Some PTP devices support looping back the periodic pulse signal for debugging, so add the generic debugfs interfaces to the ptp_clock driver. The first two patch are separated from the previous patch set [1]. The third patch is new added.
[1]: https://lore.kernel.org/imx/20250827063332.1217664-1-wei.f...@nxp.com/ #patch 3 and 9 Wei Fang (3): ptp: add debugfs interfaces to loop back the periodic output signal ptp: netc: add the periodic output signal loopback support ptp: qoriq: covert to use generic interfaces to set loopback mode MAINTAINERS | 1 - drivers/ptp/Kconfig | 2 +- drivers/ptp/Makefile | 4 +- drivers/ptp/ptp_clock.c | 66 ++++++++++++++++++++ drivers/ptp/ptp_netc.c | 25 ++++++++ drivers/ptp/ptp_qoriq.c | 24 +++++++- drivers/ptp/ptp_qoriq_debugfs.c | 101 ------------------------------- include/linux/fsl/ptp_qoriq.h | 10 --- include/linux/ptp_clock_kernel.h | 10 +++ 9 files changed, 125 insertions(+), 118 deletions(-) delete mode 100644 drivers/ptp/ptp_qoriq_debugfs.c -- 2.34.1
