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[0/5] Add PPS pulse-width support

Message ID 20230625142134.33690-1-farbere@amazon.com
Headers show
Series Add PPS pulse-width support | expand

Message

Farber, Eliav June 25, 2023, 2:21 p.m. UTC 
This series of five patches adds pulse-width calculation support to the
pps core (patch 1)
It then enables pulse-width calculation for the pps-gpio driver (patches
2 - 5).

*) Pulse-width in measured in nano seconds.
*) Width time can be calculated for both assert-time and reset-time.
*) New sysfs were added to expose the pulse-width.
*) Support was added to pps-gpio driver to enable capture-clear based on
   device-tree. 
*) Enabling pulse-width calculation for pps-gpio driver is done based on
   new boolean device-tree properties.

Eliav Farber (5):
  pps: add pulse-width calculation in nsec
  dt-bindings: pps: pps-gpio: introduce capture-clear property
  pps: clients: gpio: add option to set capture-clear from device-tree
  dt-bindings: pps: pps-gpio: introduce pulse-width properties
  pps: clients: gpio: enable pps pulse-width calculations based on
    device-tree

 .../devicetree/bindings/pps/pps-gpio.txt      | 10 ++++
 drivers/pps/clients/pps-gpio.c                | 15 ++++++
 drivers/pps/kapi.c                            | 49 +++++++++++++++++++
 drivers/pps/pps.c                             |  9 ++++
 drivers/pps/sysfs.c                           | 30 ++++++++++++
 include/linux/pps_kernel.h                    |  3 ++
 include/uapi/linux/pps.h                      | 19 +++++++
 7 files changed, 135 insertions(+)