linux-kernel - Re: [PATCH 2/3] hwmon: Driver for OMAP3 temperature sensor

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Message-ID: <20141229190448.GA27124@roeck-us.net>
Date:	Mon, 29 Dec 2014 11:04:48 -0800
From:	Guenter Roeck <linux@...ck-us.net>
To:	Pavel Machek <pavel@....cz>
Cc:	Nishanth Menon <nm@...com>, Grazvydas Ignotas <notasas@...il.com>,
	Sebastian Reichel <sre@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	dt list <devicetree@...r.kernel.org>,
	Pawel Moll <pawel.moll@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Tony Lindgren <tony@...mide.com>,
	Kumar Gala <galak@...eaurora.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	lm-sensors@...sensors.org, Rob Herring <robh+dt@...nel.org>,
	Jean Delvare <jdelvare@...e.de>,
	Benoît Cousson <bcousson@...libre.com>,
	Pali Rohar <pali.rohar@...il.com>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 2/3] hwmon: Driver for OMAP3 temperature sensor

On Mon, Dec 29, 2014 at 07:15:56PM +0100, Pavel Machek wrote:
> On Mon 2014-12-29 12:01:03, Nishanth Menon wrote:
> > On Mon, Dec 29, 2014 at 11:52 AM, Grazvydas Ignotas <notasas@...il.com> wrote:
> > > On Fri, Dec 26, 2014 at 2:34 PM, Sebastian Reichel <sre@...nel.org> wrote:
> > >> OMAP34xx and OMAP36xx processors contain a register in the syscon area,
> > >> which can be used to determine the SoCs temperature. This patch provides
> > >> a DT based driver for the temperature sensor based on an older driver
> > >> written by Peter De Schrijver for the Nokia N900 and N9.
> > >
> > > The sensor looks like an earlier iteration of sensors used in newer
> > > OMAPs, which are already supported by maybe
> > > drivers/thermal/ti-soc-thermal/ , maybe it would make sense to update
> > > that driver instead?
> > 
> > Just to be clear - OMAP4 is the first time that the sensors were
> > reliable enough to be used.
> 
> When testing initial version of the patch, they seem to work very well
> in the omap3 case.
> 
Pavel,

can you look into the omap4 thermal driver to see if it can be used ?

Thanks,
Guenter
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