linux-kernel - Re: [PATCH] ASoC: atmel-pcm-dma: increase buffer_bytes

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Message-ID: <20150402081318.GF20669@piout.net>
Date:	Thu, 2 Apr 2015 10:13:18 +0200
From:	Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To:	Mark Brown <broonie@...nel.org>
Cc:	Bo Shen <voice.shen@...el.com>,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	alsa-devel@...a-project.org
Subject: Re: [PATCH] ASoC: atmel-pcm-dma: increase buffer_bytes_max

On 01/04/2015 at 21:33:42 +0100, Mark Brown wrote :
> On Mon, Mar 30, 2015 at 09:40:37PM +0200, Alexandre Belloni wrote:
> > atmel-pcm-dma is not limited to a buffer size of 64kB like atmel-pcm-pdc.
> > Increase buffer_bytes_max to 512kB to allow for higher bit rates (i.e. 32bps at
> > 192kHz) to work correctly. By default, keep the prealloc at 64kB.
> 
> Applied, but please look into Lars' suggestion - we should be able to
> just figure everything out from the DMA controller.

This is definitively on the TODO list.

-- 
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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