drm/dp_mst: Use DP_MST_LOGICAL_PORT_0 instead of magic number

Use the macro defined for the first logical port instead of the
corresponding magic number.

Cc: Lyude Paul <lyude@redhat.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210201120145.350258-4-imre.deak@intel.com

diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 1979c57..2fb84e7 100644 (file)
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -4219,9 +4219,8 @@ drm_dp_mst_detect_port(struct drm_connector *connector,
        case DP_PEER_DEVICE_SST_SINK:
                ret = connector_status_connected;
                /* for logical ports - cache the EDID */
-               if (port->port_num >= 8 && !port->cached_edid) {
+               if (port->port_num >= DP_MST_LOGICAL_PORT_0 && !port->cached_edid)
                        port->cached_edid = drm_get_edid(connector, &port->aux.ddc);
-               }
                break;
        case DP_PEER_DEVICE_DP_LEGACY_CONV:
                if (port->ldps)