forked from Minki/linux
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>
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@ -82,5 +82,6 @@ struct rb532_gpio_reg {
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extern void rb532_gpio_set_ilevel(int bit, unsigned gpio);
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extern void rb532_gpio_set_ilevel(int bit, unsigned gpio);
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extern void rb532_gpio_set_istat(int bit, unsigned gpio);
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extern void rb532_gpio_set_istat(int bit, unsigned gpio);
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extern void rb532_gpio_set_func(unsigned gpio);
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#endif /* _RC32434_GPIO_H_ */
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#endif /* _RC32434_GPIO_H_ */
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@ -174,10 +174,11 @@ EXPORT_SYMBOL(rb532_gpio_set_istat);
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/*
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/*
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* Configure GPIO alternate function
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* Configure GPIO alternate function
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*/
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*/
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static void rb532_gpio_set_func(int bit, unsigned gpio)
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void rb532_gpio_set_func(unsigned gpio)
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{
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{
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rb532_set_bit(bit, gpio, rb532_gpio_chip->regbase + GPIOFUNC);
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rb532_set_bit(1, gpio, rb532_gpio_chip->regbase + GPIOFUNC);
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}
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}
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EXPORT_SYMBOL(rb532_gpio_set_func);
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int __init rb532_gpio_init(void)
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int __init rb532_gpio_init(void)
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{
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{
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