linux-kernel - Re: [PATCH RFC 1/1] ASoC: fsl_ssi: Make fifo watermark and maxburst settings device tree options

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Message-ID: <20160115024534.GB29132@Asurada-Nvidia>
Date:	Thu, 14 Jan 2016 18:45:35 -0800
From:	Nicolin Chen <nicoleotsuka@...il.com>
To:	Caleb Crome <caleb@...me.org>
Cc:	Timur Tabi <timur@...i.org>, Xiubo Li <Xiubo.Lee@...il.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	"alsa-devel@...a-project.org" <alsa-devel@...a-project.org>
Subject: Re: [PATCH RFC 1/1] ASoC: fsl_ssi: Make fifo watermark and maxburst
 settings device tree options

On Thu, Jan 14, 2016 at 01:26:24PM -0800, Caleb Crome wrote:

> As for optimal settings, I finally came to a setting of 4 for depth &
> maxburst, which will result in more DMA requests, but it's the only
> way that works at 48kHz for me.  The default settings is 13 (15 - 2)
> for the ones of the 15 item fifo, which is a pretty dramatic
> difference.  I just don't know if other chips will behave badly in
> that case.

What's your final configuration for TFWM0 bits, 4?