On Wed, Apr 30, 2014 at 05:30:39PM +0530, Tushar Behera wrote:

> XCLKOUT mux register (0x10040a00) is not part of core clock SFR range,
> rather it is part of pmu-system-controller node.

> One option would be to add a clock provider for XCLKOUT. That would
> require me to extend current clock driver to get the
> pmu-system-controller phandle which in turn is dependent on the patch to
> early initialize syscon driver.[1]

> Will it be okay to configure XCLKOUT in snow sound-card driver by taking
> the phandle of pmu-system-controller from device tree? The
> implementation is provided below.

I can't think of any reason why we'd not want to have this visible as a
clock?  Ideally we don't want to have any ASoC specific clock APIs when
we're done, the reason we do at the minute is that the clock API isn't
available as standard.