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| author | eric miao <eric.y.miao@gmail.com> | 2007-08-29 10:18:47 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2007-10-12 21:15:32 +0100 |
| commit | 30f0b40844e5add7ad879e2f5939ff498f72f3e6 (patch) | |
| tree | c899a6cc6b9e3a0d998b6b5e15d3208eae51dcfb /arch/arm/mach-pxa/generic.c | |
| parent | 37c2f779a4eabf7c6a39e6f9ded0ec3471ed5995 (diff) | |
| download | lwn-30f0b40844e5add7ad879e2f5939ff498f72f3e6.tar.gz lwn-30f0b40844e5add7ad879e2f5939ff498f72f3e6.zip | |
[ARM] 4559/1: pxa: make PXA_LAST_GPIO a run-time variable
This definition produces processor specific code in generic function
pxa_gpio_mode(), thus creating inconsistencies for support of pxa25x
and pxa27x in a single zImage.
As David Brownell suggests, make it a run-time variable and initialize
at run-time according to the number of GPIOs on the processor. For now
the initialization happens in pxa_init_irq_gpio(), since there is
already a parameter for that, besides, this is and MUST be earlier
than any subsequent calls to pxa_gpio_mode().
Signed-off-by: eric miao <eric.y.miao@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-pxa/generic.c')
| -rw-r--r-- | arch/arm/mach-pxa/generic.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c index 1c5413fc6e74..eed95eaf58cd 100644 --- a/arch/arm/mach-pxa/generic.c +++ b/arch/arm/mach-pxa/generic.c @@ -71,6 +71,7 @@ EXPORT_SYMBOL(get_memclk_frequency_10khz); /* * Handy function to set GPIO alternate functions */ +int pxa_last_gpio; int pxa_gpio_mode(int gpio_mode) { @@ -79,7 +80,7 @@ int pxa_gpio_mode(int gpio_mode) int fn = (gpio_mode & GPIO_MD_MASK_FN) >> 8; int gafr; - if (gpio > PXA_LAST_GPIO) + if (gpio > pxa_last_gpio) return -EINVAL; local_irq_save(flags); |