[Intel-gfx] [PATCH 2/6] drm/i915: Fix ILK reset wait

[ville.syrjala at linux.intel.com]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

We should be waiting for the reset bit to clear, not remain set.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_uncore.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 0e333f2..d79db88 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -1000,7 +1000,8 @@ static int ironlake_do_reset(struct drm_device *dev)
 	gdrst &= ~GRDOM_MASK;
 	I915_WRITE(MCHBAR_MIRROR_BASE + ILK_GDSR,
 		   gdrst | GRDOM_RENDER | GRDOM_RESET_ENABLE);
-	ret = wait_for(I915_READ(MCHBAR_MIRROR_BASE + ILK_GDSR) & 0x1, 500);
+	ret = wait_for((I915_READ(MCHBAR_MIRROR_BASE + ILK_GDSR) &
+			GRDOM_RESET_ENABLE) == 0, 500);
 	if (ret)
 		return ret;
 
@@ -1008,7 +1009,8 @@ static int ironlake_do_reset(struct drm_device *dev)
 	gdrst &= ~GRDOM_MASK;
 	I915_WRITE(MCHBAR_MIRROR_BASE + ILK_GDSR,
 		   gdrst | GRDOM_MEDIA | GRDOM_RESET_ENABLE);
-	return wait_for(I915_READ(MCHBAR_MIRROR_BASE + ILK_GDSR) & 0x1, 500);
+	return wait_for((I915_READ(MCHBAR_MIRROR_BASE + ILK_GDSR) &
+			 GRDOM_RESET_ENABLE) == 0, 500);
 }
 
 static int gen6_do_reset(struct drm_device *dev)
-- 
1.8.5.5