[alsa-devel] [PATCH 1/2] ASoC: da7218: Add bindings documentation for DA7218 audio codec

[Mark Brown]

On Thu, Nov 05, 2015 at 10:43:15AM +0000, Adam Thomson wrote:

> +- dlg,ldo-lvl : Required internal LDO voltage (mV) level
> +	[<1050>, <1100>, <1200>, <1400>]

Why would this ever be anything other than the minimum voltage, and
might we not want to vary it at runtime?

> +- dlg,biquad-cfg : List of data & address pairs to configure BiQuad filters
> +	[ < {data1} {addr1} {data2} {addr2} ... >; ]
> +- dlg,st-biquad-cfg : List of data & address pairs to configure Sidetone
> +		      BiQuad filters
> +	[ < {data1} {addr1} {data2} {addr2} ... >; ]

These look like DSP coefficients which I would therefore expect to be
configurable at runtime via a binary control rather than specified in
the DT - why are they in the DT?
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