diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 43 |
1 files changed, 35 insertions, 8 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index c87fcda61b66..2e7f4d2ae73a 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -886,6 +886,7 @@ static void emulated_link_detect(struct dc_link *link) return; } + /* dc_sink_create returns a new reference */ link->local_sink = sink; edid_status = dm_helpers_read_local_edid( @@ -952,6 +953,8 @@ static int dm_resume(void *handle) if (aconnector->fake_enable && aconnector->dc_link->local_sink) aconnector->fake_enable = false; + if (aconnector->dc_sink) + dc_sink_release(aconnector->dc_sink); aconnector->dc_sink = NULL; amdgpu_dm_update_connector_after_detect(aconnector); mutex_unlock(&aconnector->hpd_lock); @@ -1061,6 +1064,8 @@ amdgpu_dm_update_connector_after_detect(struct amdgpu_dm_connector *aconnector) sink = aconnector->dc_link->local_sink; + if (sink) + dc_sink_retain(sink); /* * Edid mgmt connector gets first update only in mode_valid hook and then @@ -1085,21 +1090,24 @@ amdgpu_dm_update_connector_after_detect(struct amdgpu_dm_connector *aconnector) * to it anymore after disconnect, so on next crtc to connector * reshuffle by UMD we will get into unwanted dc_sink release */ - if (aconnector->dc_sink != aconnector->dc_em_sink) - dc_sink_release(aconnector->dc_sink); + dc_sink_release(aconnector->dc_sink); } aconnector->dc_sink = sink; + dc_sink_retain(aconnector->dc_sink); amdgpu_dm_update_freesync_caps(connector, aconnector->edid); } else { amdgpu_dm_update_freesync_caps(connector, NULL); - if (!aconnector->dc_sink) + if (!aconnector->dc_sink) { aconnector->dc_sink = aconnector->dc_em_sink; - else if (aconnector->dc_sink != aconnector->dc_em_sink) dc_sink_retain(aconnector->dc_sink); + } } mutex_unlock(&dev->mode_config.mutex); + + if (sink) + dc_sink_release(sink); return; } @@ -1107,8 +1115,10 @@ amdgpu_dm_update_connector_after_detect(struct amdgpu_dm_connector *aconnector) * TODO: temporary guard to look for proper fix * if this sink is MST sink, we should not do anything */ - if (sink && sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT_MST) + if (sink && sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT_MST) { + dc_sink_release(sink); return; + } if (aconnector->dc_sink == sink) { /* @@ -1117,6 +1127,8 @@ amdgpu_dm_update_connector_after_detect(struct amdgpu_dm_connector *aconnector) */ DRM_DEBUG_DRIVER("DCHPD: connector_id=%d: dc_sink didn't change.\n", aconnector->connector_id); + if (sink) + dc_sink_release(sink); return; } @@ -1138,6 +1150,7 @@ amdgpu_dm_update_connector_after_detect(struct amdgpu_dm_connector *aconnector) amdgpu_dm_update_freesync_caps(connector, NULL); aconnector->dc_sink = sink; + dc_sink_retain(aconnector->dc_sink); if (sink->dc_edid.length == 0) { aconnector->edid = NULL; drm_dp_cec_unset_edid(&aconnector->dm_dp_aux.aux); @@ -1158,11 +1171,15 @@ amdgpu_dm_update_connector_after_detect(struct amdgpu_dm_connector *aconnector) amdgpu_dm_update_freesync_caps(connector, NULL); drm_connector_update_edid_property(connector, NULL); aconnector->num_modes = 0; + dc_sink_release(aconnector->dc_sink); aconnector->dc_sink = NULL; aconnector->edid = NULL; } mutex_unlock(&dev->mode_config.mutex); + + if (sink) + dc_sink_release(sink); } static void handle_hpd_irq(void *param) @@ -2977,6 +2994,7 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector, return stream; } else { sink = aconnector->dc_sink; + dc_sink_retain(sink); } stream = dc_create_stream_for_sink(sink); @@ -3042,8 +3060,7 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector, update_stream_signal(stream, sink); finish: - if (sink && sink->sink_signal == SIGNAL_TYPE_VIRTUAL && aconnector->base.force != DRM_FORCE_ON) - dc_sink_release(sink); + dc_sink_release(sink); return stream; } @@ -3301,6 +3318,14 @@ static void amdgpu_dm_connector_destroy(struct drm_connector *connector) dm->backlight_dev = NULL; } #endif + + if (aconnector->dc_em_sink) + dc_sink_release(aconnector->dc_em_sink); + aconnector->dc_em_sink = NULL; + if (aconnector->dc_sink) + dc_sink_release(aconnector->dc_sink); + aconnector->dc_sink = NULL; + drm_dp_cec_unregister_connector(&aconnector->dm_dp_aux.aux); drm_connector_unregister(connector); drm_connector_cleanup(connector); @@ -3398,10 +3423,12 @@ static void create_eml_sink(struct amdgpu_dm_connector *aconnector) (edid->extensions + 1) * EDID_LENGTH, &init_params); - if (aconnector->base.force == DRM_FORCE_ON) + if (aconnector->base.force == DRM_FORCE_ON) { aconnector->dc_sink = aconnector->dc_link->local_sink ? aconnector->dc_link->local_sink : aconnector->dc_em_sink; + dc_sink_retain(aconnector->dc_sink); + } } static void handle_edid_mgmt(struct amdgpu_dm_connector *aconnector) |