drm/i915: BUG() on unexpected HDMI register

This should never happen, but the silent "return" makes me wonder
every time I try to debug InfoFrame bugs, so promote this to BUG() to
make sure people will complain if we ever break this.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 229897ff75da..f9fb47cd1779 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -377,6 +377,7 @@ static void g4x_set_infoframes(struct drm_encoder *encoder,
                 port = VIDEO_DIP_PORT_C;
                 break;
         default:
+                BUG();
                 return;
         }
 
@@ -435,6 +436,7 @@ static void ibx_set_infoframes(struct drm_encoder *encoder,
                 port = VIDEO_DIP_PORT_D;
                 break;
         default:
+                BUG();
                 return;
         }