
                DRM_ERROR("Timeout waiting for HS/LP CTRL FIFO !full\n");
        }
 
-- 
2.8.1

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