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ARM: 7240/1: Make ARCH_NR_GPIO a Kconfig variable

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Change ARCH_NR_GPIO into a Kconfig variable as suggested by Russel King.
This makes ARCH_NR_GPIO single zImage friendly. The default value for
tegra is defined as well.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Peter De Schrijver (NVIDIA) 2011-12-21 10:48:45 +01:00 • committed by Russell King
commit 44986ab056
2 changed files with 13 additions and 0 deletions
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9
arch/arm/Kconfig
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@ -1565,6 +1565,15 @@ config LOCAL_TIMERS
accounting to be spread across the timer interval, preventing a
"thundering herd" at every timer tick.
config ARCH_NR_GPIO
int
default 1024 if ARCH_TEGRA
default 0
help
Maximum number of GPIOs in the system.
If unsure, leave the default value.
source kernel/Kconfig.preempt
config HZ

4
arch/arm/include/asm/gpio.h
View file

@ -1,6 +1,10 @@
#ifndef _ARCH_ARM_GPIO_H
#define _ARCH_ARM_GPIO_H
#if CONFIG_ARCH_NR_GPIO > 0
#define ARCH_NR_GPIO CONFIG_ARCH_NR_GPIO
#endif
/* not all ARM platforms necessarily support this API ... */
#include <mach/gpio.h>