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| author | Pantelis Antoniou <pantelis.antoniou@konsulko.com> | 2014-07-04 18:58:47 +0200 |
|---|---|---|
| committer | Grant Likely <grant.likely@linaro.org> | 2014-07-16 16:16:17 +0200 |
| commit | 698433963b98d6de7b102c242805c99fda4fa1fb (patch) | |
| tree | 05a223f160742f6659e47cd5accc245934c941ef /drivers/of/of_private.h | |
| parent | of: Move CONFIG_OF_DYNAMIC code into a separate file (diff) | |
| download | linux-698433963b98d6de7b102c242805c99fda4fa1fb.tar.xz linux-698433963b98d6de7b102c242805c99fda4fa1fb.zip | |
OF: Utility helper functions for dynamic nodes
Introduce helper functions for working with the live DT tree,
all of them related to dynamically adding/removing nodes and
properties.
__of_prop_dup() copies a property dynamically
__of_node_alloc() creates an empty node
Bug fix about prop->len == 0 by Ionut Nicu <ioan.nicu.ext@nsn.com>
Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
[glikely: Added unittest for of_copy_property and dropped fine-grained allocations]
[glikely: removed name, type and phandle arguments from __of_node_alloc]
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Diffstat (limited to 'drivers/of/of_private.h')
| -rw-r--r-- | drivers/of/of_private.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/of/of_private.h b/drivers/of/of_private.h index c270f2037779..1799ed2b3808 100644 --- a/drivers/of/of_private.h +++ b/drivers/of/of_private.h @@ -51,4 +51,14 @@ static inline int of_property_notify(int action, struct device_node *np, } #endif /* CONFIG_OF_DYNAMIC */ +/** + * General utilities for working with live trees. + * + * All functions with two leading underscores operate + * without taking node references, so you either have to + * own the devtree lock or work on detached trees only. + */ +struct property *__of_prop_dup(const struct property *prop, gfp_t allocflags); +struct device_node *__of_node_alloc(const char *full_name, gfp_t allocflags); + #endif /* _LINUX_OF_PRIVATE_H */ |