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Date: Thu, 22 Sep 2011 09:22:05 +0100
From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: Barry Song <21cnbao@gmail.com>
Cc: Jassi Brar <jassisinghbrar@gmail.com>, Piotr Ziecik <kosmo@semihalf.com>,
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        Yong Wang <yong.y.wang@intel.com>, Barry Song <Baohua.Song@csr.com>,
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Subject: Re: [PATCH] dmaengine: delete redundant chan_id and chancnt
	initialization in dma drivers
Message-ID: <20110922082205.GI17169@n2100.arm.linux.org.uk>
References: <1316166200-20595-1-git-send-email-Baohua.Song@csr.com> <CABb+yY2L=wfRoascoriAcnNMKkV7LbQEHCpp78+rCY=aM46x7A@mail.gmail.com> <CAGsJ_4zURv1_zJ0rwZawa8VSOw0kT9U4-cCCj2Q4-BhV1pdTHA@mail.gmail.com>
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On Thu, Sep 22, 2011 at 08:08:44AM +0800, Barry Song wrote:
> actually i don't like the way dmaengine core handles chan_id. in my
> opinion, every dmac only needs to tell dmaengine core the chan_base.
> then dmaengine core set the id in a global scale.

Think about where we're heading with DT - with the description of the
hardware setup.  We're no longer interested in a global number from
0 to N.  We're more interested in per-device numbering.