Add a WARN_ON for a disabled pipe in pipe_mask at
intel_get_crtc_for_pipe() function.
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Signed-off-by: Anshuman Gupta <anshuman.gupta@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_display_types.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 33ba93863488..ca8d1e17814e 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -1426,6 +1426,8 @@ vlv_pipe_to_channel(enum pipe pipe)
static inline struct intel_crtc *
intel_get_crtc_for_pipe(struct drm_i915_private *dev_priv, enum pipe pipe)
{
+ /* pipe_to_crtc_mapping may have hole on any of 3 display pipe system */
+ WARN_ON(!(INTEL_INFO(dev_priv)->pipe_mask & BIT(pipe)));
return dev_priv->pipe_to_crtc_mapping[pipe];
}
--
2.24.0
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