linux-kernel - Re: [alsa-devel] [PATCH] ASoC: snd_dmaengine: add common api for pcm

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Message-ID: <20120628121816.GB21029@sirena.org.uk>
Date:	Thu, 28 Jun 2012 13:18:16 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Takashi Iwai <tiwai@...e.de>
Cc:	Lars-Peter Clausen <lars@...afoo.de>, alsa-devel@...a-project.org,
	swarren@...dia.com, linux-kernel@...r.kernel.org,
	Laxman Dewangan <ldewangan@...dia.com>, lrg@...com
Subject: Re: [alsa-devel] [PATCH] ASoC: snd_dmaengine: add common api for
 pcm_mmap

On Thu, Jun 28, 2012 at 02:15:38PM +0200, Takashi Iwai wrote:
> Lars-Peter Clausen wrote:

> > to the ALSA core. Now that there is a generic dma_mmap_writecombine it may
> > make sense to integrate this with snd_pcm_lib_default_mmap.

> Agreed.

> Also, it must be portable.  So far, only ARM has
> dma_mmap_writecombine(), thus the build on other arch would fail as
> is.

Oh, dear - this means we don't actually have a generic API at all.  Is
there any effort being made to make this generally available?
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