[PATCH] MIPS: rb532: export rb532_gpio_set_func()

[Phil Sutter <n0-1@freewrt.org>]

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>
---
 arch/mips/include/asm/mach-rc32434/gpio.h |    1 +
 arch/mips/rb532/gpio.c                    |    5 +++--
 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 ca92c81..3cb50d1 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 f338681..37de05d 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)
 {
-- 
1.5.6.4