diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc_link.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_link.h | 38 |
1 files changed, 32 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h b/drivers/gpu/drm/amd/display/dc/dc_link.h index e189f16bc026..b0013e674864 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_link.h +++ b/drivers/gpu/drm/amd/display/dc/dc_link.h @@ -35,6 +35,13 @@ enum dc_link_fec_state { dc_link_fec_ready, dc_link_fec_enabled }; + +enum lttpr_mode { + LTTPR_MODE_NON_LTTPR, + LTTPR_MODE_TRANSPARENT, + LTTPR_MODE_NON_TRANSPARENT, +}; + struct dc_link_status { bool link_active; struct dpcd_caps *dpcd_caps; @@ -100,9 +107,13 @@ struct dc_link { bool link_state_valid; bool aux_access_disabled; bool sync_lt_in_progress; - bool lttpr_non_transparent_mode; + enum lttpr_mode lttpr_mode; bool is_internal_display; + /* TODO: Rename. Flag an endpoint as having a programmable mapping to a + * DIG encoder. */ + bool is_dig_mapping_flexible; + bool edp_sink_present; /* caps is the same as reported_link_cap. link_traing use @@ -121,6 +132,11 @@ struct dc_link { uint8_t hpd_src; uint8_t link_enc_hw_inst; + /* DIG link encoder ID. Used as index in link encoder resource pool. + * For links with fixed mapping to DIG, this is not changed after dc_link + * object creation. + */ + enum engine_id eng_id; bool test_pattern_enabled; union compliance_test_state compliance_test_state; @@ -140,6 +156,11 @@ struct dc_link { struct panel_cntl *panel_cntl; struct link_encoder *link_enc; struct graphics_object_id link_id; + /* Endpoint type distinguishes display endpoints which do not have entries + * in the BIOS connector table from those that do. Helps when tracking link + * encoder to display endpoint assignments. + */ + enum display_endpoint_type ep_type; union ddi_channel_mapping ddi_channel_mapping; struct connector_device_tag_info device_tag; struct dpcd_caps dpcd_caps; @@ -183,16 +204,21 @@ static inline struct dc_link *dc_get_link_at_index(struct dc *dc, uint32_t link_ return dc->links[link_index]; } -static inline struct dc_link *get_edp_link(const struct dc *dc) +static inline void get_edp_links(const struct dc *dc, + struct dc_link **edp_links, + int *edp_num) { int i; - // report any eDP links, even unconnected DDI's + *edp_num = 0; for (i = 0; i < dc->link_count; i++) { - if (dc->links[i]->connector_signal == SIGNAL_TYPE_EDP) - return dc->links[i]; + // report any eDP links, even unconnected DDI's + if (dc->links[i]->connector_signal == SIGNAL_TYPE_EDP) { + edp_links[*edp_num] = dc->links[i]; + if (++(*edp_num) == MAX_NUM_EDP) + return; + } } - return NULL; } /* Set backlight level of an embedded panel (eDP, LVDS). |