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From: Marek Vasut <marex@denx.de>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: linux-input@vger.kernel.org,
	Vipul Kumar Samar <vipulkumar.samar@st.com>,
	Viresh Kumar <viresh.kumar@linaro.org>
Subject: Re: [PATCH] Input: smtpe-ts: Use msecs_to_jiffies() instead of HZ
Date: Fri, 8 May 2015 03:51:51 +0200	[thread overview]
Message-ID: <201505080351.51784.marex@denx.de> (raw)
In-Reply-To: <20150506235928.GG5580@dtor-ws>

On Thursday, May 07, 2015 at 01:59:28 AM, Dmitry Torokhov wrote:
[...]

Hi!

> > Maybe I'm fixing two bugs here ? The problem I really had is that with
> > kernel HZ set to 250 and the original code, the work was scheduled and
> > executed too quickly, so my touchscreen was bouncing between pendown and
> > penup events back and forth, without doing any usaful work.
> > 
> > I tried changing the code to HZ/5 instead of HZ/50 and that fixes my
> > issue as well.
> > 
> > My impression is that using msec_to_jiffies() is clearer especially
> > if the code is to represent a constant delay.
> 
> It is indeed clearer and I would not mind such conversion, we just need
> to adjust the comment why we do that.
> 
> > But maybe I should then
> > document why I changed the duration (because the original one was too
> > short) ?
> 
> Please make a separate patch for that with separate justification.
> 
> Thanks!

Roger, will do, thank you!

Best regards,
Marek Vasut

      reply	other threads:[~2015-05-08  1:54 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-05 23:46 [PATCH] Input: smtpe-ts: Use msecs_to_jiffies() instead of HZ Marek Vasut
2015-05-06  0:01 ` Dmitry Torokhov
2015-05-06  0:36   ` Marek Vasut
2015-05-06 23:59     ` Dmitry Torokhov
2015-05-08  1:51       ` Marek Vasut [this message]

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