diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2022-04-01 13:35:52 +0300 |
|---|---|---|
| committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2022-04-08 15:54:53 +0300 |
| commit | 85ebb1a6bd62147ebcfa70500d513331a8daf9e0 (patch) | |
| tree | fa336a6ab4df6001a243665ab267519af32edcca /include/linux/gpio | |
| parent | 0c2cae09a765b1c1d842eb9328982976ec735926 (diff) | |
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: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Bartosz Golaszewski <brgl@bgdev.pl>
Diffstat (limited to 'include/linux/gpio')
| -rw-r--r-- | include/linux/gpio/driver.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index 98c93510640e..bfc91f122d5f 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -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 */ |