On Thu, Aug 13, 2009 at 05:37:09PM +0800, Barry Song wrote: > If so, all codec drivers need to save setting then restore them when > resume. The physical shutdown depends on boards great. If we get an > individual programmable PMU/LDO to control the voltage input to this > chip, I can shutdown power-input to codec physically and save the > registers when suspend, then restore them when resume. If no this > unit, should every codec driver handle this case? Yes, every CODEC driver that supports suspend and resume needs to handle this. Since the CODEC drivers generally use a register cache it's normally just a case of writing the values in the cache back to the device at the start of resume. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
