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 <chris@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_i2c.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c
index 81de23098be7..6bc4c064df0b 100644
--- a/drivers/gpu/drm/i915/intel_i2c.c
+++ b/drivers/gpu/drm/i915/intel_i2c.c
@@ -298,15 +298,16 @@ gmbus_wait_idle(struct drm_i915_private *dev_priv)
{
int ret;
-#define C ((I915_READ_NOTRACE(GMBUS2) & GMBUS_ACTIVE) == 0)
-
if (!HAS_GMBUS_IRQ(dev_priv))
- return wait_for(C, 10);
+ return intel_wait_for_register(dev_priv,
+ GMBUS2, GMBUS_ACTIVE, 0,
+ 10);
/* Important: The hw handles only the first bit, so set only one! */
I915_WRITE(GMBUS4, GMBUS_IDLE_EN);
- ret = wait_event_timeout(dev_priv->gmbus_wait_queue, C,
+ ret = wait_event_timeout(dev_priv->gmbus_wait_queue,
+ (I915_READ_NOTRACE(GMBUS2) & GMBUS_ACTIVE) == 0,
msecs_to_jiffies_timeout(10));
I915_WRITE(GMBUS4, 0);
@@ -315,7 +316,6 @@ gmbus_wait_idle(struct drm_i915_private *dev_priv)
return 0;
else
return -ETIMEDOUT;
-#undef C
}
static int
--
2.8.1
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