[alsa-devel] [PATCH v2] ASoC: rt5677: make volume TLV closer to reality

[Mark Brown]

On Thu, Oct 09, 2014 at 03:11:27PM -0700, Dylan Reid wrote:
> The volume blocks have an step of 0.375dB, but TLV uses 0.01dB for
> units.  Switch to use TLV_DB_MINMAX as this allows the minimum to be
> off by only 0.005dB.  This is an improvement from the ~500dB is was
> misreported by before.

The usual thing to do with these is just to halve the resolution of the
control by ignoring the low bit so that you get exact values, though for
this device that does result in a relatively large step (step sizes like
0.125dB are more common).  I dunno, doesn't make much difference either
way from my point of view.
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