linux-kernel - Re: [PATCH v2 1/2] ASoC: dt-bindings: Add PDM controller for the StarFive JH8100 SoC

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Date: Tue, 23 Apr 2024 11:49:28 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Xingyu Wu <xingyu.wu@...rfivetech.com>,
 Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
 Takashi Iwai <tiwai@...e.com>, Jaroslav Kysela <perex@...ex.cz>,
 Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor.dooley@...rochip.com>
Cc: Walker Chen <walker.chen@...rfivetech.com>, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, alsa-devel@...a-project.org,
 linux-sound@...r.kernel.org
Subject: Re: [PATCH v2 1/2] ASoC: dt-bindings: Add PDM controller for the
 StarFive JH8100 SoC

On 23/04/2024 10:34, Xingyu Wu wrote:
> Add bindings about the PDM controller for the StarFive JH8100 SoC.
> 
> Signed-off-by: Xingyu Wu <xingyu.wu@...rfivetech.com>

If there is going to be resend/new version, three nits. Anyway:

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

..

> +
> +title: StarFive JH8100 PDM controller
> +
> +description: |

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

> +  The Pulse Density Modulation (PDM) controller is a digital PDM out
> +  microphone interface controller and decoder that supports both up to 4
> +  channels, and an Inter-IC Sound (I2S) transmitter that outputs standard
> +  stereo audio data to another device. The I2S transmitter can be
> +  configured to operate either a master or a slave (default mode). The PDM
> +  controller includes two PDM blocks, each PDM block can drive one
> +  bitstream sampling clock and two bitstream coming data (mono/stereo)
> +  with sampling clock rising and falling edge.
> +
> +maintainers:
> +  - Xingyu Wu <xingyu.wu@...rfivetech.com>
> +  - Walker Chen <walker.chen@...rfivetech.com>
> +
> +allOf:
> +  - $ref: dai-common.yaml#
> +
> +properties:
> +  compatible:
> +    const: starfive,jh8100-pdm
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: DMIC output clock
> +      - description: Main ICG clock
> +
> +  clock-names:
> +    items:
> +      - const: dmic
> +      - const: icg
> +
> +  resets:
> +    maxItems: 1
> +
> +  "#sound-dai-cells":
> +    const: 0
> +
> +  starfive,syscon:
> +    $ref: /schemas/types.yaml#/definitions/phandle-array
> +    items:
> +      - items:
> +          - description: phandle to System Register Controller sys_syscon_ne node.
> +          - description: PDM source enabled control offset of SYS_SYSCON_NE register.
> +          - description: PDM source enabled control mask
> +    description:
> +      The phandle to System Register Controller syscon node and the PDM source
> +      from I2S enabled control offset and mask of SYS_SYSCON_NE register.

This description duplicates items. Drop redundant parts (there is really
never a need to say phandle is a phandle because it cannot be anything
else). Instead say what is it used for.


> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - resets
> +  - '#sound-dai-cells'

Use consistent quotes, either ' or "



Best regards,
Krzysztof