diff mbox series

[v4,01/13] gpiolib: Introduce for_each_gpiochip_node() loop helper

Message ID 20220401103604.8705-2-andriy.shevchenko@linux.intel.com
State New
Headers show
Series gpiolib: Two new helpers and way toward fwnode | expand

Commit Message

Andy Shevchenko April 1, 2022, 10:35 a.m. UTC
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>
---
 include/linux/gpio/driver.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

Comments

Bartosz Golaszewski April 5, 2022, 12:12 p.m. UTC | #1
On Fri, Apr 1, 2022 at 12:36 PM Andy Shevchenko
<andriy.shevchenko@linux.intel.com> wrote:
>
> 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>
> ---
>  include/linux/gpio/driver.h | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
>
> 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 */
> --
> 2.35.1
>

Acked-by: Bartosz Golaszewski <brgl@bgdev.pl>
diff mbox series

Patch

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 */