[alsa-devel] [PATCH 4/9] ASoC: arizona: Move calculation of FLL configuration

Mark Brown broonie at kernel.org
Sun Mar 9 09:26:49 CET 2014

On Fri, Mar 07, 2014 at 04:34:20PM +0000, Charles Keepax wrote:
> Currently the FLL configuration is calculated before it is known which
> FLL path the configuration will be applied to. Newer versions of the IP
> have differences in the configuration required for each FLL path, which
> makes it complicated to calculate the FLL configuration in advance.
> This patch simply checks the validity of a requested input and output
> frequency before we know which FLL path they will be applied to and
> saves the actual calculation of the configuration until we know where
> the settings will be applied.

I'll apply this but are you sure that this validity check is actually
accurate?  For some of the devices there were input/output
configurations that couldn't be reached due to constraints in the system
even though both input and output were in range.
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