linux-kernel - Re: [net-next PATCH v5 15/15] arm: mvebu: dt: Add PHY LED support for 370-rd WAN port

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Date:   Thu, 23 Mar 2023 18:02:35 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Pavel Machek <pavel@....cz>
Cc:     Christian Marangi <ansuelsmth@...il.com>,
        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>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        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>,
        Lee Jones <lee@...nel.org>, John Crispin <john@...ozen.org>,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-arm-msm@...r.kernel.org, linux-leds@...r.kernel.org
Subject: Re: [net-next PATCH v5 15/15] arm: mvebu: dt: Add PHY LED support
 for 370-rd WAN port

On Thu, Mar 23, 2023 at 01:04:53PM +0100, Pavel Machek wrote:
> Hi!
> 
> > From: Andrew Lunn <andrew@...n.ch>
> > 
> > The WAN port of the 370-RD has a Marvell PHY, with one LED on
> > the front panel. List this LED in the device tree.
> > 
> > Signed-off-by: Andrew Lunn <andrew@...n.ch>
> > Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
> 
> > @@ -135,6 +136,19 @@ &mdio {
> >  	pinctrl-names = "default";
> >  	phy0: ethernet-phy@0 {
> >  		reg = <0>;
> > +		leds {
> > +			#address-cells = <1>;
> > +			#size-cells = <0>;
> > +
> > +			led@0 {
> > +				reg = <0>;
> > +				label = "WAN";
> > +				color = <LED_COLOR_ID_WHITE>;
> > +				function = LED_FUNCTION_LAN;
> > +				function-enumerator = <1>;
> > +				linux,default-trigger = "netdev";
> > +			};
> > +		};
> >  	};
> >  
> 
> How will this end up looking in sysfs?

Hi Pavel

It is just a plain boring LED, so it will look like all other LEDs.
There is nothing special here.

> Should documentation be added to Documentation/leds/leds-blinkm.rst
>  ?

This has nothing to do with blinkm, which appears to be an i2c LED
driver.

	Andrew