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From: Geoff Levand <geoffrey.levand@am.sony.com>
To: Alessandro Zummo <alessandro.zummo@towertech.it>
Cc: rtc-linux@googlegroups.com,
	linuxppc-dev list <linuxppc-dev@ozlabs.org>,
	rz@linux-m68k.org, LKML Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [rtc-linux] state of GEN_RTC vs rtc subsystem
Date: Fri, 30 May 2008 15:45:40 -0700	[thread overview]
Message-ID: <48408394.8000406@am.sony.com> (raw)
In-Reply-To: <20080220180325.46446675@i1501.lan.towertech.it>

Alessandro Zummo wrote:
> On Wed, 20 Feb 2008 10:11:23 -0600
> Kumar Gala <galak@kernel.crashing.org> wrote:
> 
>> 
>> Is the functionality provided by drivers/char/gen_rtc.c completely  
>> handled by the rtc subsystem in drivers/rtc?
>> 
>> I ask for two reasons:
>> 1. should we make it mutually exclusive in Kconfig
>> 2. I've enabled both and get (we'll my defconfig did):
> 
>  They shouldn't be enabled at once. I think a patch 
>  for Kconfig has been recently submitted to give a warning
>  in such a case.
> 
>  rtc-cmos should be able to handle the vast majority of x86
>  rtcs out there. 

gen_rtc was hooked up to the powerpc platform
ppc_md.set_rtc_time and ppc_md.get_rtc_time via the arch
specific get_rtc_time() and  set_rtc_time() routines.

>From what I can tell, those generic rtc routines the powerpc
arch provides are not properly hooked into the new rtc subsystem.
This causes problems for multi-platform builds where some platforms
must use gen_rtc, and some must the new rtc subsytem.

-Geoff



  parent reply	other threads:[~2008-05-30 22:45 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-20 16:11 Kumar Gala
2008-02-20 17:03 ` [rtc-linux] " Alessandro Zummo
2008-02-20 20:37   ` woodys
2008-02-21  0:14     ` [rtc-linux] " Alessandro Zummo
2008-02-22  7:47   ` [rtc-linux] " J.A. Magallón
2008-05-30 22:45   ` Geoff Levand [this message]
2008-06-02 22:27     ` Geoff Levand
2008-06-07  6:38       ` Rogério Brito
2008-06-07  9:46       ` [rtc-linux] " David Woodhouse
2008-02-21  9:26 ` Richard Zidlicky

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