diff options
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/base.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/of/base.c b/drivers/of/base.c index ec56739eb247..dba995b70b84 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -144,6 +144,27 @@ int of_device_is_compatible(const struct device_node *device, EXPORT_SYMBOL(of_device_is_compatible); /** + * 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. + * + * Returns true if the root node has the given value in its + * compatible property. + */ +int machine_is_compatible(const char *compat) +{ + struct device_node *root; + int rc = 0; + + root = of_find_node_by_path("/"); + if (root) { + rc = of_device_is_compatible(root, compat); + of_node_put(root); + } + return rc; +} +EXPORT_SYMBOL(machine_is_compatible); + +/** * of_device_is_available - check if a device is available for use * * @device: Node to check for availability |