linux-kernel - Re: [PATCH 2/8] dt-bindings: serial: fsl-linflexuart: convert to json-schema format

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Date:   Fri, 13 Aug 2021 19:11:04 +0800
From:   Chester Lin <clin@...e.com>
To:     Andreas Färber <afaerber@...e.de>
CC:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-serial@...r.kernel.org,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Oleksij Rempel <linux@...pel-privat.de>,
        Stefan Riedmueller <s.riedmueller@...tec.de>,
        Matthias Schiffer <matthias.schiffer@...tq-group.com>,
        Li Yang <leoyang.li@....com>,
        Fabio Estevam <festevam@...il.com>,
        Matteo Lisi <matteo.lisi@...icam.com>,
        Frieder Schrempf <frieder.schrempf@...tron.de>,
        Tim Harvey <tharvey@...eworks.com>,
        Jagan Teki <jagan@...rulasolutions.com>, s32@....com,
        catalin-dan.udma@....com, bogdan.hamciuc@....com,
        bogdan.folea@....com, ciprianmarian.costea@....com,
        radu-nicolae.pirea@....com, ghennadi.procopciuc@....com,
        Matthias Brugger <matthias.bgg@...il.com>,
        "Ivan T . Ivanov" <iivanov@...e.de>, "Lee, Chun-Yi" <jlee@...e.com>
Subject: Re: [PATCH 2/8] dt-bindings: serial: fsl-linflexuart: convert to
 json-schema format

Hi Andreas,

On Thu, Aug 12, 2021 at 06:04:44PM +0200, Andreas Färber wrote:
> On 05.08.21 08:54, Chester Lin wrote:
> > Convert the FSL LINFlexD UART binding to json-schema.
> > 
> > Signed-off-by: Chester Lin <clin@...e.com>
> > ---
> >  .../bindings/serial/fsl,s32-linflexuart.txt   | 22 ---------
> >  .../bindings/serial/fsl,s32-linflexuart.yaml  | 48 +++++++++++++++++++
> >  2 files changed, 48 insertions(+), 22 deletions(-)
> >  delete mode 100644 Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.txt
> >  create mode 100644 Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml
> 
> Thanks for your effort, Chester.
> 
> > diff --git a/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.txt b/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.txt
> > deleted file mode 100644
> > index f1bbe0826be5..000000000000
> > --- a/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.txt
> > +++ /dev/null
> > @@ -1,22 +0,0 @@
> > -* Freescale LINFlexD UART
> > -
> > -The LINFlexD controller implements several LIN protocol versions, as well as
> > -support for full-duplex UART communication through 8-bit and 9-bit frames.
> > -
> > -See chapter 47 ("LINFlexD") in the reference manual[1].
> > -
> > -Required properties:
> > -- compatible :
> > -  - "fsl,s32v234-linflexuart" for LINFlexD configured in UART mode, which
> > -    is compatible with the one integrated on S32V234 SoC
> > -- reg : Address and length of the register set for the device
> > -- interrupts : Should contain uart interrupt
> > -
> > -Example:
> > -uart0: serial@...53000 {
> > -	compatible = "fsl,s32v234-linflexuart";
> > -	reg = <0x0 0x40053000 0x0 0x1000>;
> > -	interrupts = <0 59 4>;
> > -};
> > -
> > -[1] https://www.nxp.com/webapp/Download?colCode=S32V234RM
> > diff --git a/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml b/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml
> > new file mode 100644
> > index 000000000000..acfe34706ccb
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml
> > @@ -0,0 +1,48 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> 
> Since this is dual-licensed and BSD-2-Clause would seem compatible with
> GPLv3, this could probably be s/GPL-2.0-only/GPL-2.0-or-later/ ? Not a
> blocker.

There's no license identifier in the original file so it's not a problem to
choose "GPL-2.0-or-later".

> 
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/serial/fsl,s32-linflexuart.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Freescale LINFlexD UART
> > +
> > +description: |
> > +  The LINFlexD controller implements several LIN protocol versions, as well
> > +  as support for full-duplex UART communication through 8-bit and 9-bit
> > +  frames. See chapter 47 ("LINFlexD") in the reference manual
> > +  https://www.nxp.com/webapp/Download?colCode=S32V234RM.
> > +
> > +maintainers:
> > +  - Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> > +  - Rob Herring <robh@...nel.org>
> 
> @Shawn: I assume we need both of them to ack this (or an S32V maintainer
> to volunteer), since they were not named in the .txt file before?
> 
> > +
> > +allOf:
> > +  - $ref: "serial.yaml"
> > +
> > +properties:
> > +  compatible:
> > +    description: The LINFlexD controller on S32V234 SoC, which can be
> > +      configured in UART mode.
> > +    items:
> > +      - const: fsl,s32v234-linflexuart
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  interrupts:
> > +    maxItems: 1
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - interrupts
> > +
> > +unevaluatedProperties: false
> > +
> > +examples:
> > +  - |
> > +    serial@...53000 {
> > +        compatible = "fsl,s32v234-linflexuart";
> > +        reg = <0x40053000 0x1000>;
> > +        interrupts = <0 59 4>;
> > +    };
> 
> Otherwise looking sane,
> 
> Reviewed-by: Andreas Färber <afaerber@...e.de>
> 
> Thanks,
> Andreas
> 
> -- 
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