Subject: Re: [PATCH] 2.6 I2C epson 8564 RTC chip
From: Ian Campbell <icampbell@arcom.com>
To: stefan.eletzhofer@eletztrick.de
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       Russell King - ARM Linux <linux@arm.linux.org.uk>
In-Reply-To: <20040429135829.GB23468@gonzo.local>
References: <20040429120250.GD10867@gonzo.local>
	 <1083242482.26762.30.camel@icampbell-debian>
	 <20040429135408.G16407@flint.arm.linux.org.uk>
	 <20040429135829.GB23468@gonzo.local>
Content-Type: text/plain
Organization: Arcom Control Systems
Message-Id: <1083248064.26762.46.camel@icampbell-debian>
Mime-Version: 1.0
Date: Thu, 29 Apr 2004 15:14:24 +0100
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On Thu, 2004-04-29 at 14:58, stefan.eletzhofer@eletztrick.de wrote:
> On Thu, Apr 29, 2004 at 01:54:08PM +0100, Russell King wrote:
> > If you look at the last 2.6-rmk patch, you'll notice that it contains
> > an abstracted RTC driver - I got peed off with writing the same code
> > to support the user interfaces to the variety of RTCs over and over
> > again.  (Ones which are simple 32-bit second counters with alarms
> > through to ones which return D/M/Y H:M:S.C format.)
> 
> Oh, I wasn't aware of that. I assume that one is not in linus bk tree already?

I don't think so. I found it in patch-2.6.0-test9-rmk1. In particular
arch/arm/common/rtctime.c and include/asm-arm/rtc.h which implement the
generic RTC bit. drivers/char/sa1100-rtc.c and
linux/arch/arm/mach-integrator/time.c have been ported to use it.

It looks very useful, and it would be pretty easy to make an i2c RTC use
it as well.

Ian.
-- 
Ian Campbell, Senior Design Engineer
                                        Web: http://www.arcom.com
Arcom, Clifton Road, 			Direct: +44 (0)1223 403 465
Cambridge CB1 7EA, United Kingdom	Phone:  +44 (0)1223 411 200


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