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| author |   William Breathitt Gray <vilhelm.gray@gmail.com> | 2016-05-27 18:08:27 -0400 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-06-17 20:21:12 -0700 |
| commit | 3a4955111ad46a022f05b51f91306d864f989625 (patch) | |
| tree | 7853caf07ff990df9d2948faf821d890f41e381a /include/linux/isa.h | |
| parent | base: make module_create_drivers_dir race-free (diff) | |
| download | linux-dev-3a4955111ad46a022f05b51f91306d864f989625.tar.xz linux-dev-3a4955111ad46a022f05b51f91306d864f989625.zip | |
isa: Allow ISA-style drivers on modern systems
Several modern devices, such as PC/104 cards, are expected to run on
modern systems via an ISA bus interface. Since ISA is a legacy interface
for most modern architectures, ISA support should remain disabled in
general. Support for ISA-style drivers should be enabled on a per driver
basis.
To allow ISA-style drivers on modern systems, this patch introduces the
ISA_BUS_API and ISA_BUS Kconfig options. The ISA bus driver will now
build conditionally on the ISA_BUS_API Kconfig option, which defaults to
the legacy ISA Kconfig option. The ISA_BUS Kconfig option allows the
ISA_BUS_API Kconfig option to be selected on architectures which do not
enable ISA (e.g. X86_64).
The ISA_BUS Kconfig option is currently only implemented for X86
architectures. Other architectures may have their own ISA_BUS Kconfig
options added as required.
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/isa.h')
| -rw-r--r-- | include/linux/isa.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/isa.h b/include/linux/isa.h index 5ab85281230b..384ab9b7d79a 100644 --- a/include/linux/isa.h +++ b/include/linux/isa.h @@ -22,7 +22,7 @@ struct isa_driver { #define to_isa_driver(x) container_of((x), struct isa_driver, driver) -#ifdef CONFIG_ISA +#ifdef CONFIG_ISA_BUS_API int isa_register_driver(struct isa_driver *, unsigned int); void isa_unregister_driver(struct isa_driver *); #else |