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Date:   Mon, 8 Nov 2021 15:04:44 -0600
From:   Rob Herring <robh@kernel.org>
To:     David Heidelberg <david@ixit.cz>
Cc:     Liam Girdwood <lgirdwood@gmail.com>,
        Mark Brown <broonie@kernel.org>, - <kernel@puri.sm>,
        ~okias/devicetree@lists.sr.ht, phone-devel@vger.kernel.org,
        alsa-devel@alsa-project.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] dt-bindings: sound: gtm601: convert to YAML
Message-ID: <YYmQ7OCIIb2AbnjY@robh.at.kernel.org>
References: <20211030121753.50191-1-david@ixit.cz>
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On Sat, Oct 30, 2021 at 02:17:52PM +0200, David Heidelberg wrote:
> Convert GTM601 binding to the YAML format.
> 
> Signed-off-by: David Heidelberg <david@ixit.cz>
> ---
> v2:
>  - add #sound-dai-cells
>  - put kernel@puri.sm into maintainers
> 
>  .../devicetree/bindings/sound/gtm601.txt      | 19 ----------
>  .../devicetree/bindings/sound/gtm601.yaml     | 36 +++++++++++++++++++
>  2 files changed, 36 insertions(+), 19 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/sound/gtm601.txt
>  create mode 100644 Documentation/devicetree/bindings/sound/gtm601.yaml
> 
> diff --git a/Documentation/devicetree/bindings/sound/gtm601.txt b/Documentation/devicetree/bindings/sound/gtm601.txt
> deleted file mode 100644
> index efa32a486c4a..000000000000
> --- a/Documentation/devicetree/bindings/sound/gtm601.txt
> +++ /dev/null
> @@ -1,19 +0,0 @@
> -GTM601 UMTS modem audio interface CODEC
> -
> -This device has no configuration interface. The sample rate and channels are
> -based on the compatible string
> -	"option,gtm601" = 8kHz mono
> -	"broadmobi,bm818" = 48KHz stereo
> -
> -Required properties:
> -
> -  - compatible : one of
> -	"option,gtm601"
> -	"broadmobi,bm818"
> -
> -
> -Example:
> -
> -codec: gtm601_codec {
> -	compatible = "option,gtm601";
> -};
> diff --git a/Documentation/devicetree/bindings/sound/gtm601.yaml b/Documentation/devicetree/bindings/sound/gtm601.yaml
> new file mode 100644
> index 000000000000..e81a6aa75522
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/gtm601.yaml
> @@ -0,0 +1,36 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/sound/gtm601.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: GTM601 UMTS modem audio interface CODEC
> +
> +maintainers:
> +  - kernel@puri.sm
> +
> +description: >
> +  This device has no configuration interface. The sample rate and channels are
> +  based on the compatible string
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:
> +          - const: broadmobi,bm818
> +          - const: option,gtm601

This does not match what the binding originally said. And generally this 
combined with the one below should never be valid.

> +      - items:
> +          - enum:
> +              - broadmobi,bm818  # 48 kHz stereo
> +              - option,gtm601  # 8 kHz mono
> +
> +  '#sound-dai-cells':
> +    const: 0
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    gtm601_codec {
> +        compatible = "option,gtm601";
> +    };
> -- 
> 2.33.0
> 
>