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From: =?iso-8859-1?Q?M=E5ns_Rullg=E5rd?= <mans@mansr.com>
To: Vinod Koul <vinod.koul@intel.com>
Cc: Mason <slash.tmp@free.fr>, Russell King <linux@arm.linux.org.uk>,
        dmaengine@vger.kernel.org, Linus Walleij <linus.walleij@linaro.org>,
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Subject: Re: Tearing down DMA transfer setup after DMA client has finished
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Date: Thu, 08 Dec 2016 16:48:18 +0000
In-Reply-To: <20161208163755.GH6408@localhost> (Vinod Koul's message of "Thu,
        8 Dec 2016 22:07:55 +0530")
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Vinod Koul <vinod.koul@intel.com> writes:

> To make it efficient, disregarding your Sbox HW issue, the solution is
> virtual channels. You can delink physical channels and virtual channels. If
> one has SW controlled MUX then a channel can service any client. For few
> controllers request lines are hard wired so they cant use any channel. But
> if you dont have this restriction then driver can queue up many transactions
> from different controllers.

Have you been paying attention at all?  This exactly what the driver
ALREADY DOES.

-- 
Måns Rullgård