linux-kernel - Re: [PATCH] dt-bindings: soc: samsung: usi: refer to dtschema for children

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Message-ID: <CAPLW+4m9u4yFz84dQaMxNqCPauW6JTsOWRo5iJrkexHXOOsahw@mail.gmail.com>
Date:   Fri, 11 Feb 2022 18:04:08 +0200
From:   Sam Protsenko <semen.protsenko@...aro.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: soc: samsung: usi: refer to dtschema for children

On Tue, 8 Feb 2022 at 21:41, Krzysztof Kozlowski
<krzysztof.kozlowski@...onical.com> wrote:
>
> Explicitly reference the dtschema for USI children implementing specific
> serial protocol (I2C, SPI, UART).  The SPI schema is not yet accepted,
> so it will be provided later.
>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
> ---
>  .../bindings/soc/samsung/exynos-usi.yaml      | 19 +++++++++++--------
>  1 file changed, 11 insertions(+), 8 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml b/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml
> index 58f2e9d8bb0e..f3aae7e0e2e6 100644
> --- a/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml
> +++ b/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml
> @@ -18,11 +18,7 @@ description: |
>    selects which particular function will be used.
>
>    Refer to next bindings documentation for information on protocol subnodes that
> -  can exist under USI node:

This whole paragraph doesn't make much sense now, because the doc
links it refers to are removed in this patch. Maybe it's better to
just remove the whole paragraph?

> -
> -  [1] Documentation/devicetree/bindings/serial/samsung_uart.yaml
> -  [2] Documentation/devicetree/bindings/i2c/i2c-exynos5.txt
> -  [3] Documentation/devicetree/bindings/spi/spi-samsung.txt
> +  can exist under USI node.
>
>  properties:
>    $nodename:
> @@ -75,10 +71,17 @@ properties:
>        This property is optional.
>
>  patternProperties:
> -  # All other properties should be child nodes
> -  "^(serial|spi|i2c)@[0-9a-f]+$":
> +  "^i2c@[0-9a-f]+$":
> +    $ref: /schemas/i2c/i2c-exynos5.yaml
> +    description: Child node describing underlying I2C
> +
> +  "^serial@[0-9a-f]+$":
> +    $ref: /schemas/serial/samsung_uart.yaml
> +    description: Child node describing underlying UART/serial
> +
> +  "^spi@[0-9a-f]+$":
>      type: object
> -    description: Child node describing underlying USI serial protocol
> +    description: Child node describing underlying SPI
>
>  required:
>    - compatible
> --
> 2.32.0
>