diff --git a/Documentation/devicetree/bindings/sound/ak5386.txt b/Documentation/devicetree/bindings/sound/ak5386.txt
index dc3914fe6ce8b423fe8f220eb98bad0d3a21348a..ec3df3abba0cf06dec5252b8564a35c1efd7aa0a 100644
--- a/Documentation/devicetree/bindings/sound/ak5386.txt
+++ b/Documentation/devicetree/bindings/sound/ak5386.txt
@@ -10,10 +10,14 @@ Optional properties:
 
   - reset-gpio : a GPIO spec for the reset/power down pin.
 		 If specified, it will be deasserted at probe time.
+  - va-supply : a regulator spec, providing 5.0V
+  - vd-supply : a regulator spec, providing 3.3V
 
 Example:
 
 spdif: ak5386@0 {
 	compatible = "asahi-kasei,ak5386";
 	reset-gpio = <&gpio0 23>;
+	va-supply = <&vdd_5v0_reg>;
+	vd-supply = <&vdd_3v3_reg>;
 };
diff --git a/sound/soc/codecs/ak5386.c b/sound/soc/codecs/ak5386.c
index a30be5ce3fa42b6ceb6c8ba854f4e9b1d65034c8..8107a1cac8764bf8e81ce391ec212a8e72aa0299 100644
--- a/sound/soc/codecs/ak5386.c
+++ b/sound/soc/codecs/ak5386.c
@@ -19,7 +19,7 @@
 #include <sound/pcm.h>
 #include <sound/initval.h>
 
-static const char const *supply_names[] = {
+static const char * const supply_names[] = {
 	"va", "vd"
 };