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From: Wolfram Sang <wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>
To: Maxime Coquelin <maxime.coquelin-qxv4g6HH51o@public.gmane.org>
Cc: linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Srinivas Kandagatla
	<srinivas.kandagatla-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	Patrice Chotard <patrice.chotard-qxv4g6HH51o@public.gmane.org>,
	kernel-F5mvAk5X5gdBDgjK7y7TUQ@public.gmane.org
Subject: Re: [PATCH] drivers: i2c: i2c-st: Update i2c timings
Date: Tue, 3 Jun 2014 09:59:22 +0200	[thread overview]
Message-ID: <20140603075922.GB2653@katana> (raw)
In-Reply-To: <538D7A1C.5040409-qxv4g6HH51o@public.gmane.org>

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> >Can you give names here? Would be interesting to know since a few
> >drivers implement the minimum timings.
> 
> I don't have the name actually.
> The request to implement this change came from hw guys.

Can you ask? It feels better to have changes based on facts.

> >>This patch adds a 10% margin on all the timings.
> >
> >Is there a safety margin or do the devices start to work exactly at 10%?
> 
> 10% is a safety margin, I don't know what is the limit.

Which also came from the HW guys? Please ask for details why 10%, too.

Thanks,

   Wolfram


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  parent reply	other threads:[~2014-06-03  7:59 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-16 15:32 [PATCH] drivers: i2c: i2c-st: Update i2c timings Maxime COQUELIN
2014-06-02 16:31 ` Wolfram Sang
2014-06-03  7:32   ` Maxime Coquelin
     [not found]     ` <538D7A1C.5040409-qxv4g6HH51o@public.gmane.org>
2014-06-03  7:59       ` Wolfram Sang [this message]
2014-07-21 11:05         ` Maxime Coquelin
     [not found]           ` <53CCF3EC.6030904-qxv4g6HH51o@public.gmane.org>
2014-07-21 14:03             ` Wolfram Sang

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