On Mon, Jul 08, 2019 at 03:38:37PM -0600, Rob Herring wrote:

quoted

+Required properties of the control node:
+
+- compatible:		"ines,ptp-ctrl"

This is an IP block that gets integrated into SoCs?

It is an IP block implemented in an FPGA (like the zync or the socfpga).

It's not very 
specific given that there could be different versions of the IP block 
and SoC vendors can integrate various versions of the IP block in their 
own unique (i.e. buggy) way.

There is a version register where both the interface and FPGA are
versioned.  The driver doesn't presently do anything with that field,
but if newer interfaces appear, then the driver can deal with that
without any DT help.

Thanks,
Richard