diff options
| -rw-r--r-- | drivers/gpu/drm/drm_dp_mst_topology.c | 13 | ||||
| -rw-r--r-- | include/drm/drm_dp_mst_helper.h | 2 |
2 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 9a5b68717ec8..0d15e6e30732 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -2319,6 +2319,19 @@ out: } EXPORT_SYMBOL(drm_dp_mst_allocate_vcpi); +int drm_dp_mst_get_vcpi_slots(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port) +{ + int slots = 0; + port = drm_dp_get_validated_port_ref(mgr, port); + if (!port) + return slots; + + slots = port->vcpi.num_slots; + drm_dp_put_port(port); + return slots; +} +EXPORT_SYMBOL(drm_dp_mst_get_vcpi_slots); + /** * drm_dp_mst_reset_vcpi_slots() - Reset number of slots to 0 for VCPI * @mgr: manager for this port diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h index 00c1da927245..a2507817be41 100644 --- a/include/drm/drm_dp_mst_helper.h +++ b/include/drm/drm_dp_mst_helper.h @@ -486,6 +486,8 @@ int drm_dp_calc_pbn_mode(int clock, int bpp); bool drm_dp_mst_allocate_vcpi(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, int pbn, int *slots); +int drm_dp_mst_get_vcpi_slots(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port); + void drm_dp_mst_reset_vcpi_slots(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port); |