Re: [PATCH] ASoC: fsl_spdif: don't change the root clock rate of spdif in driver

On Tue, Sep 16, 2014 at 11:19:28AM -0700, Nicolin Chen wrote:

So I think, if it's a shared clock, we should not define it as a
rate-changeable one in the SoC level, as we might still have some
SoCs provide a dedicated clock to S/PDIF so as to get the maximum
range of clock support for users.

@Shawn
Sorry to involve you in this topic. I'm not so sure if we can do
this in the clock driver so that the clock rate would be fixed
even if the driver is trying to change it. If we can, I think we
may use a better solution here instead.

I tend to agree here.  My first thought here is that we should have
support in the clock API for constraining clocks in the clock API so we
can still set the clock where there's a possibility to do that.  Not
trivail to implement though.