linux-kernel - Re: [PATCH 2/3] ARM: dts: uniphier: add ProXstream2 Vodka board support

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Message-ID: <4176900.TvBCpZCKl2@wuerfel>
Date:	Fri, 23 Oct 2015 22:10:01 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc:	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	arm@...nel.org, Russell King <linux@....linux.org.uk>,
	devicetree@...r.kernel.org, Kumar Gala <galak@...eaurora.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>
Subject: Re: [PATCH 2/3] ARM: dts: uniphier: add ProXstream2 Vodka board support

On Wednesday 21 October 2015 17:49:12 Masahiro Yamada wrote:
> > Right.  In-kernel drivers can handle it nicely.
> >
> > Also, we can write a device tree that specifies device connection
> > hierarchy like follows.
> > The device names will appear under /sys/ directory and user-land
> > applications can check them.
> >
> > &i2c4 {
> >         demodulator {
> >                  compatible = "...";
> >
> >         };
> > };
> >
> > &i2c6 {
> >          hdmi_tx {
> >
> >                    compatible = "...";
> >          };
> > }
> >
> >
> > I understand that I2C bus number assumption is avoidable,
> > but I am still not fully convinced.
> >
> > Matching /dev/i2c* and the real hardware block ID (this is written in
> > the SoC spec book)
> > makes things clearer, I think.
> >
> 
> 
> Anyway, this version is unacceptable, right?

Sorry for the late reply.

I would not call it unacceptable, just a bit unpleasant. We can merge it
if you cannot come up with a nicer way to do this. It was a good idea
to split to resend the series without this patch, but the replacement
to delete the aliases also doesn't look nice. If we can't come up with
a better way to do this, I'd suggest you re-send this patch and add a
bit more explanation into the changelog as to why you want this to
be done in an unusual way.

	Arnd
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