linux-kernel - Re: [PATCH v5 1/4] i2c: busses: i2c-st: Add ST I2C controller

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Message-ID: <20131017141957.GE14104@ns203013.ovh.net>
Date:	Thu, 17 Oct 2013 16:19:57 +0200
From:	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
To:	srinivas kandagatla <srinivas.kandagatla@...com>
Cc:	Maxime COQUELIN <maxime.coquelin@...com>,
	Wolfram Sang <wsa@...-dreams.de>,
	Rob Herring <rob.herring@...xeda.com>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Stephen Warren <swarren@...dotorg.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Rob Landley <rob@...dley.net>,
	Russell King <linux@....linux.org.uk>,
	Grant Likely <grant.likely@...aro.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>,
	Stuart MENEFY <stuart.menefy@...com>,
	Lee Jones <lee.jones@...aro.org>,
	Stephen GALLIMORE <stephen.gallimore@...com>,
	Gabriel FERNANDEZ <gabriel.fernandez@...com>
Subject: Re: [PATCH v5 1/4] i2c: busses: i2c-st: Add ST I2C controller

On 10:33 Thu 17 Oct     , srinivas kandagatla wrote:
> On 17/10/13 08:27, Maxime COQUELIN wrote:
> > ...
> >>> >> +
> >>> >> +static struct of_device_id st_i2c_match[] = {
> >>> >> +     { .compatible = "st,comms-ssc-i2c", },
> >> > the rules is to put the first soc that use the ip in the compatible
> >> > as st,sti7100-scc-i2c
> > Ok. There are no plans to upstream the SH4 platforms, it will only 
> > remains in stlinux.com.
> > Maybe I can set the first ARM platform (STiH415)?
> > That would give st,stih415-ssc-i2c.
> NAK, for st,stih415-ssc-i2c naming.
> 
> IMO, this makes sense when the same IP integration done on different SOC
> changes slightly/very differently.
> 
> But in this case the "comms" IP remains unchanged across all the SOCs.
> 
> I would still prefer "st,comms-ssc-i2c", allowing a single device driver
> to match against several SoCs. ST "comms" IP it is integrated across all
> the STi series of SoCs, so we don't want to add new entry in compatible
> for every new SOC.

you never need this you always the first SoC that's all

see other bindings on at91 as example sorry NACK

Best Regards,
J.
> 
> 
> Thanks,
> srini
> 
> > 
> > Thanks for the review,
> > Maxime
> > 
> >> >
> 
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