Add devicetree bindings documentation for operating SSI in AC'97
variable/fixed mode of operation.
Signed-off-by: Primoz Fiser <primoz.fiser@xxxxxxxxx>
---
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
