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| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2017-03-28 10:52:19 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-03-29 00:00:28 +0200 |
| commit | 21ea73f54c6d77f35381c79870160496c9e78b60 (patch) | |
| tree | c5407805fccd273e7bb38f6ac75a25fb107405b9 /drivers/base/property.c | |
| parent | 34055190b19d7c634caf738c8ca195cad06550cd (diff) | |
| download | lwn-21ea73f54c6d77f35381c79870160496c9e78b60.tar.gz lwn-21ea73f54c6d77f35381c79870160496c9e78b60.zip | |
device property: Add fwnode_get_named_child_node()
Since now we have means to enumerate all children of any fwnode even in
ACPI we can implement fwnode_get_named_child_node(). This is similar than
device_get_named_child_node() with the exception that it can be called to
any fwnode handle. Make device_get_named_child_node() call directly this
new function.
This is useful in cases where we need to be able to find child nodes which
are not direct descendants of the parent device.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/base/property.c')
| -rw-r--r-- | drivers/base/property.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/drivers/base/property.c b/drivers/base/property.c index bc0f07ac48f6..538b248d5dcf 100644 --- a/drivers/base/property.c +++ b/drivers/base/property.c @@ -1000,20 +1000,20 @@ struct fwnode_handle *device_get_next_child_node(struct device *dev, EXPORT_SYMBOL_GPL(device_get_next_child_node); /** - * device_get_named_child_node - Return first matching named child node handle - * @dev: Device to find the named child node for. + * fwnode_get_named_child_node - Return first matching named child node handle + * @fwnode: Firmware node to find the named child node for. * @childname: String to match child node name against. */ -struct fwnode_handle *device_get_named_child_node(struct device *dev, +struct fwnode_handle *fwnode_get_named_child_node(struct fwnode_handle *fwnode, const char *childname) { struct fwnode_handle *child; /* - * Find first matching named child node of this device. + * Find first matching named child node of this fwnode. * For ACPI this will be a data only sub-node. */ - device_for_each_child_node(dev, child) { + fwnode_for_each_child_node(fwnode, child) { if (is_of_node(child)) { if (!of_node_cmp(to_of_node(child)->name, childname)) return child; @@ -1025,6 +1025,18 @@ struct fwnode_handle *device_get_named_child_node(struct device *dev, return NULL; } +EXPORT_SYMBOL_GPL(fwnode_get_named_child_node); + +/** + * device_get_named_child_node - Return first matching named child node handle + * @dev: Device to find the named child node for. + * @childname: String to match child node name against. + */ +struct fwnode_handle *device_get_named_child_node(struct device *dev, + const char *childname) +{ + return fwnode_get_named_child_node(dev_fwnode(dev), childname); +} EXPORT_SYMBOL_GPL(device_get_named_child_node); /** |