Messages in this thread Patch in this message | | | From | Peter De Schrijver <> | Subject | [PATCH 1/3] ARM: ARCH_NR_GPIO: Make ARCH_NR_GPIO a Kconfig variable | Date | Thu, 3 Nov 2011 19:00:45 +0200 |
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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> --- arch/arm/Kconfig | 9 +++++++++ arch/arm/include/asm/gpio.h | 4 ++++ 2 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 7e8ffe7..924f685 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1507,6 +1507,15 @@ 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 diff --git a/arch/arm/include/asm/gpio.h b/arch/arm/include/asm/gpio.h index 11ad0bf..7151753 100644 --- a/arch/arm/include/asm/gpio.h +++ b/arch/arm/include/asm/gpio.h @@ -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> -- 1.7.7.rc0.72.g4b5ea.dirty
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