of: Add of_property_match_string() to find index into a string list

Add a helper function for finding the index of a string in a string
list property.  This helper is useful for bindings that use a separate
*-name property for attaching names to tuples in another property such
as 'reg' or 'gpios'.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/testcases/tests-phandle.dtsi b/arch/arm/boot/dts/testcases/tests-phandle.dtsi
index ec0c4e6212c9..0007d3cd7dc2 100644
--- a/arch/arm/boot/dts/testcases/tests-phandle.dtsi
+++ b/arch/arm/boot/dts/testcases/tests-phandle.dtsi
@@ -31,6 +31,8 @@
                                 phandle-list-bad-phandle = <12345678 0 0>;
                                 phandle-list-bad-args = <&provider2 1 0>,
                                                         <&provider3 0>;
+                                empty-property;
+                                unterminated-string = [40 41 42 43];
                         };
                 };
         };