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Message-ID: <u2q63386a3d1005011648k5fa29ae9y9e03d3c94594902b@mail.gmail.com> Date: Sun, 2 May 2010 01:48:34 +0200 From: Linus Walleij <linus.ml.walleij@...il.com> To: Dan Williams <dan.j.williams@...el.com> Cc: Russell King - ARM Linux <linux@....linux.org.uk>, Linus WALLEIJ <linus.walleij@...ricsson.com>, "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>, Grant Likely <grant.likely@...retlab.ca>, "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>, "linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>, STEricsson_nomadik_linux <STEricsson_nomadik_linux@...t.st.com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: [PATCH 00/11] ARM: PrimeCell DMA Interface v5 2010/5/2 Dan Williams <dan.j.williams@...el.com>: > On Sat, May 1, 2010 at 4:04 PM, Linus Walleij >> When the driver issues a request to perform a DMA transfer, it will pull >> out a physical channel and use that, then return it. If there is too >> much combat about the physical channels, you configure out DMA >> for the least wanted PrimeCells. >> > > Could you simulate this by publishing more struct dma_chans than are > physically present, and then handle the muxing internal to the driver? > Or am I misunderstanding the usage model? Yes exactly that way. What I had in mind atleast. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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