linux-kernel - Re: [PATCH V2 1/3] dt-bindings: spi: Convert mxs spi to json-schema

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Date:   Mon, 15 Jun 2020 11:12:09 -0600
From:   Rob Herring <robh@...nel.org>
To:     Anson Huang <Anson.Huang@....com>
Cc:     broonie@...nel.org, shawnguo@...nel.org, s.hauer@...gutronix.de,
        kernel@...gutronix.de, festevam@...il.com, marex@...x.de,
        linux-spi@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Linux-imx@....com
Subject: Re: [PATCH V2 1/3] dt-bindings: spi: Convert mxs spi to json-schema

On Thu, Jun 04, 2020 at 09:55:29AM +0800, Anson Huang wrote:
> Convert the MXS SPI binding to DT schema format using json-schema
> 
> Signed-off-by: Anson Huang <Anson.Huang@....com>
> ---
> Changes since V1:
> 	- add "unevaluatedProperties: false".
> ---
>  Documentation/devicetree/bindings/spi/mxs-spi.txt  | 26 ----------
>  Documentation/devicetree/bindings/spi/mxs-spi.yaml | 57 ++++++++++++++++++++++
>  2 files changed, 57 insertions(+), 26 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/spi/mxs-spi.txt
>  create mode 100644 Documentation/devicetree/bindings/spi/mxs-spi.yaml
> 
> diff --git a/Documentation/devicetree/bindings/spi/mxs-spi.txt b/Documentation/devicetree/bindings/spi/mxs-spi.txt
> deleted file mode 100644
> index 3499b73..0000000
> --- a/Documentation/devicetree/bindings/spi/mxs-spi.txt
> +++ /dev/null
> @@ -1,26 +0,0 @@
> -* Freescale MX233/MX28 SSP/SPI
> -
> -Required properties:
> -- compatible: Should be "fsl,<soc>-spi", where soc is "imx23" or "imx28"
> -- reg: Offset and length of the register set for the device
> -- interrupts: Should contain SSP ERROR interrupt
> -- dmas: DMA specifier, consisting of a phandle to DMA controller node
> -  and SSP DMA channel ID.
> -  Refer to dma.txt and fsl-mxs-dma.txt for details.
> -- dma-names: Must be "rx-tx".
> -
> -Optional properties:
> -- clock-frequency : Input clock frequency to the SPI block in Hz.
> -		    Default is 160000000 Hz.
> -
> -Example:
> -
> -ssp0: ssp@...10000 {
> -	#address-cells = <1>;
> -	#size-cells = <0>;
> -	compatible = "fsl,imx28-spi";
> -	reg = <0x80010000 0x2000>;
> -	interrupts = <96>;
> -	dmas = <&dma_apbh 0>;
> -	dma-names = "rx-tx";
> -};
> diff --git a/Documentation/devicetree/bindings/spi/mxs-spi.yaml b/Documentation/devicetree/bindings/spi/mxs-spi.yaml
> new file mode 100644
> index 0000000..68c5d6d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/spi/mxs-spi.yaml
> @@ -0,0 +1,57 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/spi/mxs-spi.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Freescale MX233/MX28 SSP/SPI
> +
> +maintainers:
> +  - Marek Vasut <marex@...x.de>
> +
> +allOf:
> +  - $ref: "/schemas/spi/spi-controller.yaml#"
> +
> +properties:
> +  compatible:
> +    enum:
> +      - fsl,imx23-spi
> +      - fsl,imx28-spi
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  dmas:
> +    maxItems: 1
> +
> +  dma-names:
> +    const: rx-tx
> +
> +  clock-frequency:
> +    $ref: /schemas/types.yaml#/definitions/uint32

Already has a type, drop.

With that,

Reviewed-by: Rob Herring <robh@...nel.org>

> +    description: input clock frequency to the SPI block in Hz.
> +    default: 160000000
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - dmas
> +  - dma-names
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    spi@...10000 {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +        compatible = "fsl,imx28-spi";
> +        reg = <0x80010000 0x2000>;
> +        interrupts = <96>;
> +        dmas = <&dma_apbh 0>;
> +        dma-names = "rx-tx";
> +    };
> -- 
> 2.7.4
>