diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp_mst.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp_mst.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 3661cd19ce48..e2eb46337369 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -542,7 +542,7 @@ static void intel_mst_enable_dp(struct intel_atomic_state *state, struct intel_digital_port *dig_port = intel_mst->primary; struct intel_dp *intel_dp = &dig_port->dp; struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); - u32 val; + enum transcoder trans = pipe_config->cpu_transcoder; drm_WARN_ON(&dev_priv->drm, pipe_config->has_pch_encoder); @@ -550,12 +550,8 @@ static void intel_mst_enable_dp(struct intel_atomic_state *state, intel_ddi_enable_transcoder_func(encoder, pipe_config); - val = intel_de_read(dev_priv, - TRANS_DDI_FUNC_CTL(pipe_config->cpu_transcoder)); - val |= TRANS_DDI_DP_VC_PAYLOAD_ALLOC; - intel_de_write(dev_priv, - TRANS_DDI_FUNC_CTL(pipe_config->cpu_transcoder), - val); + intel_de_rmw(dev_priv, TRANS_DDI_FUNC_CTL(trans), 0, + TRANS_DDI_DP_VC_PAYLOAD_ALLOC); drm_dbg_kms(&dev_priv->drm, "active links %d\n", intel_dp->active_mst_links); @@ -564,6 +560,10 @@ static void intel_mst_enable_dp(struct intel_atomic_state *state, drm_dp_update_payload_part2(&intel_dp->mst_mgr); + if (DISPLAY_VER(dev_priv) >= 12 && pipe_config->fec_enable) + intel_de_rmw(dev_priv, CHICKEN_TRANS(trans), 0, + FECSTALL_DIS_DPTSTREAM_DPTTG); + intel_enable_pipe(pipe_config); intel_crtc_vblank_on(pipe_config); |