ASoC: cs42xx8: add reset-gpios in binding document

Add reset-gpios property, which is optional.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/Documentation/devicetree/bindings/sound/cs42xx8.txt b/Documentation/devicetree/bindings/sound/cs42xx8.txt
index 8619a156d038bdd76e342351fe83af63b4105746..bbfe39347c206e791268ffdbd0d2fe22a3ea8092 100644 (file)
--- a/Documentation/devicetree/bindings/sound/cs42xx8.txt
+++ b/Documentation/devicetree/bindings/sound/cs42xx8.txt
@@ -14,6 +14,11 @@ Required properties:
   - VA-supply, VD-supply, VLS-supply, VLC-supply: power supplies for the device,
     as covered in Documentation/devicetree/bindings/regulator/regulator.txt
 
+Optional properties:
+
+  - reset-gpios : a GPIO spec to define which pin is connected to the chip's
+    !RESET pin
+
 Example:
 
 cs42888: codec@48 {
@@ -25,4 +30,5 @@ cs42888: codec@48 {
        VD-supply = <&reg_audio>;
        VLS-supply = <&reg_audio>;
        VLC-supply = <&reg_audio>;
+       reset-gpios = <&pca9557_b 1 GPIO_ACTIVE_LOW>;
 };