diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index c7f8fc654857..56c36c9ef173 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -1483,6 +1483,7 @@ intel_dp_compute_link_config(struct intel_encoder *encoder, &pipe_config->hw.adjusted_mode; struct intel_dp *intel_dp = enc_to_intel_dp(encoder); struct link_config_limits limits; + bool joiner_needs_dsc = false; int ret; limits.min_rate = intel_dp_common_rate(intel_dp, 0); @@ -1519,18 +1520,22 @@ intel_dp_compute_link_config(struct intel_encoder *encoder, pipe_config->bigjoiner_pipes = GENMASK(crtc->pipe + 1, crtc->pipe); /* + * Pipe joiner needs compression up to display 12 due to bandwidth + * limitation. DG2 onwards pipe joiner can be enabled without + * compression. + */ + joiner_needs_dsc = DISPLAY_VER(i915) < 13 && pipe_config->bigjoiner_pipes; + + /* * Optimize for slow and wide for everything, because there are some * eDP 1.3 and 1.4 panels don't work well with fast and narrow. */ ret = intel_dp_compute_link_config_wide(intel_dp, pipe_config, &limits); - /* - * Pipe joiner needs compression upto display12 due to BW limitation. DG2 - * onwards pipe joiner can be enabled without compression. - */ - drm_dbg_kms(&i915->drm, "Force DSC en = %d\n", intel_dp->force_dsc_en); - if (ret || intel_dp->force_dsc_en || - (DISPLAY_VER(i915) < 13 && pipe_config->bigjoiner_pipes)) { + if (ret || joiner_needs_dsc || intel_dp->force_dsc_en) { + drm_dbg_kms(&i915->drm, "Try DSC (fallback=%s, joiner=%s, force=%s)\n", + str_yes_no(ret), str_yes_no(joiner_needs_dsc), + str_yes_no(intel_dp->force_dsc_en)); ret = intel_dp_dsc_compute_config(intel_dp, pipe_config, conn_state, &limits); if (ret < 0) |