3 files changed, 14 insertions, 8 deletions
diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c
index 757623bacfd5..3f98e587b3e8 100644
--- a/drivers/char/tpm/tpm_tis_core.c
+++ b/drivers/char/tpm/tpm_tis_core.c
@@ -682,15 +682,19 @@ static bool tpm_tis_req_canceled(struct tpm_chip *chip, u8 status)
 {
 	struct tpm_tis_data *priv = dev_get_drvdata(&chip->dev);
 
-	switch (priv->manufacturer_id) {
-	case TPM_VID_WINBOND:
-		return ((status == TPM_STS_VALID) ||
-			(status == (TPM_STS_VALID | TPM_STS_COMMAND_READY)));
-	case TPM_VID_STM:
-		return (status == (TPM_STS_VALID | TPM_STS_COMMAND_READY));
-	default:
-		return (status == TPM_STS_COMMAND_READY);
+	if (!test_bit(TPM_TIS_DEFAULT_CANCELLATION, &priv->flags)) {
+		switch (priv->manufacturer_id) {
+		case TPM_VID_WINBOND:
+			return ((status == TPM_STS_VALID) ||
+				(status == (TPM_STS_VALID | TPM_STS_COMMAND_READY)));
+		case TPM_VID_STM:
+			return (status == (TPM_STS_VALID | TPM_STS_COMMAND_READY));
+		default:
+			break;
+		}
 	}
+
+	return status == TPM_STS_COMMAND_READY;
 }
 
 static irqreturn_t tis_int_handler(int dummy, void *dev_id)
diff --git a/drivers/char/tpm/tpm_tis_core.h b/drivers/char/tpm/tpm_tis_core.h
index 66a5a13cd1df..b68479e0de10 100644
--- a/drivers/char/tpm/tpm_tis_core.h
+++ b/drivers/char/tpm/tpm_tis_core.h
@@ -86,6 +86,7 @@ enum tis_defaults {
 enum tpm_tis_flags {
 	TPM_TIS_ITPM_WORKAROUND		= BIT(0),
 	TPM_TIS_INVALID_STATUS		= BIT(1),
+	TPM_TIS_DEFAULT_CANCELLATION	= BIT(2),
 };
 
 struct tpm_tis_data {
diff --git a/drivers/char/tpm/tpm_tis_i2c.c b/drivers/char/tpm/tpm_tis_i2c.c
index 635a69dfcbbd..f3a7251c8e38 100644
--- a/drivers/char/tpm/tpm_tis_i2c.c
+++ b/drivers/char/tpm/tpm_tis_i2c.c
@@ -329,6 +329,7 @@ static int tpm_tis_i2c_probe(struct i2c_client *dev,
 	if (!phy->io_buf)
 		return -ENOMEM;
 
+	set_bit(TPM_TIS_DEFAULT_CANCELLATION, &phy->priv.flags);
 	phy->i2c_client = dev;
 
 	/* must precede all communication with the tpm */