diff --git a/doc/device-tree-bindings/sound/intel-hda.txt b/doc/device-tree-bindings/sound/intel-hda.txt
index fb2ce550063..aa96be06e9b 100644
--- a/doc/device-tree-bindings/sound/intel-hda.txt
+++ b/doc/device-tree-bindings/sound/intel-hda.txt
@@ -12,6 +12,7 @@ Required properties:
 
 Optional properties
 - intel,beep-nid: Node ID to use for beep (will be detected if not provided)
+- codec-enable-gpio : The GPIO used to enable the audio codec
 
 Required subnodes:
 - codecs: Contains a list of codec nodes
diff --git a/doc/device-tree-bindings/sound/nvidia,tegra-audio-max98090.txt b/doc/device-tree-bindings/sound/nvidia,tegra-audio-max98090.txt
index c3495beba35..25c63eac628 100644
--- a/doc/device-tree-bindings/sound/nvidia,tegra-audio-max98090.txt
+++ b/doc/device-tree-bindings/sound/nvidia,tegra-audio-max98090.txt
@@ -27,6 +27,7 @@ Required properties:
 Optional properties:
 - nvidia,hp-det-gpios : The GPIO that detect headphones are plugged in
 - nvidia,mic-det-gpios : The GPIO that detect microphones are plugged in
+- codec-enable-gpio : The GPIO used to enable the audio codec
 
 Example:
 
diff --git a/doc/device-tree-bindings/sound/snow.txt b/doc/device-tree-bindings/sound/snow.txt
index 80fd9a87bb3..fa06956e772 100644
--- a/doc/device-tree-bindings/sound/snow.txt
+++ b/doc/device-tree-bindings/sound/snow.txt
@@ -19,6 +19,7 @@ Required sub-nodes:
 
 Optional:
 - samsung,model: The name of the sound-card
+- codec-enable-gpio : The GPIO used to enable the audio codec
 
 Example: