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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>
zero-colors
Sakari Ailus 2017-06-06 12:37:38 +03:00 committed by Rafael J. Wysocki
parent 3708184afc
commit 3b27d00e7b
4 changed files with 114 additions and 83 deletions
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40
drivers/acpi/property.c
View File

@ -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,
};

91
drivers/base/property.c
View File

@ -1156,24 +1156,7 @@ 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);
@ -1186,22 +1169,12 @@ 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;
}
@ -1215,23 +1188,7 @@ 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);
@ -1244,25 +1201,7 @@ 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);
@ -1278,22 +1217,8 @@ 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);

52
drivers/of/property.c
View File

@ -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,
};

14
include/linux/fwnode.h
View File

@ -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);
@ -76,6 +81,15 @@ struct fwnode_operations {
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) \