[PATCH v5 1/6] gpiolib: Introduce a helper to get first GPIO controller node
Andy Shevchenko
andriy.shevchenko at linux.intel.com
Thu Apr 14 12:02:37 PDT 2022
Introduce a helper to get first GPIO controller node which drivers
may want to use.
Signed-off-by: Andy Shevchenko <andriy.shevchenko at linux.intel.com>
---
include/linux/gpio/driver.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index 12de0b22b4ef..83e2d72e51bb 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -766,4 +766,14 @@ static inline unsigned int gpiochip_node_count(struct device *dev)
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 */
--
2.35.1
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