On Thu, Jan 14, 2016 at 6:45 PM, Nicolin Chen <nicoleotsuka@xxxxxxxxx> wrote: > 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? Yes, a value of 4 for my use case: i.MX6 @ 768000 words/second (48khz * 16 channels). Also, works at 8kHz, 16kHz 32 kHz. A setting of 8 does not work reliably at 48kHz but does work at 8, 16 and 32. -caleb -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
