7 files changed, 20 insertions, 11 deletions
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 8d21b9825d71..fce9f2ca0570 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -202,8 +202,7 @@ config I2C_CHT_WC
 
 	  Note this controller is hooked up to a TI bq24292i charger-IC,
 	  combined with a FUSB302 Type-C port-controller as such it is advised
-	  to also select CONFIG_CHARGER_BQ24190=m and CONFIG_TYPEC_FUSB302=m
-	  (the fusb302 driver currently is in drivers/staging).
+	  to also select CONFIG_TYPEC_FUSB302=m.
 
 config I2C_NFORCE2
 	tristate "Nvidia nForce2, nForce3 and nForce4"
diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c
index fd36c39ddf4e..0cdba29ae0a9 100644
--- a/drivers/i2c/busses/i2c-designware-master.c
+++ b/drivers/i2c/busses/i2c-designware-master.c
@@ -209,7 +209,10 @@ static void i2c_dw_xfer_init(struct dw_i2c_dev *dev)
 	i2c_dw_disable_int(dev);
 
 	/* Enable the adapter */
-	__i2c_dw_enable_and_wait(dev, true);
+	__i2c_dw_enable(dev, true);
+
+	/* Dummy read to avoid the register getting stuck on Bay Trail */
+	dw_readl(dev, DW_IC_ENABLE_STATUS);
 
 	/* Clear and enable interrupts */
 	dw_readl(dev, DW_IC_CLR_INTR);
diff --git a/drivers/i2c/busses/i2c-ocores.c b/drivers/i2c/busses/i2c-ocores.c
index 8c42ca7107b2..45ae3c025bf6 100644
--- a/drivers/i2c/busses/i2c-ocores.c
+++ b/drivers/i2c/busses/i2c-ocores.c
@@ -1,6 +1,6 @@
 /*
  * i2c-ocores.c: I2C bus driver for OpenCores I2C controller
- * (http://www.opencores.org/projects.cgi/web/i2c/overview).
+ * (https://opencores.org/project/i2c/overview)
  *
  * Peter Korsgaard <jacmet@sunsite.dk>
  *
diff --git a/drivers/i2c/busses/i2c-pmcmsp.c b/drivers/i2c/busses/i2c-pmcmsp.c
index 2aa0e83174c5..dae8ac618a52 100644
--- a/drivers/i2c/busses/i2c-pmcmsp.c
+++ b/drivers/i2c/busses/i2c-pmcmsp.c
@@ -564,10 +564,10 @@ static int pmcmsptwi_master_xfer(struct i2c_adapter *adap,
 		 * TODO: We could potentially loop and retry in the case
 		 * of MSP_TWI_XFER_TIMEOUT.
 		 */
-		return -1;
+		return -EIO;
 	}
 
-	return 0;
+	return num;
 }
 
 static u32 pmcmsptwi_i2c_func(struct i2c_adapter *adapter)
diff --git a/drivers/i2c/busses/i2c-viperboard.c b/drivers/i2c/busses/i2c-viperboard.c
index e4be86b3de9a..7235c7302bb7 100644
--- a/drivers/i2c/busses/i2c-viperboard.c
+++ b/drivers/i2c/busses/i2c-viperboard.c
@@ -337,7 +337,7 @@ static int vprbrd_i2c_xfer(struct i2c_adapter *i2c, struct i2c_msg *msgs,
 		}
 		mutex_unlock(&vb->lock);
 	}
-	return 0;
+	return num;
 error:
 	mutex_unlock(&vb->lock);
 	return error;
diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c
index a9126b3cda61..7c3b4740b94b 100644
--- a/drivers/i2c/i2c-core-acpi.c
+++ b/drivers/i2c/i2c-core-acpi.c
@@ -445,10 +445,17 @@ static int acpi_gsb_i2c_read_bytes(struct i2c_client *client,
 	msgs[1].buf = buffer;
 
 	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
-	if (ret < 0)
-		dev_err(&client->adapter->dev, "i2c read failed\n");
-	else
+	if (ret < 0) {
+		/* Getting a NACK is unfortunately normal with some DSTDs */
+		if (ret == -EREMOTEIO)
+			dev_dbg(&client->adapter->dev, "i2c read %d bytes from client@%#x starting at reg %#x failed, error: %d\n",
+				data_len, client->addr, cmd, ret);
+		else
+			dev_err(&client->adapter->dev, "i2c read %d bytes from client@%#x starting at reg %#x failed, error: %d\n",
+				data_len, client->addr, cmd, ret);
+	} else {
 		memcpy(data, buffer, data_len);
+	}
 
 	kfree(buffer);
 	return ret;
diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
index 1ba40bb2b966..a17f46a95f73 100644
--- a/drivers/i2c/i2c-core-base.c
+++ b/drivers/i2c/i2c-core-base.c
@@ -363,7 +363,7 @@ static int i2c_device_probe(struct device *dev)
 		goto err_clear_wakeup_irq;
 
 	status = dev_pm_domain_attach(&client->dev, true);
-	if (status == -EPROBE_DEFER)
+	if (status)
 		goto err_clear_wakeup_irq;
 
 	/*