diff --git a/drivers/i2c/busses/i2c-brcmstb.c b/drivers/i2c/busses/i2c-brcmstb.c
index 78792b4d6437..826d32049996 100644
--- a/drivers/i2c/busses/i2c-brcmstb.c
+++ b/drivers/i2c/busses/i2c-brcmstb.c
@@ -689,9 +689,9 @@ static int brcmstb_i2c_suspend(struct device *dev)
 {
 	struct brcmstb_i2c_dev *i2c_dev = dev_get_drvdata(dev);
 
-	i2c_lock_adapter(&i2c_dev->adapter);
+	i2c_lock_bus(&i2c_dev->adapter, I2C_LOCK_ROOT_ADAPTER);
 	i2c_dev->is_suspended = true;
-	i2c_unlock_adapter(&i2c_dev->adapter);
+	i2c_unlock_bus(&i2c_dev->adapter, I2C_LOCK_ROOT_ADAPTER);
 
 	return 0;
 }
@@ -700,10 +700,10 @@ static int brcmstb_i2c_resume(struct device *dev)
 {
 	struct brcmstb_i2c_dev *i2c_dev = dev_get_drvdata(dev);
 
-	i2c_lock_adapter(&i2c_dev->adapter);
+	i2c_lock_bus(&i2c_dev->adapter, I2C_LOCK_ROOT_ADAPTER);
 	brcmstb_i2c_set_bsc_reg_defaults(i2c_dev);
 	i2c_dev->is_suspended = false;
-	i2c_unlock_adapter(&i2c_dev->adapter);
+	i2c_unlock_bus(&i2c_dev->adapter, I2C_LOCK_ROOT_ADAPTER);
 
 	return 0;
 }
diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c
index 75d6ab177055..d945a2654c2f 100644
--- a/drivers/i2c/busses/i2c-davinci.c
+++ b/drivers/i2c/busses/i2c-davinci.c
@@ -714,14 +714,14 @@ static int i2c_davinci_cpufreq_transition(struct notifier_block *nb,
 
 	dev = container_of(nb, struct davinci_i2c_dev, freq_transition);
 
-	i2c_lock_adapter(&dev->adapter);
+	i2c_lock_bus(&dev->adapter, I2C_LOCK_ROOT_ADAPTER);
 	if (val == CPUFREQ_PRECHANGE) {
 		davinci_i2c_reset_ctrl(dev, 0);
 	} else if (val == CPUFREQ_POSTCHANGE) {
 		i2c_davinci_calc_clk_dividers(dev);
 		davinci_i2c_reset_ctrl(dev, 1);
 	}
-	i2c_unlock_adapter(&dev->adapter);
+	i2c_unlock_bus(&dev->adapter, I2C_LOCK_ROOT_ADAPTER);
 
 	return 0;
 }
diff --git a/drivers/i2c/busses/i2c-gpio.c b/drivers/i2c/busses/i2c-gpio.c
index 66f85bbf3591..20b3dd756fc7 100644
--- a/drivers/i2c/busses/i2c-gpio.c
+++ b/drivers/i2c/busses/i2c-gpio.c
@@ -78,24 +78,24 @@ static struct dentry *i2c_gpio_debug_dir;
 #define getscl(bd)	((bd)->getscl((bd)->data))
 
 #define WIRE_ATTRIBUTE(wire) \
-static int fops_##wire##_get(void *data, u64 *val)	\
-{							\
-	struct i2c_gpio_private_data *priv = data;	\
-							\
-	i2c_lock_adapter(&priv->adap);			\
-	*val = get##wire(&priv->bit_data);		\
-	i2c_unlock_adapter(&priv->adap);		\
-	return 0;					\
-}							\
-static int fops_##wire##_set(void *data, u64 val)	\
-{							\
-	struct i2c_gpio_private_data *priv = data;	\
-							\
-	i2c_lock_adapter(&priv->adap);			\
-	set##wire(&priv->bit_data, val);		\
-	i2c_unlock_adapter(&priv->adap);		\
-	return 0;					\
-}							\
+static int fops_##wire##_get(void *data, u64 *val)		\
+{								\
+	struct i2c_gpio_private_data *priv = data;		\
+								\
+	i2c_lock_bus(&priv->adap, I2C_LOCK_ROOT_ADAPTER);	\
+	*val = get##wire(&priv->bit_data);			\
+	i2c_unlock_bus(&priv->adap, I2C_LOCK_ROOT_ADAPTER);	\
+	return 0;						\
+}								\
+static int fops_##wire##_set(void *data, u64 val)		\
+{								\
+	struct i2c_gpio_private_data *priv = data;		\
+								\
+	i2c_lock_bus(&priv->adap, I2C_LOCK_ROOT_ADAPTER);	\
+	set##wire(&priv->bit_data, val);			\
+	i2c_unlock_bus(&priv->adap, I2C_LOCK_ROOT_ADAPTER);	\
+	return 0;						\
+}								\
 DEFINE_DEBUGFS_ATTRIBUTE(fops_##wire, fops_##wire##_get, fops_##wire##_set, "%llu\n")
 
 WIRE_ATTRIBUTE(scl);
@@ -113,7 +113,7 @@ static int fops_incomplete_transfer_set(void *data, u64 addr)
 	/* ADDR (7 bit) + RD (1 bit) + SDA hi (1 bit) */
 	pattern = (addr << 2) | 3;
 
-	i2c_lock_adapter(&priv->adap);
+	i2c_lock_bus(&priv->adap, I2C_LOCK_ROOT_ADAPTER);
 
 	/* START condition */
 	setsda(bit_data, 0);
@@ -129,7 +129,7 @@ static int fops_incomplete_transfer_set(void *data, u64 addr)
 		udelay(bit_data->udelay);
 	}
 
-	i2c_unlock_adapter(&priv->adap);
+	i2c_unlock_bus(&priv->adap, I2C_LOCK_ROOT_ADAPTER);
 
 	return 0;
 }
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index 9fe2b6951895..2f2e28d60ef5 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -919,9 +919,9 @@ static int s3c24xx_i2c_cpufreq_transition(struct notifier_block *nb,
 
 	if ((val == CPUFREQ_POSTCHANGE && delta_f < 0) ||
 	    (val == CPUFREQ_PRECHANGE && delta_f > 0)) {
-		i2c_lock_adapter(&i2c->adap);
+		i2c_lock_bus(&i2c->adap, I2C_LOCK_ROOT_ADAPTER);
 		ret = s3c24xx_i2c_clockrate(i2c, &got);
-		i2c_unlock_adapter(&i2c->adap);
+		i2c_unlock_bus(&i2c->adap, I2C_LOCK_ROOT_ADAPTER);
 
 		if (ret < 0)
 			dev_err(i2c->dev, "cannot find frequency (%d)\n", ret);
diff --git a/drivers/i2c/busses/i2c-sprd.c b/drivers/i2c/busses/i2c-sprd.c
index 4053259bccb8..a94e724f51dc 100644
--- a/drivers/i2c/busses/i2c-sprd.c
+++ b/drivers/i2c/busses/i2c-sprd.c
@@ -590,9 +590,9 @@ static int __maybe_unused sprd_i2c_suspend_noirq(struct device *pdev)
 {
 	struct sprd_i2c *i2c_dev = dev_get_drvdata(pdev);
 
-	i2c_lock_adapter(&i2c_dev->adap);
+	i2c_lock_bus(&i2c_dev->adap, I2C_LOCK_ROOT_ADAPTER);
 	i2c_dev->is_suspended = true;
-	i2c_unlock_adapter(&i2c_dev->adap);
+	i2c_unlock_bus(&i2c_dev->adap, I2C_LOCK_ROOT_ADAPTER);
 
 	return pm_runtime_force_suspend(pdev);
 }
@@ -601,9 +601,9 @@ static int __maybe_unused sprd_i2c_resume_noirq(struct device *pdev)
 {
 	struct sprd_i2c *i2c_dev = dev_get_drvdata(pdev);
 
-	i2c_lock_adapter(&i2c_dev->adap);
+	i2c_lock_bus(&i2c_dev->adap, I2C_LOCK_ROOT_ADAPTER);
 	i2c_dev->is_suspended = false;
-	i2c_unlock_adapter(&i2c_dev->adap);
+	i2c_unlock_bus(&i2c_dev->adap, I2C_LOCK_ROOT_ADAPTER);
 
 	return pm_runtime_force_resume(pdev);
 }
diff --git a/drivers/i2c/i2c-core-slave.c b/drivers/i2c/i2c-core-slave.c
index 4a78c65e9971..47a9f70a24a9 100644
--- a/drivers/i2c/i2c-core-slave.c
+++ b/drivers/i2c/i2c-core-slave.c
@@ -47,9 +47,9 @@ int i2c_slave_register(struct i2c_client *client, i2c_slave_cb_t slave_cb)
 
 	client->slave_cb = slave_cb;
 
-	i2c_lock_adapter(client->adapter);
+	i2c_lock_bus(client->adapter, I2C_LOCK_ROOT_ADAPTER);
 	ret = client->adapter->algo->reg_slave(client);
-	i2c_unlock_adapter(client->adapter);
+	i2c_unlock_bus(client->adapter, I2C_LOCK_ROOT_ADAPTER);
 
 	if (ret) {
 		client->slave_cb = NULL;
@@ -69,9 +69,9 @@ int i2c_slave_unregister(struct i2c_client *client)
 		return -EOPNOTSUPP;
 	}
 
-	i2c_lock_adapter(client->adapter);
+	i2c_lock_bus(client->adapter, I2C_LOCK_ROOT_ADAPTER);
 	ret = client->adapter->algo->unreg_slave(client);
-	i2c_unlock_adapter(client->adapter);
+	i2c_unlock_bus(client->adapter, I2C_LOCK_ROOT_ADAPTER);
 
 	if (ret == 0)
 		client->slave_cb = NULL;
diff --git a/drivers/iio/temperature/mlx90614.c b/drivers/iio/temperature/mlx90614.c
index d619e8634a00..13a4cec64ea8 100644
--- a/drivers/iio/temperature/mlx90614.c
+++ b/drivers/iio/temperature/mlx90614.c
@@ -433,11 +433,11 @@ static int mlx90614_wakeup(struct mlx90614_data *data)
 
 	dev_dbg(&data->client->dev, "Requesting wake-up");
 
-	i2c_lock_adapter(data->client->adapter);
+	i2c_lock_bus(data->client->adapter, I2C_LOCK_ROOT_ADAPTER);
 	gpiod_direction_output(data->wakeup_gpio, 0);
 	msleep(MLX90614_TIMING_WAKEUP);
 	gpiod_direction_input(data->wakeup_gpio);
-	i2c_unlock_adapter(data->client->adapter);
+	i2c_unlock_bus(data->client->adapter, I2C_LOCK_ROOT_ADAPTER);
 
 	data->ready_timestamp = jiffies +
 			msecs_to_jiffies(MLX90614_TIMING_STARTUP);
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 254cd34eeae2..795e3a860afe 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -754,18 +754,6 @@ i2c_unlock_bus(struct i2c_adapter *adapter, unsigned int flags)
 	adapter->lock_ops->unlock_bus(adapter, flags);
 }
 
-static inline void
-i2c_lock_adapter(struct i2c_adapter *adapter)
-{
-	i2c_lock_bus(adapter, I2C_LOCK_ROOT_ADAPTER);
-}
-
-static inline void
-i2c_unlock_adapter(struct i2c_adapter *adapter)
-{
-	i2c_unlock_bus(adapter, I2C_LOCK_ROOT_ADAPTER);
-}
-
 /*flags for the client struct: */
 #define I2C_CLIENT_PEC		0x04	/* Use Packet Error Checking */
 #define I2C_CLIENT_TEN		0x10	/* we have a ten bit chip address */