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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>
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parent
34055190b1
commit
21ea73f54c
2 changed files with 19 additions and 5 deletions
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@ -1000,20 +1000,20 @@ struct fwnode_handle *device_get_next_child_node(struct device *dev,
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EXPORT_SYMBOL_GPL(device_get_next_child_node);
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/**
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* device_get_named_child_node - Return first matching named child node handle
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* @dev: Device to find the named child node for.
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* fwnode_get_named_child_node - Return first matching named child node handle
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* @fwnode: Firmware node to find the named child node for.
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* @childname: String to match child node name against.
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*/
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struct fwnode_handle *device_get_named_child_node(struct device *dev,
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struct fwnode_handle *fwnode_get_named_child_node(struct fwnode_handle *fwnode,
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const char *childname)
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{
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struct fwnode_handle *child;
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/*
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* Find first matching named child node of this device.
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* Find first matching named child node of this fwnode.
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* For ACPI this will be a data only sub-node.
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*/
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device_for_each_child_node(dev, child) {
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fwnode_for_each_child_node(fwnode, child) {
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if (is_of_node(child)) {
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if (!of_node_cmp(to_of_node(child)->name, childname))
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return child;
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@ -1025,6 +1025,18 @@ struct fwnode_handle *device_get_named_child_node(struct device *dev,
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return NULL;
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}
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EXPORT_SYMBOL_GPL(fwnode_get_named_child_node);
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/**
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* device_get_named_child_node - Return first matching named child node handle
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* @dev: Device to find the named child node for.
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* @childname: String to match child node name against.
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*/
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struct fwnode_handle *device_get_named_child_node(struct device *dev,
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const char *childname)
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{
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return fwnode_get_named_child_node(dev_fwnode(dev), childname);
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}
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EXPORT_SYMBOL_GPL(device_get_named_child_node);
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/**
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@ -85,6 +85,8 @@ struct fwnode_handle *device_get_next_child_node(struct device *dev,
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for (child = device_get_next_child_node(dev, NULL); child; \
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child = device_get_next_child_node(dev, child))
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struct fwnode_handle *fwnode_get_named_child_node(struct fwnode_handle *fwnode,
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const char *childname);
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struct fwnode_handle *device_get_named_child_node(struct device *dev,
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const char *childname);
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