linux-kernel - RE: [PATCH V2] dt-bindings: thermal: Convert i.MX to json-schema

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Date:   Wed, 13 May 2020 06:55:34 +0000
From:   Anson Huang <anson.huang@....com>
To:     Rob Herring <robh@...nel.org>
CC:     "rui.zhang@...el.com" <rui.zhang@...el.com>,
        "daniel.lezcano@...aro.org" <daniel.lezcano@...aro.org>,
        "amit.kucheria@...durent.com" <amit.kucheria@...durent.com>,
        "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>,
        "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
        "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 V2] dt-bindings: thermal: Convert i.MX to json-schema

Hi, Rob

> Subject: RE: [PATCH V2] dt-bindings: thermal: Convert i.MX to json-schema
> 
> Hi, Rob
> 
> 
> > Subject: Re: [PATCH V2] dt-bindings: thermal: Convert i.MX to
> > json-schema
> >
> > On Fri, Apr 10, 2020 at 09:07:24AM +0800, Anson Huang wrote:
> > > Convert the i.MX thermal binding to DT schema format using
> > > json-schema
> > >
> > > Signed-off-by: Anson Huang <Anson.Huang@....com>
> > > ---
> > > Changes since V1:
> > > 	- make clock property optional.
> > > ---
> > >  .../devicetree/bindings/thermal/imx-thermal.txt    | 61 --------------
> > >  .../devicetree/bindings/thermal/imx-thermal.yaml   | 96
> > ++++++++++++++++++++++
> > >  2 files changed, 96 insertions(+), 61 deletions(-)  delete mode
> > > 100644 Documentation/devicetree/bindings/thermal/imx-thermal.txt
> > >  create mode 100644
> > > Documentation/devicetree/bindings/thermal/imx-thermal.yaml
> > >
> > > diff --git
> > > a/Documentation/devicetree/bindings/thermal/imx-thermal.txt
> > > b/Documentation/devicetree/bindings/thermal/imx-thermal.txt
> > > deleted file mode 100644
> > > index 823e417..0000000
> > > +
> > > +title: NXP i.MX Thermal Binding
> > > +
> > > +maintainers:
> > > +  - Anson Huang <Anson.Huang@....com>
> > > +
> > > +properties:
> > > +  compatible:
> > > +    oneOf:
> > > +      - items:
> > > +          - enum:
> > > +              - fsl,imx6q-tempmon
> > > +              - fsl,imx6sx-tempmon
> > > +              - fsl,imx7d-tempmon
> > > +
> > > +  interrupts:
> > > +    description: |
> > > +      The interrupt output of the controller, the IRQ will be triggered
> > > +      when temperature is higher than high threshold.
> > > +    maxItems: 1
> > > +
> > > +  nvmem-cells:
> > > +    description: |
> > > +      Phandle to the calibration cells provided by ocotp for calibration
> > > +      data and temperature grade.
> > > +    maxItems: 2
> > > +
> > > +  nvmem-cell-names:
> > > +    maxItems: 2
> > > +    items:
> > > +      - const: calib
> > > +      - const: temp_grade
> > > +
> > > +  fsl,tempmon:
> > > +    $ref: '/schemas/types.yaml#/definitions/phandle'
> > > +    description: |
> > > +      Phandle pointer to system controller that contains TEMPMON
> > control
> > > +      registers, e.g. ANATOP on imx6q.
> >
> > Really, this should have been a child of the system controller. Not
> > too late to do that, but you'd need to keep this for compatibility.
> 
> Sorry, I don't quite get your point, can you provide more details or example,
> thanks.

I guess you meant the tempmon node should be put inside anatop node? Then
DT files also needs to be changed? Right? 

 anatop: anatop@...8000 {
         compatible = "fsl,imx6sx-anatop", "fsl,imx6q-anatop",
         "syscon", "simple-mfd";
         reg = <0x020c8000 0x1000>;
         interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>,
                   <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>,
                   <GIC_SPI 127 IRQ_TYPE_LEVEL_HIGH>;
 ...
 };

 tempmon: tempmon {
         compatible = "fsl,imx6sx-tempmon", "fsl,imx6q-tempmon";
         interrupt-parent = <&gpc>;
         interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
         fsl,tempmon = <&anatop>;
         nvmem-cells = <&tempmon_calib>, <&tempmon_temp_grade>;
         nvmem-cell-names = "calib", "temp_grade";
         clocks = <&clks IMX6SX_CLK_PLL3_USB_OTG>;
  };

Thanks,
Anson