Merge branch 'qed-ptp'

Yuval Mintz says:

====================
qed*: Add support for PTP

This patch series adds required changes for qed/qede drivers for
supporting the IEEE Precision Time Protocol (PTP).

Changes from previous versions:
v7: Fixed Kbuild robot warnings.

v6: Corrected broken loop iteration in previous version.
    Reduced approximation error of adjfreq.

v5: Removed two divisions from the adjust-frequency loop.
    Resulting logic would use 8 divisions [instead of 24].

v4: Remove the loop iteration for value '0' in the qed_ptp_hw_adjfreq()
    implementation.

v3: Use div_s64 for 64-bit divisions as do_div gives error for signed
    types.
    Incorporated review comments from Richard Cochran.
      - Clear timestamp resgisters as soon as timestamp is read.
      - Use shift operation in the place of 'divide by 16'.

v2: Use do_div for 64-bit divisions.
====================

Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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