linux-kernel - Re: [PATCH V3][4/4] dt-bindings: mmc: Add dt-bindings for realtek mmc driver

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Date:   Fri, 20 Oct 2023 08:52:49 -0500
From:   Rob Herring <robh+dt@...nel.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Jyan Chou <jyanchou@...ltek.com>
Cc:     adrian.hunter@...el.com, jh80.chung@...sung.com,
        ulf.hansson@...aro.org, riteshh@...eaurora.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        asutoshd@...eaurora.org, p.zabel@...gutronix.de,
        linux-mmc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, arnd@...db.de,
        briannorris@...omium.org, doug@...morgal.com,
        tonyhuang.sunplus@...il.com, abel.vesa@...aro.org,
        william.qiu@...rfivetech.com
Subject: Re: [PATCH V3][4/4] dt-bindings: mmc: Add dt-bindings for realtek mmc driver

On Fri, Oct 20, 2023 at 1:50 AM Krzysztof Kozlowski
<krzysztof.kozlowski@...aro.org> wrote:
>
> On 20/10/2023 05:49, Jyan Chou wrote:
> > Document the device-tree bindings for Realtek SoCs mmc driver.
> >
> > Signed-off-by: Jyan Chou <jyanchou@...ltek.com>
> >
> > ---
> > v2 -> v3:
> > - Modify dt-bindings' content and description.
> > - Fix coding style.
> > - Update the list of maintainers.
> >
> > v0 -> v2:
> > - Add dt-bindings.
> > ---
> > ---
> >  .../bindings/mmc/realtek-dw-mshc.yaml         | 150 ++++++++++++++++++
> >  1 file changed, 150 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/mmc/realtek-dw-mshc.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/mmc/realtek-dw-mshc.yaml b/Documentation/devicetree/bindings/mmc/realtek-dw-mshc.yaml
> > new file mode 100644
> > index 000000000000..b1e37fb37be9
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/mmc/realtek-dw-mshc.yaml
>
> Filename matching compatible.
>
> BTW, before you respond, be sure you have fixed your email client. In
> your last response everything was not properly wrapped (not matching
> mailing list discussion style).
>
> > @@ -0,0 +1,150 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/mmc/realtek-dw-mshc.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Realtek designware mobile storage host controller
>
>
> DesignWare
>
> > +
> > +description:
> > +  Realtek uses the Synopsys designware mobile storage host controller
>
> DesignWare
>
> > +  to interface a SoC with storage medium. This file documents the Realtek
> > +  specific extensions.
> > +
> > +allOf:
> > +  - $ref: synopsys-dw-mshc-common.yaml#
> > +
> > +maintainers:
> > +  - Jyan Chou <jyanchou@...ltek.com>
> > +
> > +properties:
> > +  compatible:
> > +    enum:
> > +      - realtek,rtd-dw-cqe-emmc
>
> Compatibles should have SoC-specific part. It does not look like you
> have one here.
>
> Missing blank line
>
> > +  reg:
> > +    maxItems: 2
>
> You need to describe the items.
>
> > +
> > +  reg-names:
> > +    maxItems: 2
>
> You need to describe the items.
>
> > +
> > +  interrupts:
> > +    maxItems: 1
> > +
> > +  cqe:
> > +    maxItems: 1
>
> Looks like some custom property. If it is a generic one, where is it
> documented? If it is custom, missing vendor prefix and description.
> Detailed description.

There's common properties related to CQE. Use them.

Rob