diff --git a/drivers/i2c/busses/i2c-axxia.c b/drivers/i2c/busses/i2c-axxia.c
index 4351a9343058920e76bf9aa39eabceedf7a0a570..13f07482ec68cedb1e24eb1d92ac6939a394a97f 100644
--- a/drivers/i2c/busses/i2c-axxia.c
+++ b/drivers/i2c/busses/i2c-axxia.c
@@ -489,7 +489,7 @@ static const struct i2c_algorithm axxia_i2c_algo = {
 	.functionality = axxia_i2c_func,
 };
 
-static struct i2c_adapter_quirks axxia_i2c_quirks = {
+static const struct i2c_adapter_quirks axxia_i2c_quirks = {
 	.max_read_len = 255,
 	.max_write_len = 255,
 };
diff --git a/drivers/i2c/busses/i2c-bcm-iproc.c b/drivers/i2c/busses/i2c-bcm-iproc.c
index 326b3db02c48b2cfce1591243e5db8e9b57855ba..318df559adc5cd262d97e6f8de70fb678ded2b9c 100644
--- a/drivers/i2c/busses/i2c-bcm-iproc.c
+++ b/drivers/i2c/busses/i2c-bcm-iproc.c
@@ -395,7 +395,7 @@ static const struct i2c_algorithm bcm_iproc_algo = {
 	.functionality = bcm_iproc_i2c_functionality,
 };
 
-static struct i2c_adapter_quirks bcm_iproc_i2c_quirks = {
+static const struct i2c_adapter_quirks bcm_iproc_i2c_quirks = {
 	/* need to reserve one byte in the FIFO for the slave address */
 	.max_read_len = M_TX_RX_FIFO_SIZE - 1,
 };
diff --git a/drivers/i2c/busses/i2c-dln2.c b/drivers/i2c/busses/i2c-dln2.c
index 8acda2aa15583c327221d4f9a30f74566123aaee..69075a32073e4a8281fe91301d2e68eba3674d2d 100644
--- a/drivers/i2c/busses/i2c-dln2.c
+++ b/drivers/i2c/busses/i2c-dln2.c
@@ -182,7 +182,7 @@ static const struct i2c_algorithm dln2_i2c_usb_algorithm = {
 	.functionality = dln2_i2c_func,
 };
 
-static struct i2c_adapter_quirks dln2_i2c_quirks = {
+static const struct i2c_adapter_quirks dln2_i2c_quirks = {
 	.max_read_len = DLN2_I2C_MAX_XFER_SIZE,
 	.max_write_len = DLN2_I2C_MAX_XFER_SIZE,
 };
diff --git a/drivers/i2c/busses/i2c-viperboard.c b/drivers/i2c/busses/i2c-viperboard.c
index 543456a0a3382df396df4329fb301e657a1bcc7c..e4be86b3de9a28b201bcd197470ab3a3a78ee683 100644
--- a/drivers/i2c/busses/i2c-viperboard.c
+++ b/drivers/i2c/busses/i2c-viperboard.c
@@ -354,7 +354,7 @@ static const struct i2c_algorithm vprbrd_algorithm = {
 	.functionality	= vprbrd_i2c_func,
 };
 
-static struct i2c_adapter_quirks vprbrd_quirks = {
+static const struct i2c_adapter_quirks vprbrd_quirks = {
 	.max_read_len = 2048,
 	.max_write_len = 2048,
 };