While using the ancillary pin functionality of PTP hardware clocks to synchronize multiple DSA switches on a board, a need arised to be able to configure the duty cycle of the master of this PPS hierarchy.
Also, the PPS master is not able to emit PPS starting from arbitrary absolute times, so a new flag is introduced to support such hardware without making guesses. With these patches, struct ptp_perout_request now basically describes a general-purpose square wave. Vladimir Oltean (3): ptp: add ability to configure duty cycle for periodic output ptp: introduce a phase offset in the periodic output request net: mscc: ocelot: add support for PTP waveform configuration drivers/net/ethernet/mscc/ocelot_ptp.c | 74 +++++++++++++++++--------- drivers/ptp/ptp_chardev.c | 33 +++++++++--- include/uapi/linux/ptp_clock.h | 34 ++++++++++-- 3 files changed, 107 insertions(+), 34 deletions(-) -- 2.25.1
