1 files changed, 4 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/sound/simple-card.txt b/Documentation/devicetree/bindings/sound/simple-card.txt
index c2e9841dfce4..c3cba600bf11 100644
--- a/Documentation/devicetree/bindings/sound/simple-card.txt
+++ b/Documentation/devicetree/bindings/sound/simple-card.txt
@@ -17,6 +17,10 @@ Optional properties:
                                           source.
 - simple-audio-card,mclk-fs             : Multiplication factor between stream rate and codec
                                           mclk.
+- simple-audio-card,hp-det-gpio         : Reference to GPIO that signals when
+                                          headphones are attached.
+- simple-audio-card,mic-det-gpio        : Reference to GPIO that signals when
+                                          a microphone is attached.
 
 Optional subnodes: