diff options
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/property.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c index 14013f635db6..a24ca61294eb 100644 --- a/drivers/acpi/property.c +++ b/drivers/acpi/property.c @@ -1179,6 +1179,42 @@ acpi_fwnode_get_named_child_node(struct fwnode_handle *fwnode, return NULL; } +static struct fwnode_handle * +acpi_fwnode_graph_get_next_endpoint(struct fwnode_handle *fwnode, + struct fwnode_handle *prev) +{ + struct fwnode_handle *endpoint; + + endpoint = acpi_graph_get_next_endpoint(fwnode, prev); + if (IS_ERR(endpoint)) + return NULL; + + return endpoint; +} + +static struct fwnode_handle * +acpi_fwnode_graph_get_remote_endpoint(struct fwnode_handle *fwnode) +{ + struct fwnode_handle *endpoint = NULL; + + acpi_graph_get_remote_endpoint(fwnode, NULL, NULL, &endpoint); + + return endpoint; +} + +static int acpi_fwnode_graph_parse_endpoint(struct fwnode_handle *fwnode, + struct fwnode_endpoint *endpoint) +{ + struct fwnode_handle *port_fwnode = fwnode_get_parent(fwnode); + + endpoint->local_fwnode = fwnode; + + fwnode_property_read_u32(port_fwnode, "port", &endpoint->port); + fwnode_property_read_u32(fwnode, "endpoint", &endpoint->id); + + return 0; +} + const struct fwnode_operations acpi_fwnode_ops = { .property_present = acpi_fwnode_property_present, .property_read_int_array = acpi_fwnode_property_read_int_array, @@ -1186,4 +1222,8 @@ const struct fwnode_operations acpi_fwnode_ops = { .get_parent = acpi_node_get_parent, .get_next_child_node = acpi_get_next_subnode, .get_named_child_node = acpi_fwnode_get_named_child_node, + .graph_get_next_endpoint = acpi_fwnode_graph_get_next_endpoint, + .graph_get_remote_endpoint = acpi_fwnode_graph_get_remote_endpoint, + .graph_get_port_parent = acpi_node_get_parent, + .graph_parse_endpoint = acpi_fwnode_graph_parse_endpoint, }; |
