linux-kernel - Re: request line field in the generic slave config structure

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Date:	Thu, 21 Mar 2013 15:40:59 +0530
From:	Vinod Koul <vinod.koul@...el.com>
To:	Arnd Bergmann <arnd.bergmann@...aro.org>
Cc:	"Shevchenko, Andriy" <andriy.shevchenko@...el.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Viresh Kumar <viresh.kumar@...aro.org>
Subject: Re: request line field in the generic slave config structure

On Mon, Mar 18, 2013 at 01:30:29PM +0000, Arnd Bergmann wrote:
> On Monday 18 March 2013, Shevchenko, Andriy wrote:
> > Hello!
> > 
> > It seems the one (as I think good) question was left unanswered:
> > http://www.spinics.net/lists/arm-kernel/msg186120.html
> > 
> > What is your opinions, comments?
> 
> I'm not sure I understand what the question was. Is this about
> whether we should remove the "slave_id" field in the slave
> configuration?
Ditto :)

The slave_id memeber in dma_slave_config should be used for this

> 
> Those sort of duplicate the request line information that comes
> from the platform in a data structure that should be filled by
> the device driver without platform specific knowledge.
> 
> I believe that is currently used by shmobile, and we won't be able
> to kill that before that platform has been converted to use
> dma_request_slave_channel.
> 
> 	Arnd
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