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Date:   Tue, 19 May 2020 03:03:26 +0000
From:   Anson Huang <anson.huang@....com>
To:     Aisheng Dong <aisheng.dong@....com>,
        "daniel.lezcano@...aro.org" <daniel.lezcano@...aro.org>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "robh+dt@...nel.org" <robh+dt@...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>,
        Jacky Bai <ping.bai@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
CC:     dl-linux-imx <linux-imx@....com>
Subject: RE: [PATCH 1/3] dt-bindings: timer: Convert i.MX GPT to json-schema



> Subject: RE: [PATCH 1/3] dt-bindings: timer: Convert i.MX GPT to json-schema
> 
> > From: Anson Huang <Anson.Huang@....com>
> > Sent: Monday, May 18, 2020 10:48 PM
> >
> > Convert the i.MX GPT binding to DT schema format using json-schema.
> >
> > Signed-off-by: Anson Huang <Anson.Huang@....com>
> > ---
> >  .../devicetree/bindings/timer/fsl,imxgpt.txt       |  45 ---------
> >  .../devicetree/bindings/timer/fsl,imxgpt.yaml      | 109
> > +++++++++++++++++++++
> >  2 files changed, 109 insertions(+), 45 deletions(-)  delete mode
> > 100644 Documentation/devicetree/bindings/timer/fsl,imxgpt.txt
> >  create mode 100644
> > Documentation/devicetree/bindings/timer/fsl,imxgpt.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/timer/fsl,imxgpt.txt
> > b/Documentation/devicetree/bindings/timer/fsl,imxgpt.txt
> > deleted file mode 100644
> > index 5d8fd5b..0000000
> > --- a/Documentation/devicetree/bindings/timer/fsl,imxgpt.txt
> > +++ /dev/null
> > @@ -1,45 +0,0 @@
> > -Freescale i.MX General Purpose Timer (GPT)
> > -
> > -Required properties:
> > -
> > -- compatible : should be one of following:
> > -  for i.MX1:
> > -  - "fsl,imx1-gpt";
> > -  for i.MX21:
> > -  - "fsl,imx21-gpt";
> > -  for i.MX27:
> > -  - "fsl,imx27-gpt", "fsl,imx21-gpt";
> > -  for i.MX31:
> > -  - "fsl,imx31-gpt";
> > -  for i.MX25:
> > -  - "fsl,imx25-gpt", "fsl,imx31-gpt";
> > -  for i.MX50:
> > -  - "fsl,imx50-gpt", "fsl,imx31-gpt";
> > -  for i.MX51:
> > -  - "fsl,imx51-gpt", "fsl,imx31-gpt";
> > -  for i.MX53:
> > -  - "fsl,imx53-gpt", "fsl,imx31-gpt";
> > -  for i.MX6Q:
> > -  - "fsl,imx6q-gpt", "fsl,imx31-gpt";
> > -  for i.MX6DL:
> > -  - "fsl,imx6dl-gpt";
> > -  for i.MX6SL:
> > -  - "fsl,imx6sl-gpt", "fsl,imx6dl-gpt";
> > -  for i.MX6SX:
> > -  - "fsl,imx6sx-gpt", "fsl,imx6dl-gpt";
> > -- reg : specifies base physical address and size of the registers.
> > -- interrupts : should be the gpt interrupt.
> > -- clocks : the clocks provided by the SoC to drive the timer, must contain
> > -           an entry for each entry in clock-names.
> > -- clock-names : must include "ipg" entry first, then "per" entry.
> > -
> > -Example:
> > -
> > -gpt1: timer@...03000 {
> > -	compatible = "fsl,imx27-gpt", "fsl,imx21-gpt";
> > -	reg = <0x10003000 0x1000>;
> > -	interrupts = <26>;
> > -	clocks = <&clks IMX27_CLK_GPT1_IPG_GATE>,
> > -		 <&clks IMX27_CLK_PER1_GATE>;
> > -	clock-names = "ipg", "per";
> > -};
> > diff --git a/Documentation/devicetree/bindings/timer/fsl,imxgpt.yaml
> > b/Documentation/devicetree/bindings/timer/fsl,imxgpt.yaml
> > new file mode 100644
> > index 0000000..5c7186b
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/timer/fsl,imxgpt.yaml
> > @@ -0,0 +1,109 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2
> > +---
> > +
> > +title: Freescale i.MX General Purpose Timer (GPT)
> > +
> > +maintainers:
> > +  - Sascha Hauer <s.hauer@...gutronix.de>
> > +
> > +properties:
> > +  compatible:
> > +    oneOf:
> > +      - description: on i.MX1 the following compatible must be
> > +specified
> 
> Such a description seems not necessary in order to make the doc more clean

You meant the description is NOT necessary for those simple compatible string platforms or for
all platforms, I feel like having the description is more clear for users.

Anson

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