linux-kernel - Re: [PATCH v2] spi: atmel: convert spi

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Message-ID: <315d4fd3-4f50-5d3e-ef83-e4c8604814af@linaro.org>
Date:   Mon, 4 Jul 2022 14:52:27 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Sergiu Moga <sergiu.moga@...rochip.com>, broonie@...nel.org,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        nicolas.ferre@...rochip.com, alexandre.belloni@...tlin.com,
        claudiu.beznea@...rochip.com
Cc:     linux-spi@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Kavyasree.Kotagiri@...rochip.com, UNGLinuxDriver@...rochip.com,
        tudor.ambarus@...rochip.com
Subject: Re: [PATCH v2] spi: atmel: convert spi_atmel to json-schema

On 04/07/2022 10:31, Sergiu Moga wrote:
> Convert SPI DT binding for Atmel/Microchip SoCs to YAML schema.
> 
> Signed-off-by: Sergiu Moga <sergiu.moga@...rochip.com>
> ---
> 
> v1 -> v2:
> - change subject headline prefix from "dt-bindings: spi" to "spi: atmel"

Should be:
spi: dt-bindings: atmel,spi: convert to json-schema
(or to DT schema)


> - change maintainer
> - kept the compatbile as items (instead of switching to enums) and at91rm9200
> as fallback for sam9x60, since the evolution of IP's is incremental.
> - removed unnecessay "cs-gpios" property and descriptions
> - added min/max for fifo-size property.
> 
> 
>  .../devicetree/bindings/spi/atmel,spi.yaml    | 77 +++++++++++++++++++
>  .../devicetree/bindings/spi/spi_atmel.txt     | 36 ---------
>  2 files changed, 77 insertions(+), 36 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/spi/atmel,spi.yaml
>  delete mode 100644 Documentation/devicetree/bindings/spi/spi_atmel.txt
> 
> diff --git a/Documentation/devicetree/bindings/spi/atmel,spi.yaml b/Documentation/devicetree/bindings/spi/atmel,spi.yaml
> new file mode 100644
> index 000000000000..d627fc9315bc
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/spi/atmel,spi.yaml
> @@ -0,0 +1,77 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +# Copyright (C) 2022 Microchip Technology, Inc. and its subsidiaries
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/spi/atmel,spi.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Atmel SPI device
> +
> +maintainers:
> +  - Tudor Ambarus <tudor.ambarus@...rochip.com>
> +
> +allOf:
> +  - $ref: spi-controller.yaml#
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:
> +          - const: atmel,at91rm9200-spi
> +      - items:
> +          - const: microchip,sam9x60-spi
> +          - const: atmel,at91rm9200-spi
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clock-names:
> +    contains:
> +      const: spi_clk
> +
> +  clocks:
> +    maxItems: 1
> +
> +  atmel,fifo-size:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    description: |
> +      Maximum number of data the RX and TX FIFOs can store for FIFO
> +      capable SPI controllers.
> +    minimum: 16
> +    maximum: 32
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clock-names
> +  - clocks

In properties it's clock-names followed by clocks, so better to keep
same order here.

> +
> +unevaluatedProperties: false
> +



Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Best regards,
Krzysztof