[PATCH 2/2] ASoC: dt-bindings: fsl: add ac97 fixed mode support

[Primoz Fiser]

Add devicetree bindings documentation for operating SSI in AC'97
variable/fixed mode of operation.

Signed-off-by: Primoz Fiser <primoz.fiser at norik.com>
---
 Documentation/devicetree/bindings/sound/fsl,ssi.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/fsl,ssi.txt b/Documentation/devicetree/bindings/sound/fsl,ssi.txt
index 7e15a85cecd2..abc5abe11fb9 100644
--- a/Documentation/devicetree/bindings/sound/fsl,ssi.txt
+++ b/Documentation/devicetree/bindings/sound/fsl,ssi.txt
@@ -43,6 +43,11 @@ Optional properties:
 - fsl,mode:         The operating mode for the AC97 interface only.
                     "ac97-slave" - AC97 mode, SSI is clock slave
                     "ac97-master" - AC97 mode, SSI is clock master
+- fsl,ac97-mode:    SSI AC97 mode of operation.
+                    "variable" - AC97 Variable Mode, SLOTREQ bits determine
+                    next receive/transmit frame
+                    "fixed" - AC97 Fixed Mode, SSI transmits in accordance with
+                    AC97 Frame Rate Divider bits
 - fsl,ssi-asynchronous:
                     If specified, the SSI is to be programmed in asynchronous
                     mode.  In this mode, pins SRCK, STCK, SRFS, and STFS must
-- 
2.25.1