Hi Mark Brown Thank you for your valuable advice to let me understand the problem. I will fix this issue in the next patch Best regards Weidong Wang On Mon, Oct 24, 2022 at 10:41:03AM +0800, wangweidong.a@xxxxxxxxxx wrote: > > Then it's not a mute function, the goal of the mute function is to > > run > before all the power management code to minimise glitches during power > management. Just implement the power management via the standard ASoC > power > > > management APIs. > The essence of calling mute is not switch dsp, but switch PA. We think > that PA has only two states. When no audio stream enters, turn off the > PA and turn off the PA's dsp. When the audio stream enters, the PA is > turned on, and the dsp is turned on at the same time > That's not what the mute function is for, the interface is specifically for muting the stream while power management changes are > going on. What you're describing is power management so should be controlled via DAPM. > If your device doesn't have any support for a separate mute function then it should just not implement anything for that in the > driver.
