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of/gpio: Implement of_gpio_count()

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This function is used to count how many GPIOs are specified for
a device node.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Anton Vorontsov 2008-12-05 08:15:54 +00:00 • committed by Paul Mackerras
parent 7736a3db98
commit 749820928a
2 changed files with 40 additions and 0 deletions
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6
include/linux/of_gpio.h
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@ -65,6 +65,7 @@ static inline struct of_mm_gpio_chip *to_of_mm_gpio_chip(struct gpio_chip *gc)
extern int of_get_gpio_flags(struct device_node *np, int index,
enum of_gpio_flags *flags);
extern unsigned int of_gpio_count(struct device_node *np);
extern int of_mm_gpiochip_add(struct device_node *np,
struct of_mm_gpio_chip *mm_gc);
@ -81,6 +82,11 @@ static inline int of_get_gpio_flags(struct device_node *np, int index,
return -ENOSYS;
}
static inline unsigned int of_gpio_count(struct device_node *np)
{
return 0;
}
#endif /* CONFIG_OF_GPIO */
/**