DM timer hardware supports capture feature.It can be used
to timestamp events (falling/rising edges) detected on input signal.

The timer IO pin can also be configured in PWM mode but this
driver supports simple independent capture functionality.

Dependency: 
https://lore.kernel.org/all/f0d72eac-f842-4060-b197-ced20048b34b@linaro.org/

Gokul Praveen (3):
  dt-bindings: counter: Add new ti,omap-dmtimer-cap compatible
  counter: ti-dmtimer-cap : capture driver support for OMAP DM timer
  Enable required config for OMAP DM timer capture driver on J784S4 SOC.

 .../bindings/counter/ti,omap-dmtimer-cap.yaml |  34 ++
 arch/arm64/configs/defconfig                  |   1 +
 drivers/counter/Kconfig                       |  13 +
 drivers/counter/Makefile                      |   1 +
 drivers/counter/ti-dmtimer-cap.c              | 455 ++++++++++++++++++
 5 files changed, 504 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/counter/ti,omap-dmtimer-cap.yaml
 create mode 100644 drivers/counter/ti-dmtimer-cap.c

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2.34.1