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| author | Linus Walleij <linus.walleij@linaro.org> | 2022-05-04 23:15:21 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2022-05-04 23:15:21 +0200 |
| commit | a0912083086d7b6bd7f0f1b4c2ffa6c8283a9f98 (patch) | |
| tree | 1ba060676d3f7788f054e1681b36a6ec875ce90e /include | |
| parent | pinctrl: stm32: improve bank clocks management (diff) | |
| parent | pinctrl: meson: Replace custom code by gpiochip_node_count() call (diff) | |
| download | linux-a0912083086d7b6bd7f0f1b4c2ffa6c8283a9f98.tar.xz linux-a0912083086d7b6bd7f0f1b4c2ffa6c8283a9f98.zip | |
Merge tag 'intel-gpio-v5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-gpio-intel into devel
intel-gpio for v5.19-1
* Introduce helpers to iterate over GPIO chip nodes and covert some drivers
The following is an automated git shortlog grouped by driver:
gpiolib:
- Introduce a helper to get first GPIO controller node
- Introduce gpiochip_node_count() helper
- Introduce for_each_gpiochip_node() loop helper
pinctrl:
- meson: Replace custom code by gpiochip_node_count() call
- meson: Enable COMPILE_TEST
- meson: Rename REG_* to MESON_REG_*
- armada-37xx: Reuse GPIO fwnode in armada_37xx_irqchip_register()
- armada-37xx: Switch to use fwnode instead of of_node
- samsung: Switch to use for_each_gpiochip_node() helper
- samsung: Drop redundant node parameter in samsung_banks_of_node_get()
- npcm7xx: Switch to use for_each_gpiochip_node() helper
- renesas: rza1: Switch to use for_each_gpiochip_node() helper
- renesas: rza1: Replace custom code by gpiochip_node_count() call
- stm32: Switch to use for_each_gpiochip_node() helper
- stm32: Replace custom code by gpiochip_node_count() call
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/gpio/driver.h | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index 48d03eb4e5d8..f06236b2a34b 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; @@ -771,4 +772,29 @@ 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 + +static inline unsigned int gpiochip_node_count(struct device *dev) +{ + struct fwnode_handle *child; + unsigned int count = 0; + + for_each_gpiochip_node(dev, child) + count++; + + return count; +} + +static inline struct fwnode_handle *gpiochip_node_get_first(struct device *dev) +{ + struct fwnode_handle *fwnode; + + for_each_gpiochip_node(dev, fwnode) + return fwnode; + + return NULL; +} + #endif /* __LINUX_GPIO_DRIVER_H */ |