On Tue, Nov 17, 2020 at 06:17:36PM +0000, Viorel Suman wrote: > > On Tue, Nov 17, 2020 at 12:20:36AM +0200, Viorel Suman (OSS) wrote:
> > One thing I'm not clear on is if there's some way to ensure that we don't > > have > > different instances of the device resetting each other without them > > noticing? > > Shouldn't be an issue in practice for the use here. > The way to ensure that we don't have different instances of the device > resetting each > other is to rely on the way the "shared" reset is handled by reset API: > ========== > + ak4458->reset = devm_reset_control_get_optional_shared(ak4458->dev, > NULL); > + if (IS_ERR(ak4458->reset)) > + return PTR_ERR(ak4458->reset); > ========== Flip side of that then, how do we know when a reset has actually happened?
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