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-rw-r--r--drivers/of/base.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/of/base.c b/drivers/of/base.c
index a4b608776c73..7792266db259 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -502,6 +502,28 @@ int of_device_is_compatible(const struct device_node *device,
}
EXPORT_SYMBOL(of_device_is_compatible);
+/** Checks if the device is compatible with any of the entries in
+ * a NULL terminated array of strings. Returns the best match
+ * score or 0.
+ */
+int of_device_compatible_match(struct device_node *device,
+ const char *const *compat)
+{
+ unsigned int tmp, score = 0;
+
+ if (!compat)
+ return 0;
+
+ while (*compat) {
+ tmp = of_device_is_compatible(device, *compat);
+ if (tmp > score)
+ score = tmp;
+ compat++;
+ }
+
+ return score;
+}
+
/**
* 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.