diff --git a/Documentation/DocBook/drm.tmpl b/Documentation/DocBook/drm.tmpl
index bc4b5ab5848e3f92fda4a92ea08ff4761f1363a9..60c1063d4178296bba934596f026dfa79aac1025 100644
--- a/Documentation/DocBook/drm.tmpl
+++ b/Documentation/DocBook/drm.tmpl
@@ -2551,7 +2551,7 @@ void intel_crt_init(struct drm_device *dev)
DRM |
- Generic |
+ Generic |
“EDID” |
BLOB | IMMUTABLE |
0 |
@@ -2573,6 +2573,13 @@ void intel_crt_init(struct drm_device *dev)
Contains topology path to a connector. |
+ “TILE” |
+ BLOB | IMMUTABLE |
+ 0 |
+ Connector |
+ Contains tiling information for a connector. |
+
+
Plane |
“type” |
ENUM | IMMUTABLE |
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index eb89327fb737749fde36dd7cabe273438b752004..4a44f894f631983a5570aa2d2194207f347b83ea 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -1344,6 +1344,11 @@ static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
"PATH", 0);
dev->mode_config.path_property = dev_path;
+ dev->mode_config.tile_property = drm_property_create(dev,
+ DRM_MODE_PROP_BLOB |
+ DRM_MODE_PROP_IMMUTABLE,
+ "TILE", 0);
+
return 0;
}
@@ -4087,6 +4092,52 @@ int drm_mode_connector_set_path_property(struct drm_connector *connector,
}
EXPORT_SYMBOL(drm_mode_connector_set_path_property);
+/**
+ * drm_mode_connector_set_tile_property - set tile property on connector
+ * @connector: connector to set property on.
+ *
+ * This looks up the tile information for a connector, and creates a
+ * property for userspace to parse if it exists. The property is of
+ * the form of 8 integers using ':' as a separator.
+ *
+ * Returns:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_connector_set_tile_property(struct drm_connector *connector)
+{
+ struct drm_device *dev = connector->dev;
+ int ret, size;
+ char tile[256];
+
+ if (connector->tile_blob_ptr)
+ drm_property_destroy_blob(dev, connector->tile_blob_ptr);
+
+ if (!connector->has_tile) {
+ connector->tile_blob_ptr = NULL;
+ ret = drm_object_property_set_value(&connector->base,
+ dev->mode_config.tile_property, 0);
+ return ret;
+ }
+
+ snprintf(tile, 256, "%d:%d:%d:%d:%d:%d:%d:%d",
+ connector->tile_group->id, connector->tile_is_single_monitor,
+ connector->num_h_tile, connector->num_v_tile,
+ connector->tile_h_loc, connector->tile_v_loc,
+ connector->tile_h_size, connector->tile_v_size);
+ size = strlen(tile) + 1;
+
+ connector->tile_blob_ptr = drm_property_create_blob(connector->dev,
+ size, tile);
+ if (!connector->tile_blob_ptr)
+ return -EINVAL;
+
+ ret = drm_object_property_set_value(&connector->base,
+ dev->mode_config.tile_property,
+ connector->tile_blob_ptr->base.id);
+ return ret;
+}
+EXPORT_SYMBOL(drm_mode_connector_set_tile_property);
+
/**
* drm_mode_connector_update_edid_property - update the edid property of a connector
* @connector: drm connector
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 0a9d3aad3cbae2d97be0d86f5f652513c5ad900c..9a5b68717ec8c31fbd27bfa313833b568444fce9 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -2236,6 +2236,7 @@ struct edid *drm_dp_mst_get_edid(struct drm_connector *connector, struct drm_dp_
else
edid = drm_get_edid(connector, &port->aux.ddc);
+ drm_mode_connector_set_tile_property(connector);
drm_dp_put_port(port);
return edid;
}
diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
index 428bb3041621f2058d12d85bea56d291d6e7a643..7f8c6a66680a611c3aeff7171c8a1b0839daa8b9 100644
--- a/drivers/gpu/drm/i915/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/intel_dp_mst.c
@@ -414,6 +414,8 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
intel_dp_add_properties(intel_dp, connector);
drm_object_attach_property(&connector->base, dev->mode_config.path_property, 0);
+ drm_object_attach_property(&connector->base, dev->mode_config.tile_property, 0);
+
drm_mode_connector_set_path_property(connector, pathprop);
drm_reinit_primary_mode_group(dev);
mutex_lock(&dev->mode_config.mutex);
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 01744ed792501278b232691d303225b31fc837e6..b86329813ad3a3820955e836956be591fc1f7a0d 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -651,6 +651,8 @@ struct drm_connector {
struct drm_property_blob *path_blob_ptr;
+ struct drm_property_blob *tile_blob_ptr;
+
uint8_t polled; /* DRM_CONNECTOR_POLL_* */
/* requested DPMS state */
@@ -1048,6 +1050,7 @@ struct drm_mode_config {
struct drm_property *edid_property;
struct drm_property *dpms_property;
struct drm_property *path_property;
+ struct drm_property *tile_property;
struct drm_property *plane_type_property;
struct drm_property *rotation_property;
@@ -1217,6 +1220,7 @@ extern void drm_mode_config_cleanup(struct drm_device *dev);
extern int drm_mode_connector_set_path_property(struct drm_connector *connector,
const char *path);
+int drm_mode_connector_set_tile_property(struct drm_connector *connector);
extern int drm_mode_connector_update_edid_property(struct drm_connector *connector,
const struct edid *edid);