On Wed, Aug 01, 2018 at 04:36:40AM +0000, Y.b. Lu wrote:

Could I add a function to calculate a set of default register values
to initialize ptp timer when dts method failed to get required
properties in driver?

Yes, it would be ideal if the driver can pick correct values
automatically.

However, the frequency on the FIPER outputs can't be configured
automatically, and we don't have an API for the user to choose this.

I think this will be useful. The ptp timer on new platforms (you may
see two dts patches in this patchset. Many platforms will be
affected.) will work without these dts properties. If user want
specific setting, they can set dts properties.

Sure.

Thanks,
Richard