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From: Wolfram Sang <wsa@the-dreams.de>
To: Doug Anderson <dianders@chromium.org>
Cc: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
	"Addy Ke" <addy.ke@rock-chips.com>,
	"Max Schwarz" <max.schwarz@online.de>,
	"Heiko Stübner" <heiko@sntech.de>,
	"Olof Johansson" <olof@lixom.net>,
	"Rob Herring" <robh+dt@kernel.org>,
	"Pawel Moll" <pawel.moll@arm.com>,
	"Ian Campbell" <ijc+devicetree@hellion.org.uk>,
	"Kumar Gala" <galak@codeaurora.org>,
	"Tao Huang" <huangtao@rock-chips.com>,
	"Lin Huang" <hl@rock-chips.com>, 姚智情 <yzq@rock-chips.com>,
	Chris <zyw@rock-chips.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"Kever Yang" <kever.yang@rock-chips.com>,
	"open list:ARM/Rockchip SoC..."
	<linux-rockchip@lists.infradead.org>,
	"Jianqun Xu" <xjq@rock-chips.com>,
	"linux-i2c@vger.kernel.org" <linux-i2c@vger.kernel.org>,
	caesar <caesar.wang@rock-chips.com>,
	"Eddie Cai" <cf@rock-chips.com>, "Han Jiang" <hj@rock-chips.com>,
	"Shunqian Zheng" <zhengsq@rock-chips.com>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v3] i2c: rk3x: fix bug that cause measured high_ns doesn't meet I2C spec
Date: Mon, 8 Dec 2014 18:34:32 +0100	[thread overview]
Message-ID: <20141208173432.GA5732@katana> (raw)
In-Reply-To: <CAD=FV=V=PDPiDhDmd+j8ePsF43EvuFP-LxKgMKo7ZRBzSMyOJA@mail.gmail.com>

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> > There are different capitalisation of i2c in the patch and the commit log. I
> > don't know what Wolfram prefers here, but using the same spelling
> > everywhere would be nice.
> 
> Can you please point out?  IIRC you should always capitalize I2C in
> prose (descriptions, comments, documentation, etc).  However when used
> in places which specific capitalization standards it should be
> lowercase.  That means file names, directory names, device tree
> property names, etc should be lower case.

This is what I prefer, too. However, I am not too strict about it.
I mean, both are readable.

> >> +     /* Read rise and fall ns; if not there use the default max from spec */
> >> +     if (of_property_read_u32(pdev->dev.of_node, "i2c-scl-rising-time-ns",
> >> +                              &i2c->rise_ns)) {
> >> +             if (i2c->scl_frequency <= 100000)
> >> +                     i2c->rise_ns = 1000;
> >> +             else
> >> +                     i2c->rise_ns = 300;
> >> +     }
> >> +     if (of_property_read_u32(pdev->dev.of_node, "i2c-scl-falling-time-ns",
> >> +                              &i2c->fall_ns))
> >> +             i2c->fall_ns = 300;
> >> +
> > I don't know if other drivers do the same (I assume they should). If so,
> > moving this logic into the core would be nice. I guess this can still be
> > done later.

Let's leave that for later. If we do it, we should start with bus speed
setting first, probably.


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  reply	other threads:[~2014-12-08 17:34 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-06  8:11 [PATCH] " Addy Ke
2014-12-02 23:02 ` Doug Anderson
2014-12-03  2:37 ` [PATCH v2] " Addy Ke
2014-12-03  5:13   ` Doug Anderson
2014-12-03 11:15   ` Wolfram Sang
2014-12-03 17:53     ` Doug Anderson
2014-12-04 18:40       ` Wolfram Sang
2014-12-04 18:43         ` Doug Anderson
2014-12-04 19:03           ` Wolfram Sang
2014-12-05 19:31             ` Doug Anderson
2014-12-08  2:59 ` [PATCH v3] " Addy Ke
2014-12-08  3:06   ` addy ke
2014-12-08  8:52   ` Uwe Kleine-König
2014-12-08 17:13     ` Doug Anderson
2014-12-08 17:34       ` Wolfram Sang [this message]
2014-12-08 18:53         ` Doug Anderson
2014-12-08 20:04           ` Uwe Kleine-König
2014-12-11  6:00   ` [PATCH v4] i2c: rk3x: fix bug that cause measured high_ns doesn't meet I2C specification Addy Ke
2014-12-11  7:47     ` Uwe Kleine-König
2014-12-11 11:02     ` [PATCH v5] " Addy Ke
2014-12-11 19:22       ` Doug Anderson
2015-01-13 11:42       ` Wolfram Sang

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