linux-kernel - Re: [PATCH v3 2/2] i2c: New bus driver for the Qualcomm QUP I2C controller

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Date:	Tue, 25 Feb 2014 10:56:07 -0600
From:	Andy Gross <agross@...eaurora.org>
To:	Bjorn Andersson <bjorn@...o.se>
Cc:	Mark Rutland <mark.rutland@....com>,
	Bjorn Andersson <bjorn.andersson@...ymobile.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <Pawel.Moll@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Rob Landley <rob@...dley.net>,
	Wolfram Sang <wsa@...-dreams.de>,
	"grant.likely@...aro.org" <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-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>,
	"linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Stephen Boyd <sboyd@...eaurora.org>,
	"Ivan T. Ivanov" <iivanov@...sol.com>
Subject: Re: [PATCH v3 2/2] i2c: New bus driver for the Qualcomm QUP I2C
 controller

On Tue, Feb 25, 2014 at 08:07:13AM -0800, Bjorn Andersson wrote:

[snip]

> The v2 model will get BAM (DMAEngine) support soon, v1 uses an
> older DMA core. So there's a difference. I'm not aware what differences
> there are between 2.1.1 and 2.2.1.

Difference between 2.1.1 and 2.2.1:
 - high speed support, up to 3.4MHz
 - reconfiguration during run state
 - READ_AND_NACK, STOP tag support
 - some h/w bug fixes that don't involve software changes.

 
> Question is if next change will be called v3, as we then could skip the
> reset of the version.

Next version is 2.4.

-- 
sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation
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