linux-kernel - Re: [PATCH V2 0/6] arm_smp_twd: mpcore

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Message-ID: <4E1479EB.2060908@mvista.com>
Date:	Wed, 06 Jul 2011 19:06:19 +0400
From:	Vitaly Kuzmichev <vkuzmichev@...sta.com>
To:	Marc Zyngier <marc.zyngier@....com>
CC:	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-watchdog@...r.kernel.org" <linux-watchdog@...r.kernel.org>,
	Russell King <linux@....linux.org.uk>,
	Wim Van Sebroeck <wim@...ana.be>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Arnd Bergmann <arnd@...db.de>,
	John Stultz <johnstul@...ibm.com>,
	Nicolas Pitre <nico@...xnic.net>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH V2 0/6] arm_smp_twd: mpcore_wdt: Fix MPCORE watchdog setup

Hi Marc,

On 07/06/2011 04:39 PM, Marc Zyngier wrote:
> On 06/07/11 13:27, Vitaly Kuzmichev wrote:
>> Hi Marc,
>>
>> On 07/06/2011 02:05 PM, Marc Zyngier wrote:
>> [...]
>>>> The series of patches is based on arm-platforms.git/local_timers_as_devices
>>>> branch since it looks like that it is going to be merged into the mainline.
>>>
>>> Be careful here. This branch is a work in progress, likely to change
>>> very quickly, contains code that has not been posted to the ML yet, and
>>> will probably eat your pet for breakfast. As far as mainline merging is
>>> concerned, there is still a long way to go (see the GIC consolidation
>>> patches, on which the local_timers_as_devices branch relies).
>>
>> I understand.
>> When do you plan to finish this job?
>> Would not it be better to prepare two sets of patches: first one for
>> linux-2.6/master with exported function, second for arm-platforms.git
>> with removing exported function and replacing use of it by
>> clk_get_rate(smp_twd) call?
>> Is there a chance in this case, that my patches will be merged much
>> earlier than yours?
> 
> Your guess is as good as mine. It all depends on people's bandwidth to
> review long series of patches (the particular branch you used is a merge
> of 3 different series), so I'd expect a smaller, less intrusive series
> to make it quicker than my monster patch sets... ;-)

Ok, but then we are coming back to the V1 series containing the
following patches:
  ARM: smp_twd: mpcore_wdt: Fix watchdog counter loading
  ARM: smp_twd: Fix typo in twd_timer_rate printout
  ARM: mpcore_wdt: Fix WDIOC_SETOPTIONS handling
  ARM: mpcore_wdt: Fix timer mode setup

The patches V2 5/6 (Add cpufreq notifier to reload counter) and V2 6/6
(Move declarations in a separate header) are useless without smp_twd
clock and can be threw out.

I will rebase and update V1 series and repost them soon.

Thanks,
Vitaly.
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