| Message ID | 20230801082433.548206-3-daniel.baluta@oss.nxp.com |
|---|---|
| State | New |
| Headers | show |
| Series | ASoC: simple-card: Introduce playback-only/capture-only DAI link flags | expand |
On Fri, Aug 11, 2023 at 01:12:36PM -0600, Rob Herring wrote: > On Tue, Aug 01, 2023 at 11:24:33AM +0300, Daniel Baluta wrote: > > + playback-only: > > + description: dai-link is used only for playback > > + $ref: /schemas/types.yaml#/definitions/flag > > + capture-only: > > + description: dai-link is used only for capture > > + $ref: /schemas/types.yaml#/definitions/flag > Wouldn't this be implicit based on limitations in the either the cpu or > codec DAI? You can see cases where people just don't connect some of the signals for whatever reason so even if the two devices could do bidrectional audio the board can't, and there are also cases like the at91sam9g20ek where the DAI is connected for bidrectional audio but there's not actually any audio inputs you can connect (even loopbacks) for one of the directions so it's best to just mask things out from the user.
diff --git a/Documentation/devicetree/bindings/sound/simple-card.yaml b/Documentation/devicetree/bindings/sound/simple-card.yaml index 59ac2d1d1ccf..1bf331f095a4 100644 --- a/Documentation/devicetree/bindings/sound/simple-card.yaml +++ b/Documentation/devicetree/bindings/sound/simple-card.yaml @@ -27,6 +27,14 @@ definitions: description: dai-link uses bit clock inversion $ref: /schemas/types.yaml#/definitions/flag + playback-only: + description: dai-link is used only for playback + $ref: /schemas/types.yaml#/definitions/flag + + capture-only: + description: dai-link is used only for capture + $ref: /schemas/types.yaml#/definitions/flag + dai-tdm-slot-num: description: see tdm-slot.txt. $ref: /schemas/types.yaml#/definitions/uint32