linux-kernel - Re: [PATCH] net: stmmac: dwmac-sun8i: fix allwinner,leds-active-low handling

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Message-ID: <20171129154733.gersgylwvgrdam26@flea.lan>
Date:   Wed, 29 Nov 2017 16:47:33 +0100
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     Corentin Labbe <clabbe.montjoie@...il.com>,
        alexandre.torgue@...com, netdev@...r.kernel.org,
        linux-sunxi@...glegroups.com, linux-kernel@...r.kernel.org,
        wens@...e.org, peppe.cavallaro@...com,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] net: stmmac: dwmac-sun8i: fix allwinner,leds-active-low
 handling

On Wed, Nov 29, 2017 at 04:37:12PM +0100, Andrew Lunn wrote:
> On Wed, Nov 29, 2017 at 10:02:40AM +0100, Corentin Labbe wrote:
> > On Tue, Nov 28, 2017 at 06:38:26PM +0100, Andrew Lunn wrote:
> > > On Tue, Nov 28, 2017 at 05:48:22PM +0100, Corentin Labbe wrote:
> > > > The driver expect "allwinner,leds-active-low" to be in PHY node, but
> > > > the binding doc expect it to be in MAC node.
> > > > 
> > > > Since all board DT use it also in MAC node, the driver need to search
> > > > allwinner,leds-active-low in MAC node.
> > > 
> > > Hi Corentin
> > > 
> > > I'm having trouble working out how this worked before. This is code
> > > you moved around, when adding external/internal MDIOs. But the very
> > > first version of this driver code used priv->plat->phy_node. Did that
> > > somehow point to the MAC node when the internal PHY is used? Or has it
> > > been broken all the time?
> > > 
> > 
> > Hello
> > 
> 
> > Since this feature control only when the activity LED need to blink,
> > nobody see that it was broken.
> 
> Hi Corentin
> 
> So it never worked?
> 
> If it never worked, moving the DT properties into the PHY node, where
> they belong, won't introduce a regression :-)

That's even truer since it's been queued for 4.15 which hasn't been
released yet.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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