Re: [PATCH v1 17/43] dt-bindings: spi: Add Cirrus EP93xx

[Krzysztof Kozlowski]

On 01/06/2023 07:34, Nikita Shubin wrote:
> Add YAML bindings for ep93xx SoC SPI.
> 
> Signed-off-by: Nikita Shubin <nikita.shubin@xxxxxxxxxxx>
> ---
> 
> Notes:
>     v0 -> v1:
>     Krzysztof Kozlowski:
>     - replaced maintainers
>     - removed wildcards
>     - use fallback compatible and list all possible compatibles
>     - drop quotes in ref
>     - dropped "clock-names"
>     - dropped label
>     - fix ident
> 
>  .../devicetree/bindings/spi/spi-ep9301.yaml   | 69 +++++++++++++++++++
>  1 file changed, 69 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/spi/spi-ep9301.yaml
> 
> diff --git a/Documentation/devicetree/bindings/spi/spi-ep9301.yaml b/Documentation/devicetree/bindings/spi/spi-ep9301.yaml
> new file mode 100644
> index 000000000000..c363b25a3074
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/spi/spi-ep9301.yaml
> @@ -0,0 +1,69 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/spi/spi-ep9301.yaml#

Filename based on compatible, so missing prefix, wrong order of name
components.

This applies everywhere, not to some files only. Applied to all your
bindings.

> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: EP93xx SoC SPI controller
> +
> +maintainers:
> +  - Alexander Sverdlin <alexander.sverdlin@xxxxxxxxx>
> +  - Nikita Shubin <nikita.shubin@xxxxxxxxxxx>
> +
> +allOf:
> +  - $ref: spi-controller.yaml#
> +
> +properties:
> +  "#address-cells": true
> +  "#size-cells": true

Drop these two.

> +
> +  compatible:

Anyway, compatible is always first.

> +    oneOf:
> +      - const: cirrus,ep9301-spi
> +      - items:
> +          - enum:
> +              - cirrus,ep9302-spi
> +              - cirrus,ep9307-spi
> +              - cirrus,ep9312-spi
> +              - cirrus,ep9315-spi
> +          - const: cirrus,ep9301-spi
> +
> +  reg:
> +    items:
> +      - description: SPI registers region
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: SPI Controller reference clock source
> +
> +  cs-gpios: true

Drop, not needed.

> +
> +  cirrus,ep9301-use-dma:
> +    description: Flag indicating that the SPI should use dma
> +    type: boolean

In such case where are dmas? Unless you meant some internal dma
controller? In such case extend the description because now it just
duplicates property name.


> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/cirrus,ep93xx-clock.h>
> +    spi@808a0000 {
> +      compatible = "cirrus,ep9301-spi";
> +      reg = <0x808a0000 0x18>;
> +      interrupt-parent = <&vic1>;
> +      interrupts = <21>;
> +      clocks = <&syscon EP93XX_CLK_SPI>;
> +      cs-gpios = <&gpio5 2 0>;

Use proper gpio defines for flags.

> +      cirrus,ep9301-use-dma;
> +    };
> +
> +...

Best regards,
Krzysztof