[alsa-devel] mcasp: stream has more channels (2) than are enabled in mcasp (0)

Rick Mann rmann at latencyzero.com
Mon Apr 4 10:59:45 CEST 2016


I've got a Beaglebone Green with a custom cape (CODEC and amp and some other stuff).

Kernel 4.4.6-bone-rt-r6. When I load the overlay that should set up my CODEC in the device tree, I get the following in the log.

[  367.172337] davinci-mcasp 48038000.mcasp: stream has more channels (2) than are enabled in mcasp (0)
[  367.172374] davinci-mcasp 48038000.mcasp: ASoC: can't set 48038000.mcasp hw params: -22

You can see a little more log context, along with the DTS, here:

	http://pastebin.com/UPB1xjPF

Can anyone tell me what this means? Thanks!

-- 
Rick Mann
rmann at latencyzero.com




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