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drm/dp_mst: Factor out drm_dp_mst_port_is_logical()

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Factor out a function to check if an MST port is logical, used by a
follow-up i915 patch in the patchset.

v2: Move drm_dp_mst_aux_for_parent() forward declaration to the next
    patch. (Ankit)

Cc: Lyude Paul <lyude@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240416221010.376865-9-imre.deak@intel.com
This commit is contained in:
Imre Deak 2024-04-17 01:10:07 +03:00
parent 8976bf1877
commit ca5d9d78f0
2 changed files with 9 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/display/drm_dp_mst_topology.c
View File

@ -2274,7 +2274,7 @@ drm_dp_mst_port_add_connector(struct drm_dp_mst_branch *mstb,
if (port->pdt != DP_PEER_DEVICE_NONE && if (port->pdt != DP_PEER_DEVICE_NONE &&
drm_dp_mst_is_end_device(port->pdt, port->mcs) && drm_dp_mst_is_end_device(port->pdt, port->mcs) &&
port->port_num >= DP_MST_LOGICAL_PORT_0) drm_dp_mst_port_is_logical(port))
port->cached_edid = drm_edid_read_ddc(port->connector, port->cached_edid = drm_edid_read_ddc(port->connector,
&port->aux.ddc); &port->aux.ddc);
@ -4219,7 +4219,7 @@ drm_dp_mst_detect_port(struct drm_connector *connector,
case DP_PEER_DEVICE_SST_SINK: case DP_PEER_DEVICE_SST_SINK:
ret = connector_status_connected; ret = connector_status_connected;
/* for logical ports - cache the EDID */ /* for logical ports - cache the EDID */
if (port->port_num >= DP_MST_LOGICAL_PORT_0 && !port->cached_edid) if (drm_dp_mst_port_is_logical(port) && !port->cached_edid)
port->cached_edid = drm_edid_read_ddc(connector, &port->aux.ddc); port->cached_edid = drm_edid_read_ddc(connector, &port->aux.ddc);
break; break;
case DP_PEER_DEVICE_DP_LEGACY_CONV: case DP_PEER_DEVICE_DP_LEGACY_CONV:
@ -5983,7 +5983,7 @@ static bool drm_dp_mst_is_virtual_dpcd(struct drm_dp_mst_port *port)
return false; return false;
/* Virtual DP Sink (Internal Display Panel) */ /* Virtual DP Sink (Internal Display Panel) */
if (port->port_num >= 8) if (drm_dp_mst_port_is_logical(port))
return true; return true;
/* DP-to-HDMI Protocol Converter */ /* DP-to-HDMI Protocol Converter */

6
include/drm/display/drm_dp_mst_helper.h
View File

@ -949,6 +949,12 @@ int __must_check drm_dp_mst_root_conn_atomic_check(struct drm_connector_state *n
void drm_dp_mst_get_port_malloc(struct drm_dp_mst_port *port); void drm_dp_mst_get_port_malloc(struct drm_dp_mst_port *port);
void drm_dp_mst_put_port_malloc(struct drm_dp_mst_port *port); void drm_dp_mst_put_port_malloc(struct drm_dp_mst_port *port);
static inline
bool drm_dp_mst_port_is_logical(struct drm_dp_mst_port *port)
{
return port->port_num >= DP_MST_LOGICAL_PORT_0;
}
struct drm_dp_aux *drm_dp_mst_dsc_aux_for_port(struct drm_dp_mst_port *port); struct drm_dp_aux *drm_dp_mst_dsc_aux_for_port(struct drm_dp_mst_port *port);
static inline struct drm_dp_mst_topology_state * static inline struct drm_dp_mst_topology_state *