diff options
| -rw-r--r-- | drivers/of/base.c | 21 | ||||
| -rw-r--r-- | include/linux/of.h | 6 |
2 files changed, 27 insertions, 0 deletions
diff --git a/drivers/of/base.c b/drivers/of/base.c index b0ad8fc06e80..3c85afb2697c 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -395,6 +395,27 @@ int of_device_compatible_match(const struct device_node *device, EXPORT_SYMBOL_GPL(of_device_compatible_match); /** + * of_machine_compatible_match - Test root of device tree against a compatible array + * @compats: NULL terminated array of compatible strings to look for in root node's compatible property. + * + * Returns true if the root node has any of the given compatible values in its + * compatible property. + */ +bool of_machine_compatible_match(const char *const *compats) +{ + struct device_node *root; + int rc = 0; + + root = of_find_node_by_path("/"); + if (root) { + rc = of_device_compatible_match(root, compats); + of_node_put(root); + } + + return rc != 0; +} + +/** * of_machine_is_compatible - Test root of device tree for a given compatible value * @compat: compatible string to look for in root node's compatible property. * diff --git a/include/linux/of.h b/include/linux/of.h index 6a9ddf20e79a..e3418babc203 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -403,6 +403,7 @@ extern int of_alias_get_id(struct device_node *np, const char *stem); extern int of_alias_get_highest_id(const char *stem); extern int of_machine_is_compatible(const char *compat); +bool of_machine_compatible_match(const char *const *compats); extern int of_add_property(struct device_node *np, struct property *prop); extern int of_remove_property(struct device_node *np, struct property *prop); @@ -808,6 +809,11 @@ static inline int of_remove_property(struct device_node *np, struct property *pr return 0; } +static inline bool of_machine_compatible_match(const char *const *compats) +{ + return false; +} + static inline bool of_console_check(const struct device_node *dn, const char *name, int index) { return false; |