linux-kernel - Re: [PATCHv4 9/9] ASoC: dt-bindings: fsl-asoc-card: add compatible for generic codec

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Message-ID: <ce9a87c6-4a5c-4f0a-a8df-1fdce8c1f5df@sirena.org.uk>
Date: Thu, 16 May 2024 13:11:11 +0100
From: Mark Brown <broonie@...nel.org>
To: Elinor Montmasson <elinor.montmasson@...oirfairelinux.com>
Cc: Liam Girdwood <lgirdwood@...il.com>, Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Shengjiu Wang <shengjiu.wang@...il.com>,
	Xiubo Li <Xiubo.Lee@...il.com>, Fabio Estevam <festevam@...il.com>,
	Nicolin Chen <nicoleotsuka@...il.com>,
	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
	linux-sound@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, alsa-devel@...a-project.org,
	linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCHv4 9/9] ASoC: dt-bindings: fsl-asoc-card: add compatible
 for generic codec

On Wed, May 15, 2024 at 03:54:11PM +0200, Elinor Montmasson wrote:

> Add documentation about new dts bindings following new support
> for compatible "fsl,imx-audio-generic".

>    audio-codec:
> -    $ref: /schemas/types.yaml#/definitions/phandle
> -    description: The phandle of an audio codec
> +    $ref: /schemas/types.yaml#/definitions/phandle-array
> +    description: |
> +      The phandle of an audio codec.
> +      If using the "fsl,imx-audio-generic" compatible, give instead a pair of
> +      phandles with the spdif_transmitter first (driver SPDIF DIT) and the
> +      spdif_receiver second (driver SPDIF DIR).
> +    items:
> +      maxItems: 1

This description (and the code) don't feel like they're actually generic
- they're clearly specific to the bidrectional S/PDIF case.  I'd expect
something called -generic to cope with single CODECs as well as double,
and not to have any constraints on what those are.

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