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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-03 18:44:08 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-03 18:44:08 +0200 |
commit | a54dfb1a845c38a97686268d8c4086a63d9493aa (patch) | |
tree | 3b31c81672fa89102aae929cc6c1e48e6e9382f4 /drivers/of/base.c | |
parent | Merge tag 'jfs-3.7' of git://github.com/kleikamp/linux-shaggy (diff) | |
parent | MAINTAINERS: add scripts/dtc under Devicetree maintainers (diff) | |
download | linux-a54dfb1a845c38a97686268d8c4086a63d9493aa.tar.xz linux-a54dfb1a845c38a97686268d8c4086a63d9493aa.zip |
Merge tag 'dt-for-3.7' of git://sources.calxeda.com/kernel/linux
Pull devicetree updates from Rob Herring:
- Import of latest upstream device tree compiler (dtc)
- New function of_get_child_by_name
- Support for #size-cells of 0 and #addr-cells of >2
- Couple of DT binding documentation updates
Fix up trivial conflicts due to of_get_child_by_name() having been added
next to the new of_get_next_available_child().
* tag 'dt-for-3.7' of git://sources.calxeda.com/kernel/linux:
MAINTAINERS: add scripts/dtc under Devicetree maintainers
dtc: import latest upstream dtc
dt: Document general interrupt controller bindings
dt/s3c64xx/spi: Use of_get_child_by_name to get a named child
dt: introduce of_get_child_by_name to get child node by name
of: i2c: add support for wakeup-source property
of/address: Handle #address-cells > 2 specially
DT: export of_irq_to_resource_table()
devicetree: serial: Add documentation for imx serial
devicetree: pwm: mxs-pwm.txt: Fix reg field annotation
of: Allow busses with #size-cells=0
Diffstat (limited to 'drivers/of/base.c')
-rw-r--r-- | drivers/of/base.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/of/base.c b/drivers/of/base.c index d4a1c9a043e1..af3b22ac7627 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -391,6 +391,29 @@ struct device_node *of_get_next_available_child(const struct device_node *node, EXPORT_SYMBOL(of_get_next_available_child); /** + * of_get_child_by_name - Find the child node by name for a given parent + * @node: parent node + * @name: child name to look for. + * + * This function looks for child node for given matching name + * + * Returns a node pointer if found, with refcount incremented, use + * of_node_put() on it when done. + * Returns NULL if node is not found. + */ +struct device_node *of_get_child_by_name(const struct device_node *node, + const char *name) +{ + struct device_node *child; + + for_each_child_of_node(node, child) + if (child->name && (of_node_cmp(child->name, name) == 0)) + break; + return child; +} +EXPORT_SYMBOL(of_get_child_by_name); + +/** * of_find_node_by_path - Find a node matching a full OF path * @path: The full path to match * |