From: Magnus Damm <magnus.damm@gmail.com>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: linux-input@vger.kernel.org, lethal@linux-sh.org,
simon@horms.net, linux-sh@vger.kernel.org
Subject: Re: [PATCH] input: sh_keysc: Switch to threaded IRQ handler
Date: Thu, 28 Apr 2011 06:46:16 +0000 [thread overview]
Message-ID: <BANLkTi=t0p-m-nNssH8dF6K00aX+6mt60w@mail.gmail.com> (raw)
In-Reply-To: <20110428062952.GF31734@core.coreip.homeip.net>
On Thu, Apr 28, 2011 at 3:29 PM, Dmitry Torokhov
<dmitry.torokhov@gmail.com> wrote:
> On Thu, Apr 21, 2011 at 10:38:24PM +0900, Magnus Damm wrote:
>> From: Magnus Damm <damm@opensource.se>
>>
>> Update the KEYSC driver to make use of threaded IRQs
>> with IRQF_ONESHOT.
>>
>
> Explanation of why this is needed is missing.
>
> Thanks.
Sorry for not giving you a more complete commit message.
The reason for this change is to improve interrupt latency. This
driver is using udelay() in the ISR to make sure the hardware has
stabilized. Without using interrupt threads this delay may affect the
latency of the rest of the system.
Would you like me to resend a V2?
Thanks,
/ magnus
next prev parent reply other threads:[~2011-04-28 6:46 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-21 13:38 [PATCH] input: sh_keysc: Switch to threaded IRQ handler Magnus Damm
2011-04-28 6:29 ` Dmitry Torokhov
2011-04-28 6:46 ` Magnus Damm [this message]
2011-04-28 7:03 ` Dmitry Torokhov
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