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@tabi.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.