netdev - Re: [net-next PATCH v6 10/16] dt-bindings: leds: Document support for generic ethernet LEDs

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Date:   Fri, 31 Mar 2023 15:09:22 -0500
From:   Rob Herring <robh@...nel.org>
To:     Christian Marangi <ansuelsmth@...il.com>
Cc:     Pavel Machek <pavel@....cz>, Lee Jones <lee@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        John Crispin <john@...ozen.org>, linux-leds@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-arm-msm@...r.kernel.org
Subject: Re: [net-next PATCH v6 10/16] dt-bindings: leds: Document support
 for generic ethernet LEDs

On Mon, Mar 27, 2023 at 04:10:25PM +0200, Christian Marangi wrote:
> Add documentation for support of generic ethernet LEDs.
> These LEDs are ethernet port LED and are controllable by the ethernet
> controller or the ethernet PHY.
> 
> A port may expose multiple LEDs and reg is used to provide an index to
> differentiate them.
> Ethernet port LEDs follow generic LED implementation.
> 
> Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
> ---
>  .../bindings/leds/leds-ethernet.yaml          | 76 +++++++++++++++++++
>  1 file changed, 76 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/leds/leds-ethernet.yaml
> 
> diff --git a/Documentation/devicetree/bindings/leds/leds-ethernet.yaml b/Documentation/devicetree/bindings/leds/leds-ethernet.yaml
> new file mode 100644
> index 000000000000..0a03d65beea0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/leds/leds-ethernet.yaml
> @@ -0,0 +1,76 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/leds/leds-ethernet.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Common properties for the ethernet port LED.
> +
> +maintainers:
> +  - Christian Marangi <ansuelsmth@...il.com>
> +
> +description:
> +  Bindings for the LEDs present in ethernet port and controllable by
> +  the ethernet controller or the ethernet PHY regs.
> +
> +  These LEDs provide the same feature of a normal LED and follow
> +  the same LED definitions.
> +
> +  An ethernet port may expose multiple LEDs, reg binding is used to
> +  differentiate them.
> +
> +properties:
> +  '#address-cells':
> +    const: 1
> +
> +  '#size-cells':
> +    const: 0
> +
> +patternProperties:
> +  '^led@[a-f0-9]+$':
> +    $ref: /schemas/leds/common.yaml#
> +
> +    properties:
> +      reg:
> +        maxItems: 1
> +        description:
> +          This define the LED index in the PHY or the MAC. It's really
> +          driver dependent and required for ports that define multiple
> +          LED for the same port.
> +
> +    required:
> +      - reg
> +
> +    unevaluatedProperties: false

This does nothing to help the issues I raised. If the 'led' nodes have 
custom properties, then you need a schema for the 'led' nodes and just 
the 'led' nodes. Not a schema for the 'leds' container node.

If your not going to allow extending, then this can all be 1 file like 
you had (with unevaluatedProperties added of course).

Rob