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| author | Thomas Abraham <thomas.abraham@linaro.org> | 2011-06-30 21:26:10 +0530 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2011-06-30 13:02:10 -0600 |
| commit | a3b853633d78c3930b513ee219df48637ac82eed (patch) | |
| tree | 30d36c4b3e03db070f72eeaeed3f2d1dd1da159b /include/linux/of.h | |
| parent | 7423734e19e7e0a90e3379152eacca2647f4377e (diff) | |
| download | linux-a3b853633d78c3930b513ee219df48637ac82eed.tar.gz linux-a3b853633d78c3930b513ee219df48637ac82eed.tar.bz2 linux-a3b853633d78c3930b513ee219df48637ac82eed.zip | |
dt: add helper functions to read u32 and string property values
Add helper functions to retrieve unsigned integer and string property
values from properties of a device node. These helper functions can be
used to lookup a property in a device node, perform error checking and
read the property value.
[grant.likely@secretlab.ca: Proposal and initial implementation]
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
[grant.likely: some word smithing and be more defensive validating the string]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'include/linux/of.h')
| -rw-r--r-- | include/linux/of.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/of.h b/include/linux/of.h index bfc0ed1b0ced..4fc4c1b8d5d5 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -195,6 +195,10 @@ extern struct device_node *of_find_node_with_property( extern struct property *of_find_property(const struct device_node *np, const char *name, int *lenp); +extern int of_property_read_u32(struct device_node *np, char *propname, + u32 *out_value); +extern int of_property_read_string(struct device_node *np, char *propname, + char **out_string); extern int of_device_is_compatible(const struct device_node *device, const char *); extern int of_device_is_available(const struct device_node *device); |