1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/gpio/gpiolib-of.h b/drivers/gpio/gpiolib-of.h
new file mode 100644
index 000000000..ed26664f1
--- /dev/null
+++ b/drivers/gpio/gpiolib-of.h
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef GPIOLIB_OF_H
+#define GPIOLIB_OF_H
+
+struct gpio_chip;
+enum of_gpio_flags;
+
+#ifdef CONFIG_OF_GPIO
+struct gpio_desc *of_find_gpio(struct device *dev,
+			       const char *con_id,
+			       unsigned int idx,
+			       unsigned long *lookupflags);
+int of_gpiochip_add(struct gpio_chip *gc);
+void of_gpiochip_remove(struct gpio_chip *gc);
+int of_gpio_get_count(struct device *dev, const char *con_id);
+bool of_gpio_need_valid_mask(const struct gpio_chip *gc);
+#else
+static inline struct gpio_desc *of_find_gpio(struct device *dev,
+					     const char *con_id,
+					     unsigned int idx,
+					     unsigned long *lookupflags)
+{
+	return ERR_PTR(-ENOENT);
+}
+static inline int of_gpiochip_add(struct gpio_chip *gc) { return 0; }
+static inline void of_gpiochip_remove(struct gpio_chip *gc) { }
+static inline int of_gpio_get_count(struct device *dev, const char *con_id)
+{
+	return 0;
+}
+static inline bool of_gpio_need_valid_mask(const struct gpio_chip *gc)
+{
+	return false;
+}
+#endif /* CONFIG_OF_GPIO */
+
+extern struct notifier_block gpio_of_notifier;
+
+#endif /* GPIOLIB_OF_H */