Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/linux/of_gpio.h b/include/linux/of_gpio.h
index 163b79e..1696739 100644
--- a/include/linux/of_gpio.h
+++ b/include/linux/of_gpio.h
@@ -28,6 +28,8 @@
 	OF_GPIO_SINGLE_ENDED = 0x2,
 	OF_GPIO_OPEN_DRAIN = 0x4,
 	OF_GPIO_TRANSITORY = 0x8,
+	OF_GPIO_PULL_UP = 0x10,
+	OF_GPIO_PULL_DOWN = 0x20,
 };
 
 #ifdef CONFIG_OF_GPIO
@@ -59,10 +61,6 @@
 }
 extern void of_mm_gpiochip_remove(struct of_mm_gpio_chip *mm_gc);
 
-extern int of_gpio_simple_xlate(struct gpio_chip *gc,
-				const struct of_phandle_args *gpiospec,
-				u32 *flags);
-
 #else /* CONFIG_OF_GPIO */
 
 /* Drivers may not strictly depend on the GPIO support, so let them link. */
@@ -75,13 +73,6 @@
 	return -ENOSYS;
 }
 
-static inline int of_gpio_simple_xlate(struct gpio_chip *gc,
-				       const struct of_phandle_args *gpiospec,
-				       u32 *flags)
-{
-	return -ENOSYS;
-}
-
 #endif /* CONFIG_OF_GPIO */
 
 /**