Re: [PATCH] ASoC: tlv320adcx140: Add controls for PDM clk and edge
From: Mark Brown
Date: Wed May 13 2020 - 13:32:35 EST
On Wed, May 13, 2020 at 12:16:03PM -0500, Dan Murphy wrote:
> On 5/13/20 10:32 AM, Mark Brown wrote:
> > Are these (especially the clock and polarity) things that are going to
> > vary at runtime? I'd have expected these to come from the hardware
> > rather than being something that could usefully change.
> Some microphone support low power modes that use a slower clock.
> Polarity will probably not change at run-time, but clock speed can change to
> move mics from low power/low-resolution to higher power/high-resolution
> mode.
> So polarity can be made hardware specific but clocks should be configurable.
> I can break these out into separate patches if you want.
Please, and make the bits that can't usefully vary DT properties.
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