Date:   Wed, 15 Mar 2023 02:58:23 +0100
From:   Andrew Lunn <andrew@lunn.ch>
To:     Vladimir Oltean <olteanv@gmail.com>
Cc:     Christian Marangi <ansuelsmth@gmail.com>,
        Florian Fainelli <f.fainelli@gmail.com>,
        "David S. Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Heiner Kallweit <hkallweit1@gmail.com>,
        Russell King <linux@armlinux.org.uk>,
        Gregory Clement <gregory.clement@bootlin.com>,
        Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
        Andy Gross <agross@kernel.org>,
        Bjorn Andersson <andersson@kernel.org>,
        Konrad Dybcio <konrad.dybcio@linaro.org>,
        John Crispin <john@phrozen.org>, netdev@vger.kernel.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        linux-arm-msm@vger.kernel.org, Lee Jones <lee@kernel.org>,
        linux-leds@vger.kernel.org
Subject: Re: [net-next PATCH v3 09/14] dt-bindings: net: dsa: dsa-port:
 Document support for LEDs node
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On Wed, Mar 15, 2023 at 02:50:00AM +0200, Vladimir Oltean wrote:
> On Tue, Mar 14, 2023 at 11:15:11AM +0100, Christian Marangi wrote:
> > Document support for LEDs node in dsa port.
> > Switch may support different LEDs that can be configured for different
> > operation like blinking on traffic event or port link.
> > 
> > Also add some Documentation to describe the difference of these nodes
> > compared to PHY LEDs, since dsa-port LEDs are controllable by the switch
> > regs and the possible intergated PHY doesn't have control on them.
> > 
> > Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
> > ---
> >  .../devicetree/bindings/net/dsa/dsa-port.yaml | 21 +++++++++++++++++++
> >  1 file changed, 21 insertions(+)
> 
> Of all schemas, why did you choose dsa-port.yaml? Why not either something
> hardware specific (qca8k.yaml) or more generic (ethernet-controller.yaml)?

The binding should be generic. So qca8k.yaml is way to specific. The
Marvell switch should re-use it at some point.

Looking at the hierarchy, ethernet-controller.yaml would work since
dsa-port includes ethernet-switch-port, which includes
ethernet-controller.

These are MAC LEDs, and there is no reason why a standalone MAC in a
NIC could not implement such LEDs. So yes,
ethernet-controller.yaml.

Is there actually anything above ethernet-controller.yaml? This is
about a netdev really, so a wifi MAC, or even a CAN MAC could also use
the binding....

    Andrew