[PATCH v3 1/5] ASoC: dt-bindings: fsl,imx-asrc: update port binding to support multiple paths

[Frank Li]

On Mon, Aug 10, 2026 at 09:12:20AM +0200, Krzysztof Kozlowski wrote:
> On Tue, Aug 04, 2026 at 09:39:07AM -0500, Frank Li wrote:
> > On Tue, Aug 04, 2026 at 06:02:14PM +0800, shengjiu.wang at oss.nxp.com wrote:
> > > From: Shengjiu Wang <shengjiu.wang at nxp.com>
> > >
> > > The i.MX ASRC hardware supports up to three conversion pairs (A, B, C).
> > > The existing binding exposed only a single generic audio-graph port,
> > > which cannot represent independent conversion paths when multiple pairs
> > > are in use simultaneously.
> > >
> > > Add a ports container that enumerates up to three sub-ports, each
> > > representing an independent conversion path:
> > >   port at 0 -- conversion path 0
> > >   port at 1 -- conversion path 1
> > >   port at 2 -- conversion path 2
> > >
> > > Each sub-port references audio-graph-port.yaml as before. Hardware pairs
> > > are allocated dynamically at stream open time; each active stream
> > > direction (playback or capture) on a port consumes one hardware pair.
> > >
> > > For backwards compatibility, keep the old single port property but mark
> > > it deprecated. A schema constraint (not: required: [port, ports]) ensures
> > > that both forms cannot be used at the same time. The binding example is
> > > updated to show the preferred ports form.
> > >
> > > No existing upstream DTS file for fsl,imx-asrc uses the previously
> > > documented single 'port' node, so this change does not break any
> > > in-tree device tree.
> >
> > if no existing upstream DTS file use it, you can direct replace with ports
>
> And what about all other users of this binding?

Kernel is that only known user. Uboot don't use this part.

Frank

>
> Best regards,
> Krzysztof
>