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author | Tom Rini <trini@konsulko.com> | 2017-07-11 20:28:46 -0400 |
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committer | Tom Rini <trini@konsulko.com> | 2017-07-11 20:28:46 -0400 |
commit | 8d3a25685e4aac7070365a2b3c53c2c81b27930f (patch) | |
tree | 7956bf5e00e3490169a7fc41c42a4416da8db51f /include/dm/of_access.h | |
parent | d43ef73bf26614af9b01fd57baa1a1fcf24bfade (diff) | |
parent | 8c9eaadaaad888e0cd77512553d0d02d476b4dde (diff) |
Merge git://git.denx.de/u-boot-dm
Diffstat (limited to 'include/dm/of_access.h')
-rw-r--r-- | include/dm/of_access.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/include/dm/of_access.h b/include/dm/of_access.h index 142f0f43c9..c5ea391aec 100644 --- a/include/dm/of_access.h +++ b/include/dm/of_access.h @@ -61,6 +61,26 @@ int of_n_addr_cells(const struct device_node *np); int of_n_size_cells(const struct device_node *np); /** + * of_simple_addr_cells() - Get the address cells property in a node + * + * This function matches fdt_address_cells(). + * + * @np: Node pointer to check + * @return value of #address-cells property in this node, or 2 if none + */ +int of_simple_addr_cells(const struct device_node *np); + +/** + * of_simple_size_cells() - Get the size cells property in a node + * + * This function matches fdt_size_cells(). + * + * @np: Node pointer to check + * @return value of #size-cells property in this node, or 2 if none + */ +int of_simple_size_cells(const struct device_node *np); + +/** * of_find_property() - find a property in a node * * @np: Pointer to device node holding property @@ -261,6 +281,24 @@ static inline int of_property_read_string_index(const struct device_node *np, } /** + * of_property_count_strings() - Find and return the number of strings from a + * multiple strings property. + * @np: device node from which the property value is to be read. + * @propname: name of the property to be searched. + * + * Search for a property in a device tree node and retrieve the number of null + * terminated string contain in it. Returns the number of strings on + * success, -EINVAL if the property does not exist, -ENODATA if property + * does not have a value, and -EILSEQ if the string is not null-terminated + * within the length of the property data. + */ +static inline int of_property_count_strings(const struct device_node *np, + const char *propname) +{ + return of_property_read_string_helper(np, propname, NULL, 0, 0); +} + +/** * of_parse_phandle - Resolve a phandle property to a device_node pointer * @np: Pointer to device node holding phandle property * @phandle_name: Name of property holding a phandle value |