--- zzzz-none-000/linux-4.4.60/drivers/i2c/busses/i2c-designware-core.h	2017-04-08 07:53:53.000000000 +0000
+++ scorpion-1750e-727/linux-4.4.60/drivers/i2c/busses/i2c-designware-core.h	2021-02-04 17:41:59.000000000 +0000
@@ -107,6 +107,7 @@
 	int			(*acquire_lock)(struct dw_i2c_dev *dev);
 	void			(*release_lock)(struct dw_i2c_dev *dev);
 	bool			pm_runtime_disabled;
+	u32			is_old_version;
 };
 
 #define ACCESS_SWAP		0x00000001