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From: Heiko Stuebner <heiko@sntech.de>
To: Doug Anderson <dianders@chromium.org>
Cc: David Wu <david.wu@rock-chips.com>,
	Wolfram Sang <wsa@the-dreams.de>,
	Rob Herring <robh+dt@kernel.org>,
	Andy Shevchenko <andy.shevchenko@gmail.com>,
	Pawel Moll <pawel.moll@arm.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Ian Campbell <ijc+devicetree@hellion.org.uk>,
	Kumar Gala <galak@codeaurora.org>,
	Brian Norris <briannorris@google.com>,
	David Riley <davidriley@google.com>,
	Tao Huang <huangtao@rock-chips.com>,
	Lin Huang <hl@rock-chips.com>, Jianqun Xu <xjq@rock-chips.com>,
	Chris <zyw@rock-chips.com>, Eddie Cai <cf@rock-chips.com>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>,
	"open list:ARM/Rockchip SoC..."
	<linux-rockchip@lists.infradead.org>,
	"linux-i2c@vger.kernel.org" <linux-i2c@vger.kernel.org>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v8 8/8] i2c: rk3x: support fast-mode plus for rk3399
Date: Thu, 12 May 2016 10:30:25 +0200	[thread overview]
Message-ID: <6806722.VBDbziL6YI@phil> (raw)
In-Reply-To: <CAD=FV=VzQ8PRokgAaTV00L31mcXFEzBG8c1NB4+Rqyx75hwwDg@mail.gmail.com>

Am Mittwoch, 11. Mai 2016, 16:41:54 schrieb Doug Anderson:
> Heiko,
> 
> On Wed, May 11, 2016 at 2:09 PM, Heiko Stuebner <heiko@sntech.de> wrote:
> > Additionally, the i2c-noob in me would wish for a short sentence on
> > where
> > the timing values come from (measured, somewhere in the TRM I didn't
> > find or something completely different).
> 
> If you search for "UM10204" you'll find the first link is
> <http://www.nxp.com/documents/user_manual/UM10204.pdf>.  That appears
> to be the official standard.  At least that's what
> <http://www.i2c-bus.org/fast-mode-plus/> says (though they have an old
> link).

I did find that document yesterday, but was to blind and somehow only saw the 
separate table for highspeed-timings. On a closer look, I now also found the 
timing-table for the other modes [due to the bigger font-size used there? 
;-) ]

      reply	other threads:[~2016-05-12  8:30 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-10 19:24 [PATCH v8 0/8] add i2c driver supported for rk3399 David Wu
2016-05-10 19:24 ` [PATCH v8 1/8] i2c: rk3x: add documentation to fields in "struct rk3x_i2c" David Wu
2016-05-11 15:04   ` Heiko Stuebner
2016-05-10 19:24 ` [PATCH v8 2/8] i2c: rk3x: use struct "rk3x_i2c_calced_timings" David Wu
2016-05-10 19:24 ` [PATCH v8 3/8] i2c: rk3x: Remove redundant rk3x_i2c_clean_ipd() David Wu
2016-05-11 18:26   ` Heiko Stuebner
2016-05-12  1:11     ` David.Wu
2016-05-10 19:24 ` [PATCH v8 4/8] i2c: rk3x: Change SoC data to not use array David Wu
2016-05-10 19:29 ` [PATCH v8 5/8] i2c: rk3x: Move spec timing data to "static const" structs David Wu
     [not found] ` <1462908252-27016-1-git-send-email-david.wu-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2016-05-10 19:30   ` [PATCH v8 6/8] dt-bindings: i2c: rk3x: add support for rk3399 David Wu
2016-05-11 16:35     ` Doug Anderson
2016-05-12  1:14       ` David.Wu
2016-05-11 18:20     ` Heiko Stuebner
2016-05-10 19:31 ` [PATCH v8 7/8] i2c: rk3x: add i2c support for rk3399 soc David Wu
2016-05-11 11:43   ` Caesar Wang
2016-05-11 17:37   ` Doug Anderson
2016-05-12  1:08     ` David.Wu
2016-05-12 15:07       ` David.Wu
     [not found]         ` <57349C36.4030401-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2016-05-12 21:09           ` Doug Anderson
2016-05-10 19:33 ` [PATCH v8 8/8] i2c: rk3x: support fast-mode plus for rk3399 David Wu
2016-05-11 11:44   ` Caesar Wang
2016-05-11 21:09   ` Heiko Stuebner
2016-05-11 23:41     ` Doug Anderson
2016-05-12  8:30       ` Heiko Stuebner [this message]

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