Leave behind some debugging clues in case some panels don't work
properly.

Signed-off-by: Jani Nikula <jani.nik...@intel.com>
---
 drivers/gpu/drm/i915/intel_bios.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_bios.c 
b/drivers/gpu/drm/i915/intel_bios.c
index c6e69e4cfa83..83667e8cdd6b 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -996,6 +996,10 @@ parse_mipi_sequence(struct drm_i915_private *dev_priv,
                        goto err;
                }
 
+               /* Log about presence of sequences we won't run. */
+               if (seq_id == MIPI_SEQ_TEAR_ON || seq_id == MIPI_SEQ_TEAR_OFF)
+                       DRM_DEBUG_KMS("Unsupported sequence %u\n", seq_id);
+
                dev_priv->vbt.dsi.sequence[seq_id] = data + index;
 
                if (sequence->version >= 3)
-- 
2.1.4

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