mbox series

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

Message ID 1588206505-21773-1-git-send-email-vincent.cheng.xh@renesas.com
Headers show
Series ptp: Add adjust phase to support phase offset. | expand

Message

Vincent Cheng April 30, 2020, 12:28 a.m. UTC 
From: Vincent Cheng <vincent.cheng.xh@renesas.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(-)