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-rw-r--r--drivers/of/base.c21
1 files changed, 21 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.
*