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authorSakari Ailus <sakari.ailus@linux.intel.com>2017-06-06 12:37:38 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2017-06-22 03:55:34 +0300
commit3b27d00e7b6d7c889d87fd00df600c495b968e30 (patch)
treeec5532591c7f0c79bb32745857f24aab4da64914 /drivers/of
parent3708184afc77bb67709a67a35d9f367ebd32cbc4 (diff)
downloadlinux-3b27d00e7b6d7c889d87fd00df600c495b968e30.tar.xz
device property: Move fwnode graph ops to firmware specific locations
Move firmware specific implementations of the fwnode graph operations to firmware specific locations. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/of')
-rw-r--r--drivers/of/property.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/drivers/of/property.c b/drivers/of/property.c
index 250859234fb0..e859e41e33f3 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -844,6 +844,54 @@ of_fwnode_get_named_child_node(struct fwnode_handle *fwnode,
return NULL;
}
+static struct fwnode_handle *
+of_fwnode_graph_get_next_endpoint(struct fwnode_handle *fwnode,
+ struct fwnode_handle *prev)
+{
+ return of_fwnode_handle(of_graph_get_next_endpoint(to_of_node(fwnode),
+ to_of_node(prev)));
+}
+
+static struct fwnode_handle *
+of_fwnode_graph_get_remote_endpoint(struct fwnode_handle *fwnode)
+{
+ return of_fwnode_handle(of_parse_phandle(to_of_node(fwnode),
+ "remote-endpoint", 0));
+}
+
+static struct fwnode_handle *
+of_fwnode_graph_get_port_parent(struct fwnode_handle *fwnode)
+{
+ struct device_node *np;
+
+ /* Get the parent of the port */
+ np = of_get_next_parent(to_of_node(fwnode));
+ if (!np)
+ return NULL;
+
+ /* Is this the "ports" node? If not, it's the port parent. */
+ if (of_node_cmp(np->name, "ports"))
+ return of_fwnode_handle(np);
+
+ return of_fwnode_handle(of_get_next_parent(np));
+}
+
+static int of_fwnode_graph_parse_endpoint(struct fwnode_handle *fwnode,
+ struct fwnode_endpoint *endpoint)
+{
+ struct device_node *node = to_of_node(fwnode);
+ struct device_node *port_node = of_get_parent(node);
+
+ endpoint->local_fwnode = fwnode;
+
+ of_property_read_u32(port_node, "reg", &endpoint->port);
+ of_property_read_u32(node, "reg", &endpoint->id);
+
+ of_node_put(port_node);
+
+ return 0;
+}
+
const struct fwnode_operations of_fwnode_ops = {
.get = of_fwnode_get,
.put = of_fwnode_put,
@@ -853,4 +901,8 @@ const struct fwnode_operations of_fwnode_ops = {
.get_parent = of_fwnode_get_parent,
.get_next_child_node = of_fwnode_get_next_child_node,
.get_named_child_node = of_fwnode_get_named_child_node,
+ .graph_get_next_endpoint = of_fwnode_graph_get_next_endpoint,
+ .graph_get_remote_endpoint = of_fwnode_graph_get_remote_endpoint,
+ .graph_get_port_parent = of_fwnode_graph_get_port_parent,
+ .graph_parse_endpoint = of_fwnode_graph_parse_endpoint,
};