linux-kernel - Re: [PATCH] dt-bindings: sound: Convert Samsung Exynos Odroid XU3/XU4 audio complex to dt-schema

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Date:   Thu, 26 Sep 2019 15:50:20 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Marek Szyprowski <m.szyprowski@...sung.com>
Cc:     devicetree@...r.kernel.org, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Mark Brown <broonie@...nel.org>,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Maciej Falkowski <m.falkowski@...sung.com>
Subject: Re: [PATCH] dt-bindings: sound: Convert Samsung Exynos Odroid
 XU3/XU4 audio complex to dt-schema

On Thu, Sep 26, 2019 at 02:01:11PM +0200, Marek Szyprowski wrote:
> From: Maciej Falkowski <m.falkowski@...sung.com>
> 
> Convert Samsung Exynos Odroid XU3/XU4 audio complex with MAX98090 codec
> to newer dt-schema format.
> 
> 'clocks' property is unneeded in the bindings and is left undefined in 'properties'.
> 
> 'samsung,audio-widgets' and 'samsung,audio-routing' are optional from driver
> perspective and they are set as unrequired.
> 
> Signed-off-by: Maciej Falkowski <m.falkowski@...sung.com>
> Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>
> ---
>  .../bindings/sound/samsung,odroid.txt         | 54 -----------
>  .../bindings/sound/samsung,odroid.yaml        | 91 +++++++++++++++++++
>  2 files changed, 91 insertions(+), 54 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/sound/samsung,odroid.txt
>  create mode 100644 Documentation/devicetree/bindings/sound/samsung,odroid.yaml
> 
> diff --git a/Documentation/devicetree/bindings/sound/samsung,odroid.txt b/Documentation/devicetree/bindings/sound/samsung,odroid.txt
> deleted file mode 100644
> index e9da2200e173..000000000000
> --- a/Documentation/devicetree/bindings/sound/samsung,odroid.txt
> +++ /dev/null
> @@ -1,54 +0,0 @@
> -Samsung Exynos Odroid XU3/XU4 audio complex with MAX98090 codec
> -
> -Required properties:
> -
> - - compatible - "hardkernel,odroid-xu3-audio" - for Odroid XU3 board,
> -		"hardkernel,odroid-xu4-audio" - for Odroid XU4 board (deprecated),
> -		"samsung,odroid-xu3-audio" - for Odroid XU3 board (deprecated),
> -		"samsung,odroid-xu4-audio" - for Odroid XU4 board (deprecated)
> - - model - the user-visible name of this sound complex
> - - clocks - should contain entries matching clock names in the clock-names
> -    property
> - - samsung,audio-widgets - this property specifies off-codec audio elements
> -   like headphones or speakers, for details see widgets.txt
> - - samsung,audio-routing - a list of the connections between audio
> -   components;  each entry is a pair of strings, the first being the
> -   connection's sink, the second being the connection's source;
> -   valid names for sources and sinks are the MAX98090's pins (as
> -   documented in its binding), and the jacks on the board
> -
> -   For Odroid X2:
> -     "Headphone Jack", "Mic Jack", "DMIC"
> -
> -   For Odroid U3, XU3:
> -     "Headphone Jack", "Speakers"
> -
> -   For Odroid XU4:
> -     no entries
> -
> -Required sub-nodes:
> -
> - - 'cpu' subnode with a 'sound-dai' property containing the phandle of the I2S
> -    controller
> - - 'codec' subnode with a 'sound-dai' property containing list of phandles
> -    to the CODEC nodes, first entry must be corresponding to the MAX98090
> -    CODEC and the second entry must be the phandle of the HDMI IP block node
> -
> -Example:
> -
> -sound {
> -	compatible = "hardkernel,odroid-xu3-audio";
> -	model = "Odroid-XU3";
> -	samsung,audio-routing =
> -		"Headphone Jack", "HPL",
> -		"Headphone Jack", "HPR",
> -		"IN1", "Mic Jack",
> -		"Mic Jack", "MICBIAS";
> -
> -	cpu {
> -		sound-dai = <&i2s0 0>;
> -	};
> -	codec {
> -		sound-dai = <&hdmi>, <&max98090>;
> -	};
> -};
> diff --git a/Documentation/devicetree/bindings/sound/samsung,odroid.yaml b/Documentation/devicetree/bindings/sound/samsung,odroid.yaml
> new file mode 100644
> index 000000000000..db6d3ea3180e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/samsung,odroid.yaml
> @@ -0,0 +1,91 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/sound/samsung,odroid.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Samsung Exynos Odroid XU3/XU4 audio complex with MAX98090 codec
> +
> +maintainers:
> +  - Krzysztof Kozlowski <krzk@...nel.org>
> +  - Sylwester Nawrocki <s.nawrocki@...sung.com>
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - const: hardkernel,odroid-xu3-audio
> +
> +      - const: hardkernel,odroid-xu4-audio
> +        deprecated: true
> +
> +      - const: samsung,odroid-xu3-audio
> +        deprecated: true
> +
> +      - const: samsung,odroid-xu4-audio
> +        deprecated: true
> +
> +  model:
> +    $ref: /schemas/types.yaml#/definitions/string
> +    description: The user-visible name of this sound complex.
> +
> +  cpu:

Continuing discussion from TM2 audio, these are not standard properties,
so they can be in some reasonable order. Ordering might not only bring
readability but also solve conflicts of simultaneous edits.  The same in
"required" section (except compatible).

> +    type: object
> +    properties:
> +      sound-dai:
> +        $ref: /schemas/types.yaml#/definitions/phandle-array
> +        description: phandles to the I2S controllers
> +
> +  codec:
> +    type: object
> +    properties:
> +      sound-dai:
> +        $ref: /schemas/types.yaml#/definitions/phandle-array
> +        description: |
> +          List of phandles to the CODEC nodes,
> +          first entry must be corresponding to the MAX98090 CODEC and
> +          the second entry must be the phandle of the HDMI IP block node.
> +
> +  samsung,audio-widgets:
> +    $ref: /schemas/types.yaml#/definitions/non-unique-string-array
> +    description: |
> +      This property specifies off-codec audio elements
> +      like headphones or speakers, for details see widgets.txt
> +
> +  samsung,audio-routing:
> +    $ref: /schemas/types.yaml#/definitions/non-unique-string-array
> +    description: |
> +      List of the connections between audio

Too early word wrap.

Rest looks good to me, so with the changes:

Reviewed-by: Krzysztof Kozlowski <krzk@...nel.org>

Best regards,
Krzysztof