diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c
index 08c9091a1e35..4e07babea9c3 100644
--- a/drivers/i2c/busses/i2c-mxs.c
+++ b/drivers/i2c/busses/i2c-mxs.c
@@ -108,6 +108,14 @@ enum mxs_i2c_devtype {
  * @cmd_complete: completion object for transaction wait
  * @cmd_err: error code for last transaction
  * @adapter: i2c subsystem adapter node
+ * @timing0: I2C TIMING0 register value
+ * @timing1: I2C TIMING1 register value
+ * @timing2: I2C TIMING2 register value
+ * @dmach: DMA channel
+ * @pio_data: PIO data for DMA
+ * @addr_data: address data for DMA
+ * @sg_io: scatterlist for I/O
+ * @dma_read: flag indicating DMA read
  */
 struct mxs_i2c_dev {
 	struct device *dev;