linux-kernel - [PATCH net-next 0/3] ptp: Add adjust phase to support phase offset.

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Date:   Wed, 29 Apr 2020 20:28:22 -0400
From:   <vincent.cheng.xh@...esas.com>
To:     <richardcochran@...il.com>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-kselftest@...r.kernel.org>,
        Vincent Cheng <vincent.cheng.xh@...esas.com>
Subject: [PATCH net-next 0/3] ptp: Add adjust phase to support phase offset.

From: Vincent Cheng <vincent.cheng.xh@...esas.com>

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.

Vincent Cheng (3):
  ptp: Add adjphase function to support phase offset control.
  ptp: Add adjust_phase to ptp_clock_caps capability.
  ptp: ptp_clockmatrix: Add adjphase() to support PHC write phase mode.

 drivers/ptp/ptp_chardev.c             |   1 +
 drivers/ptp/ptp_clock.c               |   2 +
 drivers/ptp/ptp_clockmatrix.c         | 123 ++++++++++++++++++++++++++++++++++
 drivers/ptp/ptp_clockmatrix.h         |  11 ++-
 include/linux/ptp_clock_kernel.h      |   6 +-
 include/uapi/linux/ptp_clock.h        |   4 +-
 tools/testing/selftests/ptp/testptp.c |   6 +-
 7 files changed, 147 insertions(+), 6 deletions(-)

-- 
2.7.4