[PATCH] drm/i915: tune down unknown unclaime write hsw debug message

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This could very well be caused by dirt left behind by the BIOS, so
tune it down to the debug level.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=58897
Tested-by: shui yangwei <yangweix.shui at intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 drivers/gpu/drm/i915/i915_drv.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 530db83..08dbcc3 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1258,7 +1258,7 @@ void i915_write##x(struct drm_i915_private *dev_priv, u32 reg, u##x val) { \
 	if (IS_GEN5(dev_priv->dev)) \
 		ilk_dummy_write(dev_priv); \
 	if (IS_HASWELL(dev_priv->dev) && (I915_READ_NOTRACE(GEN7_ERR_INT) & ERR_INT_MMIO_UNCLAIMED)) { \
-		DRM_ERROR("Unknown unclaimed register before writing to %x\n", reg); \
+		DRM_DEBUG("Unknown unclaimed register before writing to %x\n", reg); \
 		I915_WRITE_NOTRACE(GEN7_ERR_INT, ERR_INT_MMIO_UNCLAIMED); \
 	} \
 	if (IS_VALLEYVIEW(dev_priv->dev) && IS_DISPLAYREG(reg)) { \
-- 
1.7.10.4



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