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[PATCH] GPIO API: SA1100 wrapper cleanup

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Based on the discussion last december (http://lkml.org/lkml/2006/12/20/241),
this patch
  - adds gpio_direction_input/output functions to
    generic.c instead of making them inline,
  - fixes comment and includes and uses inline functions
    instead of macros in gpio.h

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Philipp Zabel
2007-02-20 13:58:20 -08:00
committed by Linus Torvalds
parent adff264fe6
commit 5b7e42b2d3
2 changed files with 44 additions and 20 deletions
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30
arch/arm/mach-sa1100/generic.c
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@@ -138,6 +138,36 @@ unsigned long long sched_clock(void)
return v;
}
int gpio_direction_input(unsigned gpio)
{
unsigned long flags;
if (gpio > GPIO_MAX)
return -EINVAL;
local_irq_save(flags);
GPDR &= ~GPIO_GPIO(gpio);
local_irq_restore(flags);
return 0;
}
EXPORT_SYMBOL(gpio_direction_input);
int gpio_direction_output(unsigned gpio)
{
unsigned long flags;
if (gpio > GPIO_MAX)
return -EINVAL;
local_irq_save(flags);
GPDR |= GPIO_GPIO(gpio);
local_irq_restore(flags);
return 0;
}
EXPORT_SYMBOL(gpio_direction_output);
/*
* Default power-off for SA1100
*/