linux-kernel - Re: [PATCH v3] i2c: rk3x: fix bug that cause measured high

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Message-ID: <20141208200415.GC13486@pengutronix.de>
Date:	Mon, 8 Dec 2014 21:04:15 +0100
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	Doug Anderson <dianders@...omium.org>
Cc:	Wolfram Sang <wsa@...-dreams.de>, Addy Ke <addy.ke@...k-chips.com>,
	Max Schwarz <max.schwarz@...ine.de>,
	Heiko Stübner <heiko@...ech.de>,
	Olof Johansson <olof@...om.net>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Tao Huang <huangtao@...k-chips.com>,
	Lin Huang <hl@...k-chips.com>,
	姚智情 <yzq@...k-chips.com>,
	Chris <zyw@...k-chips.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Kever Yang <kever.yang@...k-chips.com>,
	"open list:ARM/Rockchip SoC..." <linux-rockchip@...ts.infradead.org>,
	Jianqun Xu <xjq@...k-chips.com>,
	"linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>,
	caesar <caesar.wang@...k-chips.com>,
	Eddie Cai <cf@...k-chips.com>, Han Jiang <hj@...k-chips.com>,
	Shunqian Zheng <zhengsq@...k-chips.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v3] i2c: rk3x: fix bug that cause measured high_ns
 doesn't meet I2C spec

Hello,

On Mon, Dec 08, 2014 at 10:53:44AM -0800, Doug Anderson wrote:
> So just to summarize for Addy, I think you're being asked to spin one more time.
> 
> 1. Update the patch description as per Uwe.  Fix other typos pointed out by him.
> 
> 2. Since you're spinning anyway, adjust "i2c" capitalization to "I2C".
> 
> 3. If you agree with Uwe, rename spec_max_data_hold_ns to
> spec_data_valid_ns.  If not, we should debate in a followup patch.
> 
> 4. If you think spec_data_hold_buffer_ns could be better represented
> in another way (should this be i2c-sda-falling-time-ns"?), please do
> so.  If not, we should debate in a followup patch.
Sounds all reasonable. I'd not address 3 and 4 in this patch, but do
this in separate one. (That's what I intended from the beginning, just
failed to point that out explicitly.)

Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
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