Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) # SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) # PPS clients configuration
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) comment "PPS clients support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) config PPS_CLIENT_KTIMER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 	tristate "Kernel timer client (Testing client, use for debug)"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 	  If you say yes here you get support for a PPS debugging client
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	  which uses a kernel timer to generate the PPS signal.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	  This driver can also be built as a module.  If so, the module
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	  will be called pps-ktimer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) config PPS_CLIENT_LDISC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	tristate "PPS line discipline"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	depends on TTY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	  If you say yes here you get support for a PPS source connected
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	  with the CD (Carrier Detect) pin of your serial port.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) config PPS_CLIENT_PARPORT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	tristate "Parallel port PPS client"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	depends on PARPORT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	  If you say yes here you get support for a PPS source connected
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	  with the interrupt pin of your parallel port.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) config PPS_CLIENT_GPIO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	tristate "PPS client using GPIO"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	  If you say yes here you get support for a PPS source using
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	  GPIO. To be useful you must also register a platform device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	  specifying the GPIO pin and other options, usually in your board
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	  setup.