diff options
Diffstat (limited to 'drivers/base/property.c')
| -rw-r--r-- | drivers/base/property.c | 49 |
1 files changed, 39 insertions, 10 deletions
diff --git a/drivers/base/property.c b/drivers/base/property.c index e2860abf9889..39435ba64dac 100644 --- a/drivers/base/property.c +++ b/drivers/base/property.c @@ -1049,6 +1049,18 @@ fwnode_graph_get_remote_node(const struct fwnode_handle *fwnode, u32 port_id, } EXPORT_SYMBOL_GPL(fwnode_graph_get_remote_node); +static bool fwnode_graph_remote_available(struct fwnode_handle *ep) +{ + struct fwnode_handle *dev_node; + bool available; + + dev_node = fwnode_graph_get_remote_port_parent(ep); + available = fwnode_device_is_available(dev_node); + fwnode_handle_put(dev_node); + + return available; +} + /** * fwnode_graph_get_endpoint_by_id - get endpoint by port and endpoint numbers * @fwnode: parent fwnode_handle containing the graph @@ -1082,16 +1094,8 @@ fwnode_graph_get_endpoint_by_id(const struct fwnode_handle *fwnode, struct fwnode_endpoint fwnode_ep = { 0 }; int ret; - if (enabled_only) { - struct fwnode_handle *dev_node; - bool available; - - dev_node = fwnode_graph_get_remote_port_parent(ep); - available = fwnode_device_is_available(dev_node); - fwnode_handle_put(dev_node); - if (!available) - continue; - } + if (enabled_only && !fwnode_graph_remote_available(ep)) + continue; ret = fwnode_graph_parse_endpoint(ep, &fwnode_ep); if (ret < 0) @@ -1125,6 +1129,31 @@ fwnode_graph_get_endpoint_by_id(const struct fwnode_handle *fwnode, EXPORT_SYMBOL_GPL(fwnode_graph_get_endpoint_by_id); /** + * fwnode_graph_get_endpoint_count - Count endpoints on a device node + * @fwnode: The node related to a device + * @flags: fwnode lookup flags + * Count endpoints in a device node. + * + * If FWNODE_GRAPH_DEVICE_DISABLED flag is specified, also unconnected endpoints + * and endpoints connected to disabled devices are counted. + */ +unsigned int fwnode_graph_get_endpoint_count(struct fwnode_handle *fwnode, + unsigned long flags) +{ + struct fwnode_handle *ep; + unsigned int count = 0; + + fwnode_graph_for_each_endpoint(fwnode, ep) { + if (flags & FWNODE_GRAPH_DEVICE_DISABLED || + fwnode_graph_remote_available(ep)) + count++; + } + + return count; +} +EXPORT_SYMBOL_GPL(fwnode_graph_get_endpoint_count); + +/** * fwnode_graph_parse_endpoint - parse common endpoint node properties * @fwnode: pointer to endpoint fwnode_handle * @endpoint: pointer to the fwnode endpoint data structure |