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| author | Tony Prisk <linux@prisktech.co.nz> | 2013-03-23 17:02:15 +1300 |
|---|---|---|
| committer | Tony Prisk <linux@prisktech.co.nz> | 2013-04-04 17:58:59 +1300 |
| commit | 3daf37260e965aa4bb060db99c2ed10b28109e04 (patch) | |
| tree | ea9a0908cf24622b29d21d16e30f995afe17a58a /include/linux/of.h | |
| parent | 8bb9660418e05bb1845ac1a2428444d78e322cc7 (diff) | |
| download | lwn-3daf37260e965aa4bb060db99c2ed10b28109e04.tar.gz lwn-3daf37260e965aa4bb060db99c2ed10b28109e04.zip | |
of: Add support for reading a u32 from a multi-value property.
This patch adds an of_property_read_u32_index() function to allow
reading a single indexed u32 value from a property containing multiple
u32 values.
Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Rob Herring <robherring2@gmail.com>
Diffstat (limited to 'include/linux/of.h')
| -rw-r--r-- | include/linux/of.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/of.h b/include/linux/of.h index a0f129284948..c0747a44eaff 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -235,6 +235,9 @@ 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_index(const struct device_node *np, + const char *propname, + u32 index, u32 *out_value); extern int of_property_read_u8_array(const struct device_node *np, const char *propname, u8 *out_values, size_t sz); extern int of_property_read_u16_array(const struct device_node *np, @@ -394,6 +397,12 @@ static inline struct device_node *of_find_compatible_node( return NULL; } +static inline int of_property_read_u32_index(const struct device_node *np, + const char *propname, u32 index, u32 *out_value) +{ + return -ENOSYS; +} + static inline int of_property_read_u8_array(const struct device_node *np, const char *propname, u8 *out_values, size_t sz) { |