15 May
2020
15 May
'20
11:04 a.m.
Is this a bugfix needed for older kernels as well? When did this issue show up?
thanks,
greg k-h
It happens when DMA stop moving data from host to DSP/DAI for a long time (> half of buffer time). I know host driver should do something about it. But if not, the HWSYNC will keep increasing the hw_base and hw_ptr and confuses user space program.
Regards, Brent