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    Subject[PATCH 1/3] ARM: ARCH_NR_GPIO: Make ARCH_NR_GPIO a Kconfig variable
    Date
    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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