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Message-ID: <CAG5mAdzN0j0fEsDcZMPUTPQtf9vSyyHYUE4HVisu_MxVBVAxOg@mail.gmail.com>
Date: Sun, 17 Jan 2016 15:34:59 -0800
From: Caleb Crome <caleb@...me.org>
To: Timur Tabi <timur@...i.org>
Cc: Nicolin Chen <nicoleotsuka@...il.com>,
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
Okay, I'll submit a patch that does the following:
fsl,mpc8610: using DMA=fifo_depth-2 (unchanged from current), using
FIQ=fifo_depth (unchanged from current).
all others that are marked with 'imx': watermark&maxburst = 4 for DMA
(new setting). watermark = fifo_depth for FIQ (unchanged from
previous).
-Caleb
On Sat, Jan 16, 2016 at 6:15 AM, Timur Tabi <timur@...i.org> wrote:
> 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.
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