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

[Fabio Estevam]

On Mon, Oct 5, 2020 at 8:16 AM Primoz Fiser <primoz.fiser at norik.com> wrote:
>
> 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

It would be good to mention what is the default mode when such
property is absent.