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Message-ID: <b6bc84f9-2ff6-40b6-8c1f-90a12f8d9149@linaro.org>
Date: Thu, 11 Jan 2024 18:20:30 +0100
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Subject: Re: [PATCH 1/3] dt-bindings: net: dp83826: add ti,cfg-dac-minus
 binding
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To: Catalin Popescu <catalin.popescu@leica-geosystems.com>,
 davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
 pabeni@redhat.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
 conor+dt@kernel.org, afd@ti.com, andrew@lunn.ch, hkallweit1@gmail.com,
 linux@armlinux.org.uk
Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org,
 linux-kernel@vger.kernel.org
References: <20240111161927.3689084-1-catalin.popescu@leica-geosystems.com>
From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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In-Reply-To: <20240111161927.3689084-1-catalin.popescu@leica-geosystems.com>
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On 11/01/2024 17:19, Catalin Popescu wrote:
> Add property ti,cfg-dac-minus to allow for voltage tuning
> of logical level -1 of the MLT-3 encoded data.

A nit, subject: drop second/last, redundant "binding". The "dt-bindings"
prefix is already stating that these are bindings.
See also:
https://elixir.bootlin.com/linux/v6.7-rc8/source/Documentation/devicetree/bindings/submitting-patches.rst#L18
> 
> Signed-off-by: Catalin Popescu <catalin.popescu@leica-geosystems.com>
> ---
>  Documentation/devicetree/bindings/net/ti,dp83822.yaml | 9 +++++++++
>  1 file changed, 9 insertions(+)

Don't add properties one by one. Especially if they are related.

> 
> diff --git a/Documentation/devicetree/bindings/net/ti,dp83822.yaml b/Documentation/devicetree/bindings/net/ti,dp83822.yaml
> index db74474207ed..2f010333be49 100644
> --- a/Documentation/devicetree/bindings/net/ti,dp83822.yaml
> +++ b/Documentation/devicetree/bindings/net/ti,dp83822.yaml
> @@ -62,6 +62,15 @@ properties:
>         for the PHY.  The internal delay for the PHY is fixed to 3.5ns relative
>         to transmit data.
>  
> +  ti,cfg-dac-minus:
> +    description: |
> +       DP83826 PHY only.
> +       Sets the voltage ratio of the logical level -1 for the MLT-3 encoded data.

ratio between what and what?

> +       0 = 50%, 1 = 56.25%, 2 = 62.50%, 3 = 68.75%, 4 = 75%, 5 = 81.25%, 6 = 87.50%,
> +       7 = 93.75%, 8 = 100%, 9 = 106.25%, 10 = 112.50%, 11 = 118.75%, 12 = 125%,
> +       13 = 131.25%, 14 = 137.50%, 15 = 143.75%, 16 = 150%.
> +    enum: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]

Missing: "default:"


>  

Best regards,
Krzysztof