drm/i915: warn about missing ->get_buf_trans initialization

Make sure each DDI platform has sane ->get_buf_trans initialized.

Suggested-by: Matt Roper <matthew.d.roper@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220503082134.4128355-1-jani.nikula@intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c b/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c
index 94e6466..85f58dd 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c
@@ -1673,7 +1673,9 @@ void intel_ddi_buf_trans_init(struct intel_encoder *encoder)
                encoder->get_buf_trans = skl_get_buf_trans;
        } else if (IS_BROADWELL(i915)) {
                encoder->get_buf_trans = bdw_get_buf_trans;
-       } else {
+       } else if (IS_HASWELL(i915)) {
                encoder->get_buf_trans = hsw_get_buf_trans;
+       } else {
+               MISSING_CASE(INTEL_INFO(i915)->platform);
        }
 }