netdev - Re: [PATCH v3 1/3] dt-bindings: can: ctucanfd: add another clock for HW timestamping

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Date:   Sun, 18 Sep 2022 10:56:39 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Matej Vasilevski <matej.vasilevski@...nam.cz>,
        Pavel Pisa <pisa@....felk.cvut.cz>,
        Ondrej Ille <ondrej.ille@...il.com>,
        Wolfgang Grandegger <wg@...ndegger.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     linux-can@...r.kernel.org, netdev@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH v3 1/3] dt-bindings: can: ctucanfd: add another clock for
 HW timestamping

On 15/09/2022 00:12, Matej Vasilevski wrote:
> Add second clock phandle to specify the timestamping clock.
> 
> Signed-off-by: Matej Vasilevski <matej.vasilevski@...nam.cz>
> ---
>  .../bindings/net/can/ctu,ctucanfd.yaml        | 19 +++++++++++++++----
>  1 file changed, 15 insertions(+), 4 deletions(-)
> 

Thank you for your patch. There is something to discuss/improve.

> diff --git a/Documentation/devicetree/bindings/net/can/ctu,ctucanfd.yaml b/Documentation/devicetree/bindings/net/can/ctu,ctucanfd.yaml
> index 4635cb96fc64..432f0e3ed828 100644
> --- a/Documentation/devicetree/bindings/net/can/ctu,ctucanfd.yaml
> +++ b/Documentation/devicetree/bindings/net/can/ctu,ctucanfd.yaml
> @@ -44,9 +44,19 @@ properties:
>  
>    clocks:
>      description: |
> -      phandle of reference clock (100 MHz is appropriate
> -      for FPGA implementation on Zynq-7000 system).
> -    maxItems: 1
> +      Phandle of reference clock (100 MHz is appropriate for FPGA
> +      implementation on Zynq-7000 system). Optionally add a phandle to
> +      the timestamping clock connected to timestamping counter, if used.
> +    minItems: 1
> +    items:
> +      - description: core clock
> +      - description: timestamping clock
> +
> +  clock-names:
> +    minItems: 1
> +    items:
> +      - const: core-clk
> +      - const: ts-clk

Skip the -clk suffixes, so just "core" and "ts".


Best regards,
Krzysztof