[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <514BC39F.6050209@gmail.com>
Date: Thu, 21 Mar 2013 21:36:15 -0500
From: Rob Herring <robherring2@...il.com>
To: Russell King - ARM Linux <linux@....linux.org.uk>
CC: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
devicetree-discuss@...ts.ozlabs.org, Arnd Bergmann <arnd@...db.de>,
linus.walleij@...aro.org, haojian.zhuang@...aro.org,
pawel.moll@....com, john.stultz@...aro.org, tglx@...utronix.de,
Rob Herring <rob.herring@...xeda.com>
Subject: Re: [PATCH 02/11] ARM: remove extra timer-sp control register clearing
On 03/21/2013 02:23 PM, Russell King - ARM Linux wrote:
> On Wed, Mar 20, 2013 at 05:54:02PM -0500, Rob Herring wrote:
>> From: Rob Herring <rob.herring@...xeda.com>
>>
>> The timer-sp initialization code clears the control register before
>> initializing the timers, so every platform doing this is redundant.
>>
>> For unused timers, we should not care what state they are in.
>
> NAK. We do care what state they're in. What if they have their interrupt
> enable bit set, and IRQ is shared with the clock event timer?
>
> No, this patch is just wrong.
Okay, I can have the timer init function clear the register in the case
that even when the timer is unused.
Rob
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists