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MIPS: RB532: Export rb532_gpio_set_func()

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This kernel symbol provides a way for drivers to switch on alternate
function for a certain GPIO pin. Turning it off is done implicitly when
changing the GPIO direction, as that would be fixed when using the given
pin als alternate function.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Phil Sutter 2009-01-22 19:32:43 +01:00 committed by Ralf Baechle
parent 3828ee047d
commit 0fc6bc0d6e
2 changed files with 4 additions and 2 deletions
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1
arch/mips/include/asm/mach-rc32434/gpio.h
View File

@ -82,5 +82,6 @@ struct rb532_gpio_reg {
extern void rb532_gpio_set_ilevel(int bit, unsigned gpio);
extern void rb532_gpio_set_istat(int bit, unsigned gpio);
extern void rb532_gpio_set_func(unsigned gpio);
#endif /* _RC32434_GPIO_H_ */

5
arch/mips/rb532/gpio.c
View File

@ -174,10 +174,11 @@ EXPORT_SYMBOL(rb532_gpio_set_istat);
/*
* Configure GPIO alternate function
*/
static void rb532_gpio_set_func(int bit, unsigned gpio)
void rb532_gpio_set_func(unsigned gpio)
{
rb532_set_bit(bit, gpio, rb532_gpio_chip->regbase + GPIOFUNC);
rb532_set_bit(1, gpio, rb532_gpio_chip->regbase + GPIOFUNC);
}
EXPORT_SYMBOL(rb532_gpio_set_func);
int __init rb532_gpio_init(void)
{