linux-kernel - Re: [PATCH 2/5] dt-bindings: mfd: rk809: Add missing audio codec properties

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Date: Fri, 21 Jun 2024 12:16:06 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>,
 Lee Jones <lee@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>,
 Chris Zhong <zyw@...k-chips.com>, Zhang Qing <zhangqing@...k-chips.com>,
 Chris Morgan <macromorgan@...mail.com>,
 Furkan Kardame <f.kardame@...jaro.org>,
 Michael Riesch <michael.riesch@...fvision.net>
Cc: kernel@...labora.com, devicetree@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/5] dt-bindings: mfd: rk809: Add missing audio codec
 properties

On 19/06/2024 13:23, Cristian Ciocaltea wrote:
> The RK809 MFD provides a RK817 compatible audio codec, supported by the
> rk817_codec driver.
> 
> This has been already in use by several boards: rk3566-quartz64-b,
> k3566-roc-pc, rk3568-evb1-v10, rk3568-lubancat-2, rk3568-odroid-m1,
> rk3568-rock-3a.  However, dtbs_check fails for all of them:
> 
>   DTC_CHK arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dtb
>   rk3568-rock-3a.dtb: pmic@20: '#sound-dai-cells', 'assigned-clock-parents', 'assigned-clocks', 'clock-names', 'clocks', 'codec' do not match any of the regexes: 'pinctrl-[0-9]+'
>     from schema $id: http://devicetree.org/schemas/mfd/rockchip,rk809.yaml#
> 
> Document the missing audio codec properties as found on the
> rockchip,rk817 schema.
> 
> Fixes: 6c38ca03406e ("dt-bindings: mfd: rk808: Convert bindings to yaml")
> Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
> ---
>  .../devicetree/bindings/mfd/rockchip,rk809.yaml    | 30 +++++++++++++++++++++-
>  1 file changed, 29 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/mfd/rockchip,rk809.yaml b/Documentation/devicetree/bindings/mfd/rockchip,rk809.yaml
> index a327d73f3c43..cadfb5f1c631 100644
> --- a/Documentation/devicetree/bindings/mfd/rockchip,rk809.yaml
> +++ b/Documentation/devicetree/bindings/mfd/rockchip,rk809.yaml
> @@ -12,7 +12,7 @@ maintainers:
>  
>  description: |
>    Rockchip RK809 series PMIC. This device consists of an i2c controlled MFD
> -  that includes regulators, an RTC, and power button.
> +  that includes regulators, an RTC, a power button and an audio codec.
>  
>  properties:
>    compatible:
> @@ -93,6 +93,34 @@ properties:
>          unevaluatedProperties: false
>      unevaluatedProperties: false
>  
> +  clocks:
> +    description:
> +      The input clock for the audio codec.

Instead, maxItems. Or items with description.

> +
> +  clock-names:
> +    description:
> +      The clock name for the codec clock.

Drop description.

> +    items:
> +      - const: mclk
> +
> +  '#sound-dai-cells':
> +    description:
> +      Needed for the interpretation of sound dais.

Description looks redundant, drop.

> +    const: 0
> +
> +  codec:
> +    description: |

Do not need '|' unless you need to preserve formatting.

> +      The child node for the codec to hold additional properties. If no
> +      additional properties are required for the codec, this node can be
> +      omitted.

Useless description. Say something hardware relevant, not about DTS syntax.

> +    type: object
> +    additionalProperties: false
> +    properties:
> +      rockchip,mic-in-differential:
> +        type: boolean
> +        description:
> +          Describes if the microphone uses differential mode.

No resources? Then it goes to parent.

> +
>  allOf:

Add $ref to dai-common.yaml.

>    - if:
>        properties:
> 

Best regards,
Krzysztof