Commit 85ebb1a6 authored by Andy Shevchenko's avatar Andy Shevchenko
Browse files

gpiolib: Introduce for_each_gpiochip_node() loop helper 



Introduce for_each_gpiochip_node() loop helper which iterates over
the GPIO controller child nodes of a given device.

Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Tested-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Acked-by: default avatarBartosz Golaszewski <brgl@bgdev.pl>
parent 0c2cae09

include/linux/gpio/driver.h

+6 −1
Original line number Diff line number Diff line
@@ -3,13 +3,14 @@ 
#define __LINUX_GPIO_DRIVER_H



#include <linux/device.h>

#include <linux/types.h>

#include <linux/irq.h>

#include <linux/irqchip/chained_irq.h>

#include <linux/irqdomain.h>

#include <linux/lockdep.h>

#include <linux/pinctrl/pinctrl.h>

#include <linux/pinctrl/pinconf-generic.h>

#include <linux/property.h>

#include <linux/types.h>



struct gpio_desc;

struct of_phandle_args;
@@ -750,4 +751,8 @@ static inline void gpiochip_unlock_as_irq(struct gpio_chip *gc, 
}

#endif /* CONFIG_GPIOLIB */



#define for_each_gpiochip_node(dev, child)					\

	device_for_each_child_node(dev, child)					\

		if (!fwnode_property_present(child, "gpio-controller")) {} else



#endif /* __LINUX_GPIO_DRIVER_H */