linux-kernel - Re: [patch 2.6.20-rc3 1/3] rtc-cmos driver

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Message-ID: <20070107090235.GA21613@flint.arm.linux.org.uk>
Date:	Sun, 7 Jan 2007 09:02:35 +0000
From:	Russell King <rmk+lkml@....linux.org.uk>
To:	David Brownell <david-b@...bell.net>
Cc:	Woody Suwalski <woodys@...dros.com>,
	Alessandro Zummo <alessandro.zummo@...ertech.it>,
	rtc-linux@...glegroups.com,
	Linux Kernel list <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...l.org>
Subject: Re: [patch 2.6.20-rc3 1/3] rtc-cmos driver

On Sat, Jan 06, 2007 at 01:17:25PM -0800, David Brownell wrote:
> On Saturday 06 January 2007 9:17 am, Woody Suwalski wrote:
> > >> There are PPC, M68K, SPARC, and other boards that could also
> > >> use this; ARMs tend to integrate some other RTC on-chip.  ...
> > 
> > > Let me put that differently.  That should be done as a separate
> > > patch, adding (a) that platform_device, and maybe platform_data
> > > if it's got additional alarm registers, and (b) Kconfig support
> > > to let that work.  I'd call it a "patch #4 of 3".  ;)
> > > ...
> > 
> > I will try to play with the new code on Monday on ARM...
> 
> Thanks.  Could you describe your ARM board?  None of mine have an
> RTC using this register API.  Does it support system sleep states
> (/sys/power/state) with a wakeup-capable (enable_irq_wake) RTC irq? 

Woody will be using a Netwinder (he's part of the original development
team.)  So no sleep states and therefore no wakeup.

There's various other ARM-based systems using the PC RTC, but none of
them have sleep or wakeup abilities afaik.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:
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