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) # Plug and Play BIOS configuration
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) config PNPBIOS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 	bool "Plug and Play BIOS support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 	depends on ISA && X86_32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 	default n
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 	  Linux uses the PNPBIOS as defined in "Plug and Play BIOS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 	  Specification Version 1.0A May 5, 1994" to autodetect built-in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	  mainboard resources (e.g. parallel port resources).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	  Some features (e.g. event notification, docking station information,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	  ISAPNP services) are not currently implemented.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	  If you would like the kernel to detect and allocate resources to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	  your mainboard devices (on some systems they are disabled by the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	  BIOS) say Y here.  Also the PNPBIOS can help prevent resource
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	  conflicts between mainboard devices and other bus devices.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	  Note: ACPI is expected to supersede PNPBIOS some day, currently it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	  co-exists nicely.  If you have a non-ISA system that supports ACPI,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	  you probably don't need PNPBIOS support.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) config PNPBIOS_PROC_FS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	bool "Plug and Play BIOS /proc interface"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	depends on PNPBIOS && PROC_FS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	  If you say Y here and to "/proc file system support", you will be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	  able to directly access the PNPBIOS.  This includes resource
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	  allocation, ESCD, and other PNPBIOS services.  Using this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	  interface is potentially dangerous because the PNPBIOS driver will
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	  not be notified of any resource changes made by writing directly.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	  Also some buggy systems will fault when accessing certain features
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	  in the PNPBIOS /proc interface (e.g. "boot" configs).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	  See the latest pcmcia-cs (stand-alone package) for a nice set of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	  PNPBIOS /proc interface tools (lspnp and setpnp).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	  Unless you are debugging or have other specific reasons, it is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	  recommended that you say N here.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)