Export fdt_stringlist_contains()

This function is useful outside libfdt, so export it.

Ref: DTC commit b7aa300e

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>

1 files changed, 14 insertions, 0 deletions

diff --git a/include/libfdt.h b/include/libfdt.h
index fc7f75b9ffa..b153cc31bfb 100644
--- a/include/libfdt.h
+++ b/include/libfdt.h
@@ -816,6 +816,20 @@ int fdt_node_check_compatible(const void *fdt, int nodeoffset,
 int fdt_node_offset_by_compatible(const void *fdt, int startoffset,
 				  const char *compatible);
 
+/**
+ * fdt_stringlist_contains - check a string list property for a string
+ * @strlist: Property containing a list of strings to check
+ * @listlen: Length of property
+ * @str: String to search for
+ *
+ * This is a utility function provided for convenience. The list contains
+ * one or more strings, each terminated by \0, as is found in a device tree
+ * "compatible" property.
+ *
+ * @return: 1 if the string is found in the list, 0 not found, or invalid list
+ */
+int fdt_stringlist_contains(const char *strlist, int listlen, const char *str);
+
 /**********************************************************************/
 /* Write-in-place functions                                           */
 /**********************************************************************/