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From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: alsa-devel@alsa-project.org,
	jassi brar <jassisinghbrar@gmail.com>,
	ben-linux@fluff.org, Jassi Brar <jassi.brar@samsung.com>
Subject: Re: [PATCH 1/7] S3C AUDIO: Rename s3c24xx_pcm prefix to s3c_dma
Date: Mon, 9 Nov 2009 12:05:18 +0000	[thread overview]
Message-ID: <20091109120517.GA22520@rakim.wolfsonmicro.main> (raw)
In-Reply-To: <4AF7B47C.40508@samsung.com>

On Mon, Nov 09, 2009 at 03:19:40PM +0900, Joonyoung Shim wrote:

> I don't know why Ben doesn't use the DMA subsystem at s3c64xx
> CPU(PL080). I just think because the PL080 chip of s3c64xx has some
> customized parts or for the DMA interface compatibility of s3c24xx.

I suspect it's the latter; using the DMA API would mean updating all the
existing DMA drivers.

For audio use we'd probably also want to extend the DMA API to support
circular operation which I don't think it did last time I looked at it,
but that was when it was very shiny and new.  Ideally we'd be able to
have an ASoC DMA engine API client which would work over multiple
platforms which would be very nice.

  reply	other threads:[~2009-11-09 12:05 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-11-05  1:34 [PATCH 1/7] S3C AUDIO: Rename s3c24xx_pcm prefix to s3c_dma Jassi Brar
2009-11-05  3:14 ` Joonyoung Shim
2009-11-05  4:16   ` jassi brar
2009-11-05  5:03     ` Joonyoung Shim
2009-11-06 16:23       ` Mark Brown
2009-11-07  3:46         ` jassi brar
2009-11-09  5:14           ` Joonyoung Shim
2009-11-09  5:31             ` jassi brar
2009-11-09  6:19               ` Joonyoung Shim
2009-11-09 12:05                 ` Mark Brown [this message]
2009-11-11  4:44 Jassi Brar

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