omap mcbsp and prcm_fck

[Andreas Kemnade <andreas@xxxxxxxxxxxx>]

Hi,

while trying to create a devicetree for a omap4 device, I stumbled upon this:

[   59.789367] omap-mcbsp 40124000.mcbsp: CLKS: could not clk_get() prcm_fck

But where should prcm_fck come from? The string does not appear in the
devicetree binding documentation. I have seen it only in the omap_hwmod_* stuff
used by omap2/3.

So how to make mcbsp happy?

Regards,
Andreas