1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c
index 2d6c491a0542..f51a116543f7 100644
--- a/drivers/gpu/drm/drm_dp_helper.c
+++ b/drivers/gpu/drm/drm_dp_helper.c
@@ -154,6 +154,7 @@ u8 drm_dp_link_rate_to_bw_code(int link_rate)
         default:
                 WARN(1, "unknown DP link rate %d, using %x\n", link_rate,
                      DP_LINK_BW_1_62);
+                /* fall through */
         case 162000:
                 return DP_LINK_BW_1_62;
         case 270000:
@@ -171,6 +172,7 @@ int drm_dp_bw_code_to_link_rate(u8 link_bw)
         switch (link_bw) {
         default:
                 WARN(1, "unknown DP link BW code %x, using 162000\n", link_bw);
+                /* fall through */
         case DP_LINK_BW_1_62:
                 return 162000;
         case DP_LINK_BW_2_7:
@@ -552,6 +554,7 @@ int drm_dp_downstream_max_bpc(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
                 case DP_DS_16BPC:
                         return 16;
                 }
+                /* fall through */
         default:
                 return 0;
         }