linux-kernel - Re: [PATCH 1/4] [SCSI] ufshcd: UFS Host controller driver

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Date:	Sat, 11 Feb 2012 19:52:08 +0000
From:	Arnd Bergmann <arnd@...db.de>
To:	Santosh Y <santoshsy@...il.com>
Cc:	Girish K S <girish.shivananjappa@...aro.org>,
	Vinayak Holikatti <vinholikatti@...il.com>,
	James.Bottomley@...senpartnership.com, linux-scsi@...r.kernel.org,
	linux-kernel@...r.kernel.org, patches@...aro.org,
	linux-samsung-soc@...r.kernel.org, saugata.das@...aro.org,
	venkat@...aro.org, vishak.g@...sung.com, k.rajesh@...sung.com,
	yejin.moon@...sung.com, Sree kumar <sreekumar.c@...sung.com>
Subject: Re: [PATCH 1/4] [SCSI] ufshcd: UFS Host controller driver

On Friday 10 February 2012, Santosh Y wrote:
> > UFS host controller specification Section 7.2.1, step 11,  mentions
> > that the aggregation control register should be set if run/stop bit is
> > not enabled.
> > But In this case the run/ stop bit is set above before configuring the
> > aggregation register. Please check for the same in other places from
> > where it is called.
> >
> 
> The spec mentions, (Section 7.2.1, step 11)
> "UTRIACR initialization may be executed at any time when the Run/Stop
> register (UTRLRSR)
> is not enabled or when no requests are outstanding."
> 
> At this point in the code, during execution, there will not be any
> outstanding requests.

One meta-comment: When you reply on a long email like this, please
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your contribution in the middle of a long quote.

	Arnd
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