From: Ville Syrjälä <[email protected]>
Signed-off-by: Ville Syrjälä <[email protected]>
---
drivers/gpu/drm/i915/intel_display.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_display.c
b/drivers/gpu/drm/i915/intel_display.c
index 76a77f7..a0d0202 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -1817,6 +1817,8 @@ static void intel_enable_primary_plane(struct
drm_i915_private *dev_priv,
/* If the pipe isn't enabled, we can't pump pixels and may hang */
assert_pipe_enabled(dev_priv, pipe);
+ WARN(!intel_crtc->primary_disabled, "Primary plane already enabled\n");
+
intel_crtc->primary_disabled = false;
reg = DSPCNTR(plane);
@@ -1845,6 +1847,8 @@ static void intel_disable_primary_plane(struct
drm_i915_private *dev_priv,
int reg;
u32 val;
+ WARN(intel_crtc->primary_disabled, "Primary plane already disabled\n");
+
intel_crtc->primary_disabled = true;
reg = DSPCNTR(plane);
--
1.8.1.5
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