diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 7d098a8c994c..24a3c0c27635 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -2968,6 +2968,24 @@ intel_dp_sink_set_dsc_decompression(struct intel_connector *connector, str_enable_disable(enable)); } +static void +intel_dp_sink_set_dsc_passthrough(const struct intel_connector *connector, + bool enable) +{ + struct drm_i915_private *i915 = to_i915(connector->base.dev); + struct drm_dp_aux *aux = connector->port ? + connector->port->passthrough_aux : NULL; + + if (!aux) + return; + + if (write_dsc_decompression_flag(aux, + DP_DSC_PASSTHROUGH_EN, enable) < 0) + drm_dbg_kms(&i915->drm, + "Failed to %s sink compression passthrough state\n", + str_enable_disable(enable)); +} + /** * intel_dp_sink_enable_decompression - Enable DSC decompression in sink/last branch device * @state: atomic state @@ -2994,7 +3012,7 @@ void intel_dp_sink_enable_decompression(struct intel_atomic_state *state, !connector->dp.dsc_decompression_aux)) return; - /* TODO: Enable passthrough in the MST last branch device if needed. */ + intel_dp_sink_set_dsc_passthrough(connector, true); intel_dp_sink_set_dsc_decompression(connector, true); } @@ -3022,7 +3040,7 @@ void intel_dp_sink_disable_decompression(struct intel_atomic_state *state, return; intel_dp_sink_set_dsc_decompression(connector, false); - /* TODO: Disable passthrough in the MST last branch device if needed. */ + intel_dp_sink_set_dsc_passthrough(connector, false); } static void |