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

From: Caleb Crome
Date: Sun Jan 17 2016 - 18:35:23 EST


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@xxxxxxxx> 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.