diff options
Diffstat (limited to 'include/of.h')
| -rw-r--r-- | include/of.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/include/of.h b/include/of.h index d548e51789..08a02e1105 100644 --- a/include/of.h +++ b/include/of.h @@ -201,6 +201,11 @@ extern int of_property_read_u32_array(const struct device_node *np, extern int of_property_read_u64(const struct device_node *np, const char *propname, u64 *out_value); +extern int of_property_read_variable_u64_array(const struct device_node *np, + const char *propname, + u64 *out_values, + size_t sz); + extern int of_property_read_string(struct device_node *np, const char *propname, const char **out_string); @@ -231,6 +236,8 @@ extern int of_property_write_u64_array(struct device_node *np, size_t sz); extern int of_property_write_string(struct device_node *np, const char *propname, const char *value); +extern int of_property_write_strings(struct device_node *np, const char *propname, + ...) __attribute__((__sentinel__)); extern struct device_node *of_parse_phandle(const struct device_node *np, const char *phandle_name, @@ -252,6 +259,8 @@ extern int of_modalias_node(struct device_node *node, char *modalias, int len); extern struct device_node *of_get_root_node(void); extern int of_set_root_node(struct device_node *node); +extern void barebox_register_of(struct device_node *root); +extern void barebox_register_fdt(const void *dtb); extern struct device_d *of_platform_device_create(struct device_node *np, struct device_d *parent); @@ -465,6 +474,14 @@ static inline int of_property_read_u64(const struct device_node *np, return -ENOSYS; } +static inline int of_property_read_variable_u64_array(const struct device_node *np, + const char *propname, + u64 *out_values, + size_t sz) +{ + return -ENOSYS; +} + static inline int of_property_read_string(struct device_node *np, const char *propname, const char **out_string) { @@ -732,6 +749,8 @@ static inline int of_autoenable_i2c_by_component(char *path) #endif +#define for_each_property_of_node(dn, pp) \ + list_for_each_entry(pp, &dn->properties, list) #define for_each_node_by_name(dn, name) \ for (dn = of_find_node_by_name(NULL, name); dn; \ dn = of_find_node_by_name(dn, name)) @@ -875,6 +894,34 @@ static inline int of_property_read_u32(const struct device_node *np, return of_property_read_u32_array(np, propname, out_value, 1); } +/** + * of_property_read_u64_array - Find and read an array of 64 bit integers + * from a property. + * + * @np: device node from which the property value is to be read. + * @propname: name of the property to be searched. + * @out_values: pointer to return value, modified only if return value is 0. + * @sz: number of array elements to read + * + * Search for a property in a device node and read 64-bit value(s) from + * it. Returns 0 on success, -EINVAL if the property does not exist, + * -ENODATA if property does not have a value, and -EOVERFLOW if the + * property data isn't large enough. + * + * The out_values is modified only if a valid u64 value can be decoded. + */ +static inline int of_property_read_u64_array(const struct device_node *np, + const char *propname, + u64 *out_values, size_t sz) +{ + int ret = of_property_read_variable_u64_array(np, propname, out_values, + sz); + if (ret >= 0) + return 0; + else + return ret; +} + /* * struct property *prop; * const __be32 *p; |