diff --git a/drivers/i2c/busses/i2c-stm32f7.c b/drivers/i2c/busses/i2c-stm32f7.c
index 70cb5822bf17..53d9df70ebe4 100644
--- a/drivers/i2c/busses/i2c-stm32f7.c
+++ b/drivers/i2c/busses/i2c-stm32f7.c
@@ -895,8 +895,6 @@ static void stm32f7_i2c_xfer_msg(struct stm32f7_i2c_dev *i2c_dev,
 	f7_msg->result = 0;
 	f7_msg->stop = (i2c_dev->msg_id >= i2c_dev->msg_num - 1);
 
-	reinit_completion(&i2c_dev->complete);
-
 	cr1 = readl_relaxed(base + STM32F7_I2C_CR1);
 	cr2 = readl_relaxed(base + STM32F7_I2C_CR2);
 
@@ -1728,6 +1726,8 @@ static int stm32f7_i2c_xfer_core(struct i2c_adapter *i2c_adap,
 	if (ret)
 		goto pm_free;
 
+	reinit_completion(&i2c_dev->complete);
+
 	stm32f7_i2c_xfer_msg(i2c_dev, msgs);
 
 	if (!i2c_dev->atomic)
@@ -2253,7 +2253,7 @@ static int stm32f7_i2c_probe(struct platform_device *pdev)
 	snprintf(adap->name, sizeof(adap->name), "STM32F7 I2C(%pa)",
 		 &res->start);
 	adap->owner = THIS_MODULE;
-	adap->timeout = 2 * HZ;
+	adap->timeout = 8 * HZ;
 	adap->retries = 3;
 	adap->algo = &stm32f7_i2c_algo;
 	adap->dev.parent = &pdev->dev;