diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp_mst.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 06f4ad8de591..fa969b46245c 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -263,6 +263,12 @@ int intel_dp_mtp_tu_compute_config(struct intel_dp *intel_dp, fxp_q4_to_frac(max_bpp_x16) || fxp_q4_to_frac(bpp_step_x16))); + if (!bpp_step_x16) { + /* Allow using zero step only to indicate single try for a given bpp. */ + drm_WARN_ON(display->drm, min_bpp_x16 != max_bpp_x16); + bpp_step_x16 = 1; + } + if (is_mst) { mst_state = drm_atomic_get_mst_topology_state(state, &intel_dp->mst.mgr); if (IS_ERR(mst_state)) @@ -386,10 +392,6 @@ int intel_dp_mtp_tu_compute_config(struct intel_dp *intel_dp, break; } - - /* Allow using zero step to indicate one try */ - if (!bpp_step_x16) - break; } if (slots < 0) { |