linux-kernel - Re: [PATCH] dt-bindings: hwmon: Increase max number of io-channels

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Message-ID: <20231130-power-rubbed-fbf64a8c6978@spud>
Date:   Thu, 30 Nov 2023 14:58:41 +0000
From:   Conor Dooley <conor@...nel.org>
To:     Michal Simek <michal.simek@....com>
Cc:     linux-kernel@...r.kernel.org, monstr@...str.eu,
        michal.simek@...inx.com, git@...inx.com,
        Conor Dooley <conor+dt@...nel.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Jean Delvare <jdelvare@...e.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-hwmon@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: hwmon: Increase max number of io-channels

On Thu, Nov 30, 2023 at 09:46:54AM +0100, Michal Simek wrote:
> arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts is defining 30 channels
> that's why increase it.
> But AMS binding defines 51 channels
> Documentation/devicetree/bindings/iio/adc/xlnx,zynqmp-ams.yaml
> that's why increase number to 51.

Please write commit messages for bindings in terms of how they relate to
some hardware. In this case I think it would be sufficient to say that
the Analog Monitoring system has 51 channels, the opening sentence about
the dts as justification provides no actionable information.
Acked-by: Conor Dooley <conor.dooley@...rochip.com>

Cheers,
Conor.

> Signed-off-by: Michal Simek <michal.simek@....com>
> ---
> 
>  Documentation/devicetree/bindings/hwmon/iio-hwmon.yaml | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/hwmon/iio-hwmon.yaml b/Documentation/devicetree/bindings/hwmon/iio-hwmon.yaml
> index e5b24782f448..be5c7d4579bb 100644
> --- a/Documentation/devicetree/bindings/hwmon/iio-hwmon.yaml
> +++ b/Documentation/devicetree/bindings/hwmon/iio-hwmon.yaml
> @@ -19,7 +19,7 @@ properties:
>  
>    io-channels:
>      minItems: 1
> -    maxItems: 8 # Should be enough
> +    maxItems: 51 # Should be enough
>      description: >
>        List of phandles to ADC channels to read the monitoring values
>  
> -- 
> 2.36.1
> 

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