diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 5fa1476cbfc6..d775f954c1b6 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -970,8 +970,14 @@ static void assert_planes_disabled(struct drm_i915_private *dev_priv, int cur_pipe; /* Planes are fixed to pipes on ILK+ */ - if (HAS_PCH_SPLIT(dev_priv->dev)) + if (HAS_PCH_SPLIT(dev_priv->dev)) { + reg = DSPCNTR(pipe); + val = I915_READ(reg); + WARN((val & DISPLAY_PLANE_ENABLE), + "plane %c assertion failure, should be disabled but not\n", + plane_name(pipe)); return; + } /* Need to check both planes against the pipe */ for (i = 0; i < 2; i++) { |