Move firmware specific implementations of the fwnode graph operations to
firmware specific locations.
Depends-on: ("of: Make of_fwnode_handle() safer")
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
---
drivers/acpi/property.c | 39 +++++++++++++++++++++
drivers/base/property.c | 91 +++++--------------------------------------------
drivers/of/property.c | 69 +++++++++++++++++++++++++++++--------
include/linux/fwnode.h | 13 +++++++
4 files changed, 114 insertions(+), 98 deletions(-)
diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c
index 89bedaa..fee18f0 100644
--- a/drivers/acpi/property.c
+++ b/drivers/acpi/property.c
@@ -1177,6 +1177,41 @@ static struct fwnode_handle *acpi_fwnode_get_named_child_node(
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,
@@ -1184,4 +1219,8 @@ 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,
};
diff --git a/drivers/base/property.c b/drivers/base/property.c
index 4dc5ab6..b6299a6 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -1154,24 +1154,7 @@ struct fwnode_handle *
fwnode_graph_get_next_endpoint(struct fwnode_handle *fwnode,
struct fwnode_handle *prev)
{
- struct fwnode_handle *endpoint = NULL;
-
- if (is_of_node(fwnode)) {
- struct device_node *node;
-
- node = of_graph_get_next_endpoint(to_of_node(fwnode),
- to_of_node(prev));
-
- if (node)
- endpoint = &node->fwnode;
- } else if (is_acpi_node(fwnode)) {
- endpoint = acpi_graph_get_next_endpoint(fwnode, prev);
- if (IS_ERR(endpoint))
- endpoint = NULL;
- }
-
- return endpoint;
-
+ return fwnode_call_ptr_op(fwnode, graph_get_next_endpoint, prev);
}
EXPORT_SYMBOL_GPL(fwnode_graph_get_next_endpoint);
@@ -1184,22 +1167,12 @@ EXPORT_SYMBOL_GPL(fwnode_graph_get_next_endpoint);
struct fwnode_handle *
fwnode_graph_get_remote_port_parent(struct fwnode_handle *fwnode)
{
- struct fwnode_handle *parent = NULL;
+ struct fwnode_handle *port, *parent;
- if (is_of_node(fwnode)) {
- struct device_node *node;
+ port = fwnode_graph_get_remote_port(fwnode);
+ parent = fwnode_call_ptr_op(port, graph_get_port_parent);
- node = of_graph_get_remote_port_parent(to_of_node(fwnode));
- if (node)
- parent = &node->fwnode;
- } else if (is_acpi_node(fwnode)) {
- int ret;
-
- ret = acpi_graph_get_remote_endpoint(fwnode, &parent, NULL,
- NULL);
- if (ret)
- return NULL;
- }
+ fwnode_handle_put(port);
return parent;
}
@@ -1213,23 +1186,7 @@ EXPORT_SYMBOL_GPL(fwnode_graph_get_remote_port_parent);
*/
struct fwnode_handle *fwnode_graph_get_remote_port(struct fwnode_handle *fwnode)
{
- struct fwnode_handle *port = NULL;
-
- if (is_of_node(fwnode)) {
- struct device_node *node;
-
- node = of_graph_get_remote_port(to_of_node(fwnode));
- if (node)
- port = &node->fwnode;
- } else if (is_acpi_node(fwnode)) {
- int ret;
-
- ret = acpi_graph_get_remote_endpoint(fwnode, NULL, &port, NULL);
- if (ret)
- return NULL;
- }
-
- return port;
+ return fwnode_get_next_parent(fwnode_graph_get_remote_endpoint(fwnode));
}
EXPORT_SYMBOL_GPL(fwnode_graph_get_remote_port);
@@ -1242,25 +1199,7 @@ EXPORT_SYMBOL_GPL(fwnode_graph_get_remote_port);
struct fwnode_handle *
fwnode_graph_get_remote_endpoint(struct fwnode_handle *fwnode)
{
- struct fwnode_handle *endpoint = NULL;
-
- if (is_of_node(fwnode)) {
- struct device_node *node;
-
- node = of_parse_phandle(to_of_node(fwnode), "remote-endpoint",
- 0);
- if (node)
- endpoint = &node->fwnode;
- } else if (is_acpi_node(fwnode)) {
- int ret;
-
- ret = acpi_graph_get_remote_endpoint(fwnode, NULL, NULL,
- &endpoint);
- if (ret)
- return NULL;
- }
-
- return endpoint;
+ return fwnode_call_ptr_op(fwnode, graph_get_remote_endpoint);
}
EXPORT_SYMBOL_GPL(fwnode_graph_get_remote_endpoint);
@@ -1276,22 +1215,8 @@ EXPORT_SYMBOL_GPL(fwnode_graph_get_remote_endpoint);
int fwnode_graph_parse_endpoint(struct fwnode_handle *fwnode,
struct fwnode_endpoint *endpoint)
{
- struct fwnode_handle *port_fwnode = fwnode_get_parent(fwnode);
-
memset(endpoint, 0, sizeof(*endpoint));
- endpoint->local_fwnode = fwnode;
-
- if (is_acpi_node(port_fwnode)) {
- fwnode_property_read_u32(port_fwnode, "port", &endpoint->port);
- fwnode_property_read_u32(fwnode, "endpoint", &endpoint->id);
- } else {
- fwnode_property_read_u32(port_fwnode, "reg", &endpoint->port);
- fwnode_property_read_u32(fwnode, "reg", &endpoint->id);
- }
-
- fwnode_handle_put(port_fwnode);
-
- return 0;
+ return fwnode_call_int_op(fwnode, graph_parse_endpoint, endpoint);
}
EXPORT_SYMBOL(fwnode_graph_parse_endpoint);
diff --git a/drivers/of/property.c b/drivers/of/property.c
index bca7167..f0a18ca 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -815,26 +815,14 @@ static int of_fwnode_property_read_string_array(
static struct fwnode_handle *of_fwnode_get_parent(struct fwnode_handle *fwnode)
{
- struct device_node *node;
-
- node = of_get_parent(to_of_node(fwnode));
- if (node)
- return of_fwnode_handle(node);
-
- return NULL;
+ 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, struct fwnode_handle *child)
{
- struct device_node *node;
-
- node = of_get_next_available_child(to_of_node(fwnode),
- to_of_node(child));
- if (node)
- return of_fwnode_handle(node);
-
- return NULL;
+ return of_fwnode_handle(of_get_next_available_child(to_of_node(fwnode),
+ to_of_node(child)));
}
static struct fwnode_handle *of_fwnode_get_named_child_node(
@@ -850,6 +838,53 @@ static struct fwnode_handle *of_fwnode_get_named_child_node(
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,
@@ -859,4 +894,8 @@ 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,
};
diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h
index e05aaef..6c91243 100644
--- a/include/linux/fwnode.h
+++ b/include/linux/fwnode.h
@@ -57,6 +57,11 @@ struct fwnode_endpoint {
* @get_parent: Return the parent of an fwnode.
* @get_next_child_node: Return the next child node in an iteration.
* @get_named_child_node: Return a child node with a given name.
+ * @graph_get_next_endpoint: Return an endpoint node in an iteration.
+ * @graph_get_remote_endpoint: Return the remote endpoint node of a local
+ * endpoint node.
+ * @graph_get_port_parent: Return the parent node of a port node.
+ * @graph_parse_endpoint: Parse endpoint for port and endpoint id.
*/
struct fwnode_operations {
void (*get)(struct fwnode_handle *fwnode);
@@ -75,6 +80,14 @@ struct fwnode_operations {
struct fwnode_handle *fwnode, struct fwnode_handle *child);
struct fwnode_handle *(*get_named_child_node)(
struct fwnode_handle *fwnode, const char *name);
+ struct fwnode_handle *(*graph_get_next_endpoint)(
+ struct fwnode_handle *fwnode, struct fwnode_handle *prev);
+ struct fwnode_handle *(*graph_get_remote_endpoint)(
+ struct fwnode_handle *fwnode);
+ struct fwnode_handle *(*graph_get_port_parent)(
+ struct fwnode_handle *fwnode);
+ int (*graph_parse_endpoint)(struct fwnode_handle *fwnode,
+ struct fwnode_endpoint *endpoint);
};
#define fwnode_has_op(fwnode, op) \
--
2.7.4
--
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