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Date:   Mon, 20 Apr 2020 13:37:25 -0500
From:   Rob Herring <robh@kernel.org>
To:     Anson Huang <Anson.Huang@nxp.com>
Cc:     rui.zhang@intel.com, daniel.lezcano@linaro.org,
        amit.kucheria@verdurent.com, shawnguo@kernel.org,
        s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com,
        linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Linux-imx@nxp.com
Subject: Re: [PATCH V2] dt-bindings: thermal: Convert i.MX8MM to json-schema
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On Fri, Apr 10, 2020 at 09:10:44AM +0800, Anson Huang wrote:
> Convert the i.MX8MM thermal binding to DT schema format using json-schema
> 
> Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
> ---
> Changes since V1:
> 	- Add description to mention that i.MX8MM thermal driver supports
> 	  both i.MX8MM(1 sensor) and i.MX8MP(2 sensors).
> 	- Remove ./thermal.txt reference.
> ---
>  .../devicetree/bindings/thermal/imx8mm-thermal.txt | 15 ------
>  .../bindings/thermal/imx8mm-thermal.yaml           | 62 ++++++++++++++++++++++
>  2 files changed, 62 insertions(+), 15 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/thermal/imx8mm-thermal.txt
>  create mode 100644 Documentation/devicetree/bindings/thermal/imx8mm-thermal.yaml
> 
> diff --git a/Documentation/devicetree/bindings/thermal/imx8mm-thermal.txt b/Documentation/devicetree/bindings/thermal/imx8mm-thermal.txt
> deleted file mode 100644
> index 3629d3c..0000000
> --- a/Documentation/devicetree/bindings/thermal/imx8mm-thermal.txt
> +++ /dev/null
> @@ -1,15 +0,0 @@
> -* Thermal Monitoring Unit (TMU) on Freescale i.MX8MM SoC
> -
> -Required properties:
> -- compatible : Must be "fsl,imx8mm-tmu" or "fsl,imx8mp-tmu".
> -- reg : Address range of TMU registers.
> -- clocks : TMU's clock source.
> -- #thermal-sensor-cells : Should be 0 or 1. See ./thermal.txt for a description.
> -
> -Example:
> -tmu: tmu@30260000 {
> -	compatible = "fsl,imx8mm-tmu";
> -	reg = <0x30260000 0x10000>;
> -	clocks = <&clk IMX8MM_CLK_TMU_ROOT>;
> -	#thermal-sensor-cells = <0>;
> -};
> diff --git a/Documentation/devicetree/bindings/thermal/imx8mm-thermal.yaml b/Documentation/devicetree/bindings/thermal/imx8mm-thermal.yaml
> new file mode 100644
> index 0000000..71807e5
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/thermal/imx8mm-thermal.yaml
> @@ -0,0 +1,62 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/thermal/imx8mm-thermal.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: NXP i.MX8M Mini Thermal Binding
> +
> +maintainers:
> +  - Anson Huang <Anson.Huang@nxp.com>
> +
> +description: |
> +  i.MX8MM has TMU IP to allow temperature measurement, there are
> +  currently two distinct major versions of the IP that is supported
> +  by a single driver. The IP versions are named v1 and v2, v1 is
> +  for i.MX8MM which has ONLY 1 sensor, v2 is for i.MX8MP which has
> +  2 sensors.
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:
> +          - enum:
> +              - fsl,imx8mm-tmu
> +              - fsl,imx8mp-tmu

Just:

compatible:
  enum:
    - fsl,imx8mm-tmu
    - fsl,imx8mp-tmu

> +  reg:
> +    description: |
> +      Address range of TMU registers.

Drop this.

> +    maxItems: 1

Blank line here.

> +  clocks:
> +    description: |
> +      TMU's clock source.

Drop

> +    maxItems: 1
> +
> +  "#thermal-sensor-cells":
> +    description: |
> +      Number of cells required to uniquely identify the thermal
> +      sensors, 0 for ONLY one sensor and 1 for multiple sensors.
> +    enum:
> +      - 0
> +      - 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - '#thermal-sensor-cells'
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/imx8mm-clock.h>
> +
> +    tmu: tmu@30260000 {

thermal-sensor@...

> +         compatible = "fsl,imx8mm-tmu";
> +         reg = <0x30260000 0x10000>;
> +         clocks = <&clk IMX8MM_CLK_TMU_ROOT>;
> +         #thermal-sensor-cells = <0>;
> +    };
> +
> +...
> -- 
> 2.7.4
>