linux-kernel - Re: [PATCH] dmaengine: delete redundant chan_id and chancnt initialization in dma drivers

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Message-ID: <CABb+yY3mCHwWx-8gQG75107eWQBT1kPDu59vi9vHU+OQFXq_kg@mail.gmail.com>
Date:	Thu, 22 Sep 2011 11:56:46 +0530
From:	Jassi Brar <jassisinghbrar@...il.com>
To:	Barry Song <21cnbao@...il.com>
Cc:	Barry Song <Baohua.Song@....com>,
	Piotr Ziecik <kosmo@...ihalf.com>,
	Vinod Koul <vinod.koul@...el.com>,
	Pelagicore AB <info@...agicore.com>,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	linux-kernel@...r.kernel.org, Yong Wang <yong.y.wang@...el.com>,
	dan.j.williams@...el.com, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] dmaengine: delete redundant chan_id and chancnt
 initialization in dma drivers

On Thu, Sep 22, 2011 at 11:11 AM, Jassi Brar <jassisinghbrar@...il.com> wrote:
>
>> client drivers can request a specific chan_id just like it can request a gpio.
> No dear. That's not gonna fly if we are to have common client drivers
> across SoCs.
>
Btw, I meant you can't simply have clients specify a channel number and
get the channel in a portable manner. Clients need to specify the capabilities
they need of the channel.
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