diff options
| -rw-r--r-- | drivers/gpu/drm/nouveau/dispnv50/disp.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c index 93665aecce57..9ac47fe519f8 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c @@ -798,7 +798,14 @@ nv50_msto_atomic_check(struct drm_encoder *encoder, if (!state->duplicated) { const int clock = crtc_state->adjusted_mode.clock; - asyh->or.bpc = connector->display_info.bpc; + /* + * XXX: Since we don't use HDR in userspace quite yet, limit + * the bpc to 8 to save bandwidth on the topology. In the + * future, we'll want to properly fix this by dynamically + * selecting the highest possible bpc that would fit in the + * topology + */ + asyh->or.bpc = min(connector->display_info.bpc, 8U); asyh->dp.pbn = drm_dp_calc_pbn_mode(clock, asyh->or.bpc * 3); } |