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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2022-04-01 13:35:52 +0300
committerAndy Shevchenko <andriy.shevchenko@linux.intel.com>2022-04-08 15:54:53 +0300
commit85ebb1a6bd62147ebcfa70500d513331a8daf9e0 (patch)
treefa336a6ab4df6001a243665ab267519af32edcca /include/linux/gpio
parent0c2cae09a765b1c1d842eb9328982976ec735926 (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.h7
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 */