Re: [PATCH] net: fec: Add "phy-reset-active-low" property to DT

From: Arnd Bergmann
Date: Tue Feb 09 2016 - 09:47:43 EST


On Monday 08 February 2016 22:51:38 Andrew Lunn wrote:
> On Mon, Feb 08, 2016 at 10:46:42PM +0100, Arnd Bergmann wrote:
> > On Monday 08 February 2016 21:21:13 Bernhard Walle wrote:
> > > We need that for a custom hardware that needs the reverse reset
> > > sequence.
> > >
> > > Signed-off-by: Bernhard Walle <bernhard@xxxxxxxxx>
> > >
> >
> > Why can't this be specified in the gpios property?
>
> Backwards compatibility. The flag has always been ignored until now,
> yet various DTs have a flag value which are active low. If suddenly it
> worked, various boards would break

Ok, I see.

Arnd