From: Marek Vasut <marex@denx.de>
To: "Lars-Peter Clausen" <lars@metafoo.de>
Cc: Hector Palacios <hector.palacios@digi.com>,
linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org,
devicetree-discuss@lists.ozlabs.org,
alexandre.belloni@free-electrons.com, jic23@kernel.org,
fabio.estevam@freescale.com,
Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Subject: Re: [PATCH v3 2/5] ARM: dts: add reference voltage property for MXS LRADC
Date: Tue, 23 Jul 2013 00:06:53 +0200 [thread overview]
Message-ID: <201307230006.53434.marex@denx.de> (raw)
In-Reply-To: <51ED7B47.2090104@metafoo.de>
Dear Lars-Peter Clausen,
> On 07/22/2013 04:04 PM, Hector Palacios wrote:
> > Some LRADC channels have fixed pre-dividers so they can measure
> > different voltages at full scale. The reference voltage allows to
> > expose a scaling attribute through the IIO sysfs so that a user can
> > compute the real voltage out of a measured sample value.
>
> I've said before that I'm not convinced that this is the right way to
> implement this. And considering what Thomas said here
> http://www.mail-archive.com/devicetree-discuss@lists.ozlabs.org/msg36691.ht
> ml I guess I'm not alone with that opinion.
>
> - Lars
He's talking about different versions of the IP block, this is the same IP
block, just connected to different inputs.
Best regards,
Marek Vasut
WARNING: multiple messages have this Message-ID (diff)
From: Marek Vasut <marex-ynQEQJNshbs@public.gmane.org>
To: Lars-Peter Clausen <lars-Qo5EllUWu/uELgA04lAiVw@public.gmane.org>
Cc: Hector Palacios <hector.palacios-i7dp0qKlBMg@public.gmane.org>,
linux-iio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org,
jic23-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
fabio.estevam-KZfg59tc24xl57MIdRCFDg@public.gmane.org,
Thomas Petazzoni
<thomas.petazzoni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
Subject: Re: [PATCH v3 2/5] ARM: dts: add reference voltage property for MXS LRADC
Date: Tue, 23 Jul 2013 00:06:53 +0200 [thread overview]
Message-ID: <201307230006.53434.marex@denx.de> (raw)
In-Reply-To: <51ED7B47.2090104-Qo5EllUWu/uELgA04lAiVw@public.gmane.org>
Dear Lars-Peter Clausen,
> On 07/22/2013 04:04 PM, Hector Palacios wrote:
> > Some LRADC channels have fixed pre-dividers so they can measure
> > different voltages at full scale. The reference voltage allows to
> > expose a scaling attribute through the IIO sysfs so that a user can
> > compute the real voltage out of a measured sample value.
>
> I've said before that I'm not convinced that this is the right way to
> implement this. And considering what Thomas said here
> http://www.mail-archive.com/devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org/msg36691.ht
> ml I guess I'm not alone with that opinion.
>
> - Lars
He's talking about different versions of the IP block, this is the same IP
block, just connected to different inputs.
Best regards,
Marek Vasut
next prev parent reply other threads:[~2013-07-22 22:36 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-22 14:03 [PATCH v3 0/5] iio: mxs-lradc: add support to optional divider_by_two Hector Palacios
2013-07-22 14:03 ` Hector Palacios
2013-07-22 14:03 ` [PATCH v3 1/5] iio: mxs-lradc: change the realbits to 12 Hector Palacios
2013-07-22 14:03 ` Hector Palacios
2013-08-13 21:24 ` Jonathan Cameron
2013-08-13 21:24 ` Jonathan Cameron
2013-07-22 14:04 ` [PATCH v3 2/5] ARM: dts: add reference voltage property for MXS LRADC Hector Palacios
2013-07-22 14:04 ` Hector Palacios
2013-07-22 18:34 ` Lars-Peter Clausen
2013-07-22 18:34 ` Lars-Peter Clausen
2013-07-22 22:06 ` Marek Vasut [this message]
2013-07-22 22:06 ` Marek Vasut
2013-07-26 9:23 ` Alexandre Belloni
2013-07-26 9:23 ` Alexandre Belloni
2013-08-13 21:23 ` Jonathan Cameron
2013-08-13 21:23 ` Jonathan Cameron
2013-08-14 14:44 ` Pawel Moll
2013-08-14 14:44 ` Pawel Moll
2013-08-14 14:44 ` Pawel Moll
2013-08-21 22:13 ` Alexandre Belloni
2013-08-21 22:13 ` Alexandre Belloni
2013-08-22 6:17 ` Jonathan Cameron
2013-08-22 6:17 ` Jonathan Cameron
2013-08-22 16:51 ` Pawel Moll
2013-08-23 23:00 ` Jonathan Cameron
2013-09-23 12:47 ` Alexandre Belloni
2013-09-23 12:47 ` Alexandre Belloni
2013-09-23 13:39 ` Hector Palacios
2013-09-23 13:39 ` Hector Palacios
2013-08-22 8:05 ` Hector Palacios
2013-08-22 8:05 ` Hector Palacios
2013-08-22 16:50 ` Pawel Moll
2013-08-22 16:50 ` Pawel Moll
2013-08-22 16:50 ` Pawel Moll
2013-08-22 16:41 ` Pawel Moll
2013-08-22 16:41 ` Pawel Moll
2013-08-22 16:41 ` Pawel Moll
2013-08-22 17:00 ` Lars-Peter Clausen
2013-08-22 17:00 ` Lars-Peter Clausen
2013-07-22 14:04 ` [PATCH v3 3/5] iio: mxs-lradc: add scale attribute to channels Hector Palacios
2013-07-22 14:04 ` Hector Palacios
2013-07-22 14:04 ` [PATCH v3 4/5] iio: mxs-lradc: add scale_available file " Hector Palacios
2013-07-22 14:04 ` Hector Palacios
2013-07-22 22:36 ` Marek Vasut
2013-07-23 7:00 ` Hector Palacios
2013-07-23 7:00 ` Hector Palacios
2013-07-23 8:46 ` Lars-Peter Clausen
2013-07-23 8:46 ` Lars-Peter Clausen
2013-07-23 13:25 ` Hector Palacios
2013-07-23 13:25 ` Hector Palacios
2013-07-26 13:17 ` Alexandre Belloni
2013-07-26 13:17 ` Alexandre Belloni
2013-07-26 16:13 ` Jonathan Cameron
2013-07-26 16:13 ` Jonathan Cameron
2013-08-07 7:50 ` Alexandre Belloni
2013-08-07 7:50 ` Alexandre Belloni
2013-08-13 21:26 ` Jonathan Cameron
2013-08-13 21:26 ` Jonathan Cameron
2013-07-22 14:04 ` [PATCH v3 5/5] iio: mxs-lradc: add write_raw function to modify scale Hector Palacios
2013-07-22 14:04 ` Hector Palacios
2013-07-22 22:37 ` Marek Vasut
2013-07-22 22:37 ` Marek Vasut
2013-12-06 16:28 ` Harald Geyer
2013-12-06 16:32 ` Alexandre Belloni
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