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

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Message-ID: <DB3PR0402MB3916B45468AD8B69D6F318FDF5B60@DB3PR0402MB3916.eurprd04.prod.outlook.com>
Date:   Wed, 20 May 2020 08:03:57 +0000
From:   Anson Huang <anson.huang@....com>
To:     Aisheng Dong <aisheng.dong@....com>,
        "rui.zhang@...el.com" <rui.zhang@...el.com>,
        "daniel.lezcano@...aro.org" <daniel.lezcano@...aro.org>,
        "amit.kucheria@...durent.com" <amit.kucheria@...durent.com>,
        "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>,
        "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>
CC:     dl-linux-imx <linux-imx@....com>
Subject: RE: [PATCH V2] dt-bindings: thermal: Convert i.MX to json-schema



> Subject: RE: [PATCH V2] dt-bindings: thermal: Convert i.MX to json-schema
> 
> > From: Anson Huang <Anson.Huang@....com>
> > Sent: Wednesday, May 20, 2020 2:03 PM
> >
> > Convert the i.MX thermal binding to DT schema format using json-schema
> >
> > Signed-off-by: Anson Huang <Anson.Huang@....com>
> > ---
> > Changes since V1:
> > 	- move tempmon node into its parent node anatop in example;
> > 	- improve "fsl,tempmon" description.
> > ---
> >  .../devicetree/bindings/thermal/imx-thermal.txt    |  61 -------------
> >  .../devicetree/bindings/thermal/imx-thermal.yaml   | 100
> 
> [...]
> 
> > +title: NXP i.MX Thermal Binding
> > +
> > +maintainers:
> > +  - Shawn Guo <shawn.guo@...aro.org>
> > +  - Anson Huang <Anson.Huang@....com>
> > +
> > +properties:
> > +  compatible:
> > +    oneOf:
> > +      - items:
> 
> Drop Unnecessary properties

Will use enum directly.

> 
> > +          - 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
> 
> You'd better explain why interrupts number is changed in the new binding
> compared to the original one. Probably add in commit message if really
> needed.

There is ONLY 1 interrupt output from temperature to GIC, some platforms like
i.MX6SX/i.MX7D has 2 more secondary interrupts inside anatop which shares same output
interrupt to GIC, these 2 interrupts are NOT used for now, so from the high level
description of the interrupt, should be ONLY 1 interrupt item I think.

> 
> > +
> > +  nvmem-cells:
> > +    description: |
> > +      Phandle to the calibration cells provided by ocotp for calibration
> > +      data and temperature grade.
> 
> Better describe for each of them as you did for clocks

Will do in V3.

> 
> > +    maxItems: 2
> > +
> > +  nvmem-cell-names:
> > +    maxItems: 2
> > +    items:
> > +      - const: calib
> > +      - const: temp_grade
> > +
> > +  fsl,tempmon:
> > +    $ref: '/schemas/types.yaml#/definitions/phandle'
> > +    description: Phandle to the register map node.
> 
> What register map? A bit ambiguous..

Temperature sensor registers, will add more detail in V3.

Anson