--- zzzz-none-000/linux-3.10.107/include/linux/gpio.h	2017-06-27 09:49:32.000000000 +0000
+++ vr9-7490-729/linux-3.10.107/include/linux/gpio.h	2021-11-10 11:53:56.000000000 +0000
@@ -204,6 +204,18 @@
 	return -EINVAL;
 }
 
+static inline int gpio_lock_as_irq(struct gpio_chip *chip, unsigned int offset)
+{
+	WARN_ON(1);
+	return -EINVAL;
+}
+
+static inline void gpio_unlock_as_irq(struct gpio_chip *chip,
+				      unsigned int offset)
+{
+	WARN_ON(1);
+}
+
 static inline int irq_to_gpio(unsigned irq)
 {
 	/* irq can never have been returned from gpio_to_irq() */