Messages in this thread | | | From | Lee Steve <> | Date | Tue, 6 Sep 2022 14:17:53 +0900 | Subject | Re: [PATCH] ASoC: max98390: Remove unnecessary amp on/off conrtol |
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On Thu, Sep 1, 2022 at 7:54 PM Mark Brown <broonie@kernel.org> wrote: > > On Thu, Sep 01, 2022 at 02:57:19PM +0900, Lee Steve wrote: > > On Thu, Sep 1, 2022 at 1:36 AM Mark Brown <broonie@kernel.org> wrote: > > > > I can't see anything which ensures that this is the case? Should there > > > be a check which returns an error if the output is not enabled, or > > > should the function check the current state and preserve it at the end? > > > I can see that this would fix problems with it being disabled when > > > callibrating. > > > As your comment, this can fix amp being disabled when calibrating. > > And this also fix the case that music play right after calibration. > > Actually, calibration process should start mute playback before > > trigger this function. > > AMP disable/enable control in calibration function can break sync with > > userspace enable/disable control. > > Right, so that sounds like there should be something which checks the > current state and doesn't start callibration unless the device is in a > sensible state.
I will send v2 patch adding check before start calibration. Thanks.
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