Merge branch 'ptp-Add-adjust-phase-to-support-phase-offset'
Vincent Cheng says:
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ptp: Add adjust phase to support phase offset.
This series adds adjust phase to the PTP Hardware Clock device interface.
Some PTP hardware clocks have a write phase mode that has
a built-in hardware filtering capability. The write phase mode
utilizes a phase offset control word instead of a frequency offset
control word. Add adjust phase function to take advantage of this
capability.
Changes since v1:
- As suggested by Richard Cochran:
1. ops->adjphase is new so need to check for non-null function pointer.
2. Kernel coding style uses lower_case_underscores.
3. Use existing PTP clock API for delayed worker.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>