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-rw-r--r--drivers/of/property.c89
1 files changed, 61 insertions, 28 deletions
diff --git a/drivers/of/property.c b/drivers/of/property.c
index 067f9fab7b77..fbb72116e9d4 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -55,8 +55,8 @@ int of_property_count_elems_of_size(const struct device_node *np,
return -ENODATA;
if (prop->length % elem_size != 0) {
- pr_err("size of %s in node %s is not a multiple of %d\n",
- propname, np->full_name, elem_size);
+ pr_err("size of %s in node %pOF is not a multiple of %d\n",
+ propname, np, elem_size);
return -EINVAL;
}
@@ -537,8 +537,8 @@ int of_graph_parse_endpoint(const struct device_node *node,
{
struct device_node *port_node = of_get_parent(node);
- WARN_ONCE(!port_node, "%s(): endpoint %s has no parent node\n",
- __func__, node->full_name);
+ WARN_ONCE(!port_node, "%s(): endpoint %pOF has no parent node\n",
+ __func__, node);
memset(endpoint, 0, sizeof(*endpoint));
@@ -621,14 +621,13 @@ struct device_node *of_graph_get_next_endpoint(const struct device_node *parent,
of_node_put(node);
if (!port) {
- pr_err("graph: no port node found in %s\n",
- parent->full_name);
+ pr_err("graph: no port node found in %pOF\n", parent);
return NULL;
}
} else {
port = of_get_parent(prev);
- if (WARN_ONCE(!port, "%s(): endpoint %s has no parent node\n",
- __func__, prev->full_name))
+ if (WARN_ONCE(!port, "%s(): endpoint %pOF has no parent node\n",
+ __func__, prev))
return NULL;
}
@@ -797,8 +796,8 @@ struct device_node *of_graph_get_remote_node(const struct device_node *node,
endpoint_node = of_graph_get_endpoint_by_regs(node, port, endpoint);
if (!endpoint_node) {
- pr_debug("no valid endpoint (%d, %d) for node %s\n",
- port, endpoint, node->full_name);
+ pr_debug("no valid endpoint (%d, %d) for node %pOF\n",
+ port, endpoint, node);
return NULL;
}
@@ -828,23 +827,23 @@ static void of_fwnode_put(struct fwnode_handle *fwnode)
of_node_put(to_of_node(fwnode));
}
-static bool of_fwnode_device_is_available(struct fwnode_handle *fwnode)
+static bool of_fwnode_device_is_available(const struct fwnode_handle *fwnode)
{
return of_device_is_available(to_of_node(fwnode));
}
-static bool of_fwnode_property_present(struct fwnode_handle *fwnode,
+static bool of_fwnode_property_present(const struct fwnode_handle *fwnode,
const char *propname)
{
return of_property_read_bool(to_of_node(fwnode), propname);
}
-static int of_fwnode_property_read_int_array(struct fwnode_handle *fwnode,
+static int of_fwnode_property_read_int_array(const struct fwnode_handle *fwnode,
const char *propname,
unsigned int elem_size, void *val,
size_t nval)
{
- struct device_node *node = to_of_node(fwnode);
+ const struct device_node *node = to_of_node(fwnode);
if (!val)
return of_property_count_elems_of_size(node, propname,
@@ -864,24 +863,26 @@ static int of_fwnode_property_read_int_array(struct fwnode_handle *fwnode,
return -ENXIO;
}
-static int of_fwnode_property_read_string_array(struct fwnode_handle *fwnode,
- const char *propname,
- const char **val, size_t nval)
+static int
+of_fwnode_property_read_string_array(const struct fwnode_handle *fwnode,
+ const char *propname, const char **val,
+ size_t nval)
{
- struct device_node *node = to_of_node(fwnode);
+ const struct device_node *node = to_of_node(fwnode);
return val ?
of_property_read_string_array(node, propname, val, nval) :
of_property_count_strings(node, propname);
}
-static struct fwnode_handle *of_fwnode_get_parent(struct fwnode_handle *fwnode)
+static struct fwnode_handle *
+of_fwnode_get_parent(const struct fwnode_handle *fwnode)
{
return of_fwnode_handle(of_get_parent(to_of_node(fwnode)));
}
static struct fwnode_handle *
-of_fwnode_get_next_child_node(struct fwnode_handle *fwnode,
+of_fwnode_get_next_child_node(const struct fwnode_handle *fwnode,
struct fwnode_handle *child)
{
return of_fwnode_handle(of_get_next_available_child(to_of_node(fwnode),
@@ -889,10 +890,10 @@ of_fwnode_get_next_child_node(struct fwnode_handle *fwnode,
}
static struct fwnode_handle *
-of_fwnode_get_named_child_node(struct fwnode_handle *fwnode,
+of_fwnode_get_named_child_node(const struct fwnode_handle *fwnode,
const char *childname)
{
- struct device_node *node = to_of_node(fwnode);
+ const struct device_node *node = to_of_node(fwnode);
struct device_node *child;
for_each_available_child_of_node(node, child)
@@ -902,8 +903,38 @@ of_fwnode_get_named_child_node(struct fwnode_handle *fwnode,
return NULL;
}
+static int
+of_fwnode_get_reference_args(const struct fwnode_handle *fwnode,
+ const char *prop, const char *nargs_prop,
+ unsigned int nargs, unsigned int index,
+ struct fwnode_reference_args *args)
+{
+ struct of_phandle_args of_args;
+ unsigned int i;
+ int ret;
+
+ if (nargs_prop)
+ ret = of_parse_phandle_with_args(to_of_node(fwnode), prop,
+ nargs_prop, index, &of_args);
+ else
+ ret = of_parse_phandle_with_fixed_args(to_of_node(fwnode), prop,
+ nargs, index, &of_args);
+ if (ret < 0)
+ return ret;
+ if (!args)
+ return 0;
+
+ args->nargs = of_args.args_count;
+ args->fwnode = of_fwnode_handle(of_args.np);
+
+ for (i = 0; i < NR_FWNODE_REFERENCE_ARGS; i++)
+ args->args[i] = i < of_args.args_count ? of_args.args[i] : 0;
+
+ return 0;
+}
+
static struct fwnode_handle *
-of_fwnode_graph_get_next_endpoint(struct fwnode_handle *fwnode,
+of_fwnode_graph_get_next_endpoint(const struct fwnode_handle *fwnode,
struct fwnode_handle *prev)
{
return of_fwnode_handle(of_graph_get_next_endpoint(to_of_node(fwnode),
@@ -911,10 +942,10 @@ of_fwnode_graph_get_next_endpoint(struct fwnode_handle *fwnode,
}
static struct fwnode_handle *
-of_fwnode_graph_get_remote_endpoint(struct fwnode_handle *fwnode)
+of_fwnode_graph_get_remote_endpoint(const struct fwnode_handle *fwnode)
{
- return of_fwnode_handle(of_parse_phandle(to_of_node(fwnode),
- "remote-endpoint", 0));
+ return of_fwnode_handle(
+ of_graph_get_remote_endpoint(to_of_node(fwnode)));
}
static struct fwnode_handle *
@@ -934,10 +965,10 @@ of_fwnode_graph_get_port_parent(struct fwnode_handle *fwnode)
return of_fwnode_handle(of_get_next_parent(np));
}
-static int of_fwnode_graph_parse_endpoint(struct fwnode_handle *fwnode,
+static int of_fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode,
struct fwnode_endpoint *endpoint)
{
- struct device_node *node = to_of_node(fwnode);
+ const struct device_node *node = to_of_node(fwnode);
struct device_node *port_node = of_get_parent(node);
endpoint->local_fwnode = fwnode;
@@ -960,8 +991,10 @@ 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,
+ .get_reference_args = of_fwnode_get_reference_args,
.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,
};
+EXPORT_SYMBOL_GPL(of_fwnode_ops);
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-05-19 22:40:08 +0200