[PATCH] ASoC: SOF - topology - do not change the link trigger order for pre-1.4 firmware

Pierre-Louis Bossart pierre-louis.bossart at linux.intel.com
Fri Feb 21 20:23:09 CET 2020


> Ok, it's really weird that we cannot determine the firmware/driver 
> combination which cause the DSP lock. I would propose to block the older 
> firmware load <1.4 (or 1.4.2 which has the correct firmware version!) 
> then (at least with a big warning or module option which is off by 
> default) for the newer kernels.

The driver has no information on firmware version until the FW_READY 
IPC, so we can't block the load. And with the firmware handling 
happening in a work queue, blocking will not result in a failed probe.
IIRC those timing issues are only for the HDaudio link DMA, I don't 
think we had issues with DMIC or SSP.
A warning urging people to update the firmware is probably easier to 
implement.


More information about the Alsa-devel mailing list