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authorMark Brown <broonie@opensource.wolfsonmicro.com>2012-04-15 10:52:54 +0100
committerGrant Likely <grant.likely@secretlab.ca>2012-05-11 18:00:14 -0600
commit7563bbf89d065a2c3f05059ecbcc805645edcc62 (patch)
tree2b8231e8145a73cce0da67ce38e0360fcd0a802e /drivers
parent25cf25073a4e1e0563c288908481f10f98acb19a (diff)
gpiolib/arches: Centralise bolierplate asm/gpio.h
Rather than requiring architectures that use gpiolib but don't have any need to define anything custom to copy an asm/gpio.h provide a Kconfig symbol which architectures must select in order to include gpio.h and for other architectures just provide the trivial implementation directly. This makes it much easier to do gpiolib updates and is also a step towards making gpiolib APIs available on every architecture. For architectures with existing boilerplate code leave a stub header in place which warns on direct inclusion of asm/gpio.h and includes linux/gpio.h to catch code that's doing this. Direct inclusion of asm/gpio.h has long been deprecated. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Jonas Bonn <jonas@southpole.se> Acked-by: Tony Luck <tony.luck@intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpio/Kconfig8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 5169a99e9f61..25535ebf4f90 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -2,6 +2,14 @@
# GPIO infrastructure and drivers
#
+config ARCH_HAVE_CUSTOM_GPIO_H
+ bool
+ help
+ Selecting this config option from the architecture Kconfig allows
+ the architecture to provide a custom asm/gpio.h implementation
+ overriding the default implementations. New uses of this are
+ strongly discouraged.
+
config ARCH_WANT_OPTIONAL_GPIOLIB
bool
help