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

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Date:	Sat, 16 Jan 2016 08:15:33 -0600
From:	Timur Tabi <timur@...i.org>
To:	Caleb Crome <caleb@...me.org>,
	Nicolin Chen <nicoleotsuka@...il.com>
Cc:	Mark Brown <broonie@...nel.org>, Xiubo Li <Xiubo.Lee@...il.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	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

Caleb Crome wrote:
> I see the 4 compatibles are:  fsl,mpc8610-ssi, fsl,imx51-ssi,
> fsl,imx35-ssi, and fsl,imx21-ssi.
>
> Shall I submit a patch that sets the value to 4 for for any/all of the
> above?  Should it be different based on whether fiq is enabled.  Maybe
> set it to 4 for whenever DMA is used, and to 13 whenever FIQ is used?

Do NOT change the watermark value for fsl,mpc8610-ssi from whatever it 
is today.  You would need to retest your code on an mpc8610 and p1022ds, 
and I don't think you have either of those boards.