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

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Message-ID: <AM6PR04MB4966F875F2E04D0F6FC3AE3A80B60@AM6PR04MB4966.eurprd04.prod.outlook.com>
Date:   Wed, 20 May 2020 07:42:50 +0000
From:   Aisheng Dong <aisheng.dong@....com>
To:     Anson Huang <anson.huang@....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

> 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

> +          - 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.

> +
> +  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

> +    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..

Regards
Aisheng

> +
> +  fsl,tempmon-data:
> +    $ref: '/schemas/types.yaml#/definitions/phandle'
> +    description: |
> +      Deprecated property, phandle pointer to fuse controller that contains
> +      TEMPMON calibration data, e.g. OCOTP on imx6q. The details about
> +      calibration data can be found in SoC Reference Manual.
> +    deprecated: true
> +
> +  clocks:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - interrupts
> +  - fsl,tempmon
> +  - nvmem-cells
> +  - nvmem-cell-names
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/imx6sx-clock.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> +    efuse@...c000 {
> +         #address-cells = <1>;
> +         #size-cells = <1>;
> +         compatible = "fsl,imx6sx-ocotp", "syscon";
> +         reg = <0x021bc000 0x4000>;
> +         clocks = <&clks IMX6SX_CLK_OCOTP>;
> +
> +         tempmon_calib: calib@38 {
> +             reg = <0x38 4>;
> +         };
> +
> +         tempmon_temp_grade: temp-grade@20 {
> +             reg = <0x20 4>;
> +         };
> +    };
> +
> +    anatop@...8000 {
> +        compatible = "fsl,imx6q-anatop", "syscon", "simple-mfd";
> +        reg = <0x020c8000 0x1000>;
> +        interrupts = <0 49 IRQ_TYPE_LEVEL_HIGH>,
> +                     <0 54 IRQ_TYPE_LEVEL_HIGH>,
> +                     <0 127 IRQ_TYPE_LEVEL_HIGH>;
> +
> +        tempmon {
> +             compatible = "fsl,imx6sx-tempmon";
> +             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>;
> +        };
> +    };
> --
> 2.7.4