From 5b7e42b2d38e4c4d0cb105a2ad83d43f6957f59e Mon Sep 17 00:00:00 2001 From: Philipp Zabel Date: Tue, 20 Feb 2007 13:58:20 -0800 Subject: [PATCH] GPIO API: SA1100 wrapper cleanup 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 Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/arm/mach-sa1100/generic.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) (limited to 'arch') diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c index e510295c258..192a5a26cf2 100644 --- a/arch/arm/mach-sa1100/generic.c +++ b/arch/arm/mach-sa1100/generic.c @@ -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 */ -- cgit v1.2.3-18-g5258