linux-kernel - Re: [PATCH RFC leds + net-next v2 1/1] net: phy: marvell: add support for PHY LEDs via LED class

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Date:   Fri, 24 Jul 2020 12:24:03 +0200
From:   Pavel Machek <pavel@....cz>
To:     Marek Behun <marek.behun@....cz>
Cc:     Andrew Lunn <andrew@...n.ch>, linux-leds@...r.kernel.org,
        jacek.anaszewski@...il.com, Dan Murphy <dmurphy@...com>,
        Ondřej Jirman <megous@...ous.com>,
        netdev@...r.kernel.org, Russell King <linux@...linux.org.uk>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Gregory Clement <gregory.clement@...tlin.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC leds + net-next v2 1/1] net: phy: marvell: add
 support for PHY LEDs via LED class

Hi!

> > I expect some of this should be moved into the phylib core. We don't
> > want each PHY inventing its own way to do this. The core should
> > provide a framework and the PHY driver fills in the gaps.
> > 
> > Take a look at for example mscc_main.c and its LED information. It has
> > pretty similar hardware to the Marvell. And microchip.c also has LED
> > handling, etc.
> 
> OK, this makes sense. I will have to think about this a little.
> 
> My main issue though is whether one "hw-control" trigger should be
> registered via LED API and the specific mode should be chosen via
> another sysfs file as in this RFC, or whether each HW control mode
> should have its own trigger. The second solution would either result in
> a lot of registered triggers or complicate LED API, though...

If you register say 5 triggers.... that's okay. If you do like 1024
additional triggers (it happened before!)... well please don't.

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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