From: Maxime Ripard <maxime.ripard@free-electrons.com>
To: Jonathan Cameron <jic23@kernel.org>
Cc: Denis CIOCCA <denis.ciocca@st.com>,
Shawn Guo <shawn.guo@linaro.org>,
"linux-iio@vger.kernel.org" <linux-iio@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
Alexandre Belloni <alexandre.belloni@free-electrons.com>,
Brian Lilly <brian@crystalfontz.com>,
Brent-Crosby <brent@crystalfontz.com>, Jim Wall <jimwall@q.com>
Subject: Re: [RFC PATCH 0/3] DT support for ST micro accelerometers and gyroscopes
Date: Mon, 25 Nov 2013 10:40:44 +0100 [thread overview]
Message-ID: <20131125094044.GE3176@lukather> (raw)
In-Reply-To: <52926901.9080004@kernel.org>
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Hi Jonathan,
On Sun, Nov 24, 2013 at 09:00:49PM +0000, Jonathan Cameron wrote:
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>
> On 11/21/13 13:14, Maxime Ripard wrote:
> > Hi Denis,
> >
> > On Thu, Nov 21, 2013 at 12:41:24PM +0100, Denis CIOCCA wrote:
> > > only one point: it's possible to use the same names with DT?
> > > (using _ instead of -)
> >
> > Yes, it is, but only for i2c as far as I'm aware, and usually the
> > DT compatibles are with - as a separator (I looked into the ePAPR,
> > but couldn't get any explanations or requirements on this, even
> > though it's used in all of their examples)
>
> In other discussions, where the defacto i2c device tree bindings have
> been followed, the conclusion has been that to change to a - from _
> would result in userspace ABI changes, so whilst no one wants _
> the discussion has concluded we can't really avoid it.
What kind of userspace ABI changes are we talking about?
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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From: maxime.ripard@free-electrons.com (Maxime Ripard)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH 0/3] DT support for ST micro accelerometers and gyroscopes
Date: Mon, 25 Nov 2013 10:40:44 +0100 [thread overview]
Message-ID: <20131125094044.GE3176@lukather> (raw)
In-Reply-To: <52926901.9080004@kernel.org>
Hi Jonathan,
On Sun, Nov 24, 2013 at 09:00:49PM +0000, Jonathan Cameron wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On 11/21/13 13:14, Maxime Ripard wrote:
> > Hi Denis,
> >
> > On Thu, Nov 21, 2013 at 12:41:24PM +0100, Denis CIOCCA wrote:
> > > only one point: it's possible to use the same names with DT?
> > > (using _ instead of -)
> >
> > Yes, it is, but only for i2c as far as I'm aware, and usually the
> > DT compatibles are with - as a separator (I looked into the ePAPR,
> > but couldn't get any explanations or requirements on this, even
> > though it's used in all of their examples)
>
> In other discussions, where the defacto i2c device tree bindings have
> been followed, the conclusion has been that to change to a - from _
> would result in userspace ABI changes, so whilst no one wants _
> the discussion has concluded we can't really avoid it.
What kind of userspace ABI changes are we talking about?
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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next prev parent reply other threads:[~2013-11-25 9:40 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-19 15:50 [RFC PATCH 0/3] DT support for ST micro accelerometers and gyroscopes Maxime Ripard
2013-11-19 15:50 ` Maxime Ripard
2013-11-19 15:50 ` [RFC PATCH 1/3] iio: accel: Add device tree probing for STMicro accelerometers Maxime Ripard
2013-11-19 15:50 ` Maxime Ripard
2013-11-30 12:04 ` Jonathan Cameron
2013-11-30 12:04 ` Jonathan Cameron
2013-11-30 13:42 ` Maxime Ripard
2013-11-30 13:42 ` Maxime Ripard
2013-11-19 15:50 ` [RFC PATCH 2/3] iio: accel: Add device tree probing for STMicro gyroscopes Maxime Ripard
2013-11-19 15:50 ` Maxime Ripard
2013-11-19 15:50 ` [RFC PATCH 3/3] ARM: cfa10057: Add the accelerometer and gyroscope to the device tree Maxime Ripard
2013-11-19 15:50 ` Maxime Ripard
2013-11-21 11:41 ` [RFC PATCH 0/3] DT support for ST micro accelerometers and gyroscopes Denis CIOCCA
2013-11-21 11:41 ` Denis CIOCCA
2013-11-21 13:14 ` Maxime Ripard
2013-11-21 13:14 ` Maxime Ripard
2013-11-24 21:00 ` Jonathan Cameron
2013-11-24 21:00 ` Jonathan Cameron
2013-11-25 8:37 ` Denis CIOCCA
2013-11-25 8:37 ` Denis CIOCCA
2013-11-25 9:40 ` Maxime Ripard [this message]
2013-11-25 9:40 ` Maxime Ripard
2013-11-30 12:02 ` Jonathan Cameron
2013-11-30 12:02 ` Jonathan Cameron
2013-11-30 12:02 ` Jonathan Cameron
2013-11-30 13:04 ` Jean Delvare
2013-11-30 13:04 ` Jean Delvare
2013-11-30 13:04 ` Jean Delvare
2013-12-03 21:29 ` Maxime Ripard
2013-12-03 21:29 ` Maxime Ripard
2013-12-03 21:29 ` Maxime Ripard
2013-12-03 21:39 ` Jean Delvare
2013-12-03 21:39 ` Jean Delvare
2013-12-03 21:39 ` Jean Delvare
2013-11-30 14:13 ` Maxime Ripard
2013-11-30 14:13 ` Maxime Ripard
2013-11-30 14:13 ` Maxime Ripard
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