On Tue, Sep 04, 2018 at 08:55:06AM -0500, Andrew F. Davis wrote: > On 09/03/2018 06:26 AM, Mark Brown wrote: > > If we really want to pay attention to something setting this up we'd > > need to completely remove the widget - what the code is doing at the > > minute is setting the voltage that the bias will go to when enabled, > > there's still a widget for turning it on and off. There's some chance > > that this will break existing boards. > Turning on bias is controlled separately, automatically in user-space in > many cases, not based on the board. The DT needs to have a way to state > that 0v is the needed bias on this board, without this you can not set > 0v bias and 2v is chosen by default (which is IMHO should be 0v but that > would change existing behavior so I won't touch that). Surely turning on MICBIAS at 0V is equivalent to leaving the bias off?
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