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authorArnd Bergmann <arnd@arndb.de>2016-02-16 16:40:38 +0100
committerLinus Walleij <linus.walleij@linaro.org>2016-02-19 00:22:54 +0100
commitaa6aedb547209391db75b2e4fdbce6b442fd5891 (patch)
tree5bcf3f76c49492d828110606e5e7d7684e95287f
parentd7f7764e02ad8c4c8919b2484212aca788001765 (diff)
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op-kernel-dev-aa6aedb547209391db75b2e4fdbce6b442fd5891.tar.gz
gpio: allow setting ARCH_NR_GPIOS from Kconfig
The ARM version of asm/gpio.h basically just contains the same definitions as the gpiolib version, with the exception of ARCH_NR_GPIOS. This adds the option for overriding the constant through Kconfig to the architecture-independent header, so we can remove the ARM specific file later. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
-rw-r--r--include/asm-generic/gpio.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index 40ec143..8ca627d 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -26,8 +26,12 @@
*/
#ifndef ARCH_NR_GPIOS
+#if defined(CONFIG_ARCH_NR_GPIO) && CONFIG_ARCH_NR_GPIO > 0
+#define ARCH_NR_GPIOS CONFIG_ARCH_NR_GPIO
+#else
#define ARCH_NR_GPIOS 512
#endif
+#endif
/*
* "valid" GPIO numbers are nonnegative and may be passed to
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