linux-kernel - Re: [PATCH] dt-bindings: spi: Convert spi-mtk-nor to json-schema

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Message-ID: <20200825222037.GA1443219@bogus>
Date:   Tue, 25 Aug 2020 16:20:37 -0600
From:   Rob Herring <robh@...nel.org>
To:     Ikjoon Jang <ikjn@...omium.org>
Cc:     Mark Brown <broonie@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Bayi Cheng <bayi.cheng@...iatek.com>,
        Chuanhong Guo <gch981213@...il.com>, linux-spi@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: spi: Convert spi-mtk-nor to json-schema

On Thu, Aug 20, 2020 at 01:28:27PM +0800, Ikjoon Jang wrote:
> Convert Mediatek ARM SOC's serial NOR flash controller binding
> to json-schema format.
> 
> Signed-off-by: Ikjoon Jang <ikjn@...omium.org>
> ---
>  .../bindings/spi/mediatek,spi-mtk-nor.yaml    | 82 +++++++++++++++++++
>  .../devicetree/bindings/spi/spi-mtk-nor.txt   | 47 -----------
>  2 files changed, 82 insertions(+), 47 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml
>  delete mode 100644 Documentation/devicetree/bindings/spi/spi-mtk-nor.txt
> 
> diff --git a/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml b/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml
> new file mode 100644
> index 000000000000..1e4bcf691539
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml
> @@ -0,0 +1,82 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/spi/mediatek,spi-mtk-nor.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Serial NOR flash controller for MediaTek ARM SoCs
> +
> +maintainers:
> +  - Bayi Cheng <bayi.cheng@...iatek.com>
> +  - Chuanhong Guo <gch981213@...il.com>
> +
> +description: |
> +  This spi controller support single, dual, or quad mode transfer for
> +  SPI NOR flash. There should be only one spi slave device following
> +  generic spi bindings. It's not recommended to use this controller
> +  for devices other than SPI NOR flash due to limited transfer
> +  capability of this controller.
> +
> +allOf:
> +  - $ref: /spi/spi-controller.yaml#
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:
> +          - enum:
> +              - mediatek,mt2701-nor
> +              - mediatek,mt2712-nor
> +              - mediatek,mt7622-nor
> +              - mediatek,mt7623-nor
> +              - mediatek,mt7629-nor
> +          - enum:
> +              - mediatek,mt8173-nor
> +      - items:
> +          - const: mediatek,mt8173-nor
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: clock used for spi bus
> +      - description: clock used for controller
> +
> +  clock-names:
> +    items:
> +      - const: "spi"
> +      - const: "sf"

Don't need quotes.

> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names

interrupts was required.

Add:

unevaluatedProperties: false

> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/mt8173-clk.h>
> +
> +    soc {
> +      #address-cells = <2>;
> +      #size-cells = <2>;
> +
> +      nor_flash: spi@...0d000 {
> +        compatible = "mediatek,mt8173-nor";
> +        reg = <0 0x1100d000 0 0xe0>;
> +        interrupts = <&spi_flash_irq>;
> +        clocks = <&pericfg CLK_PERI_SPI>, <&topckgen CLK_TOP_SPINFI_IFR_SEL>;
> +        clock-names = "spi", "sf";
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        flash@0 {
> +          compatible = "jedec,spi-nor";
> +          reg = <0>;
> +        };
> +      };
> +    };
> +