linux-kernel - RE: [PATCH v8 1/4] dt-bindings: soc: imx8m: add DT Binding doc for soc unique ID

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Date:   Mon, 21 Dec 2020 09:20:48 +0000
From:   "Alice Guo (OSS)" <alice.guo@....nxp.com>
To:     Rob Herring <robh+dt@...nel.org>,
        "Alice Guo (OSS)" <alice.guo@....nxp.com>
CC:     Krzysztof Kozlowski <krzk@...nel.org>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        dl-linux-imx <linux-imx@....com>
Subject: RE: [PATCH v8 1/4] dt-bindings: soc: imx8m: add DT Binding doc for
 soc unique ID



> -----Original Message-----
> From: Rob Herring <robh+dt@...nel.org>
> Sent: 2020年12月18日 22:00
> To: Alice Guo (OSS) <alice.guo@....nxp.com>
> Cc: Krzysztof Kozlowski <krzk@...nel.org>; shawnguo@...nel.org;
> s.hauer@...gutronix.de; kernel@...gutronix.de; festevam@...il.com;
> devicetree@...r.kernel.org; linux-arm-kernel@...ts.infradead.org;
> linux-kernel@...r.kernel.org; dl-linux-imx <linux-imx@....com>
> Subject: Re: [PATCH v8 1/4] dt-bindings: soc: imx8m: add DT Binding doc for soc
> unique ID
> 
> On Fri, Dec 18, 2020 at 4:14 AM Alice Guo (OSS) <alice.guo@....nxp.com>
> wrote:
> >
> >
> >
> > > -----Original Message-----
> > > From: Krzysztof Kozlowski <krzk@...nel.org>
> > > Sent: 2020年12月18日 17:37
> > > To: Alice Guo (OSS) <alice.guo@....nxp.com>
> > > Cc: robh+dt@...nel.org; shawnguo@...nel.org; s.hauer@...gutronix.de;
> > > kernel@...gutronix.de; festevam@...il.com;
> > > devicetree@...r.kernel.org; linux-arm-kernel@...ts.infradead.org;
> > > linux-kernel@...r.kernel.org; dl-linux-imx <linux-imx@....com>
> > > Subject: Re: [PATCH v8 1/4] dt-bindings: soc: imx8m: add DT Binding
> > > doc for soc unique ID
> > >
> > > On Fri, Dec 18, 2020 at 09:05:00AM +0000, Alice Guo (OSS) wrote:
> > >  > > +    required:
> > > > > > +      - compatible
> > > > > > +      - nvmem-cells
> > > > > > +      - nvmem-cell-names
> > > > > > +
> > > > > > +additionalProperties: true
> > > > >
> > > > > Don't leave comments unresolved (or resolve them against review
> > > > > without discussion). Rob asked for changing it. The same as with
> > > > > all schemas - you need to describe the missing properties.
> > > > >
> > > > > Best regards,
> > > > > Krzysztof
> > > >
> > > > Hi,
> > > > Thank you for your advice. I replied to him and let him know I
> > > > remained here
> > > unchanged. There will be errors according to his suggestion.
> > >
> > > Then the solution is to correct the errors - describe missing
> > > properties
> > > - instead of ignoring the suggestion and making a resubmit right away.
> > >
> > > Best regards,
> > > Krzysztof
> >
> > Hi,
> > I am sorry I do not DT Binding doc very well.
> >
> > I checked the usage of patternProperties and additionalProperties in
> https://json-schema.org/understanding-json-schema/reference/object.html.
> > I noticed a sentence on the website: " If additionalProperties is a
> > boolean and set to false, no additional properties will be allowed.", so I think
> that if additionalProperties is a boolean and set to true, additional properties
> will be allowed. Letting here unchanged is my solution to correct the errors.
> > I am not sure, I asked Rob for advice on the v6 by email, but he didn't reply to
> me, so I made a resubmit.
> 
> You waited an hour and I was sleeping! Waiting means waiting a week.
> 
> You need to add '#address-cells' and '#size-cells'.
> 
> Rob
Hi, Rob

Can change to the following code?
When uses "additionalProperties: type: object", need to add model, compatible, interrupt-parent, #address-cells and #size-cells.
There will be error with adding interrupt-parent because "dt-bindings: remove 'interrupt-parent' from bindings".

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/soc/imx/imx8m-soc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: NXP i.MX8M Series SoC

maintainers:
  - Alice Guo <alice.guo@....com>

description: |
  NXP i.MX8M series SoCs contain fuse entries from which SoC Unique ID can be
  obtained.

properties:
  $nodename:
    const: '/'

  compatible:
    contains:
      enum:
        - fsl,imx8mm
        - fsl,imx8mn
        - fsl,imx8mp
        - fsl,imx8mq
 
  "#address-cells":
    const: 2
  "#size-cells":
    const: 2

patternProperties:
  "^soc@[0-9a-f]+$":
    type: object
    properties:
      compatible:
        items:
          - enum:
              - fsl,imx8mm-soc
              - fsl,imx8mn-soc
              - fsl,imx8mp-soc
              - fsl,imx8mq-soc
          - const: simple-bus

      nvmem-cells:
        maxItems: 1
        description: Phandle to the SOC Unique ID provided by a nvmem node

      nvmem-cells-names:
        const: soc_unique_id

    required:
      - compatible
      - nvmem-cells
      - nvmem-cell-names

additionalProperties: true
...

Best regards,
Alice