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authorPhil Sutter <n0-1@freewrt.org>2009-01-22 19:32:43 +0100
committerRalf Baechle <ralf@linux-mips.org>2009-01-30 21:33:01 +0000
commit0fc6bc0d6e953f6dd80c286c889d8d581e8f8d7a (patch)
treee1f055c238ca395c32cd52a8869204cc148dbc53
parent3828ee047d3c8e0d0e8e9f4d738bd8593220299a (diff)
downloadlinux-0fc6bc0d6e953f6dd80c286c889d8d581e8f8d7a.tar.bz2
MIPS: RB532: Export rb532_gpio_set_func()
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>
-rw-r--r--arch/mips/include/asm/mach-rc32434/gpio.h1
-rw-r--r--arch/mips/rb532/gpio.c5
2 files changed, 4 insertions, 2 deletions
diff --git a/arch/mips/include/asm/mach-rc32434/gpio.h b/arch/mips/include/asm/mach-rc32434/gpio.h
index ca92c81f4067..3cb50d17b62d 100644
--- a/arch/mips/include/asm/mach-rc32434/gpio.h
+++ b/arch/mips/include/asm/mach-rc32434/gpio.h
@@ -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_ */
diff --git a/arch/mips/rb532/gpio.c b/arch/mips/rb532/gpio.c
index f33868159826..37de05d595e7 100644
--- a/arch/mips/rb532/gpio.c
+++ b/arch/mips/rb532/gpio.c
@@ -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)
{