diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c
index 8b46aaa9e0492b84eb45b121ed6aabd7e41bef37..d2345d9fd7b51390200375f318179e46bef01568 100644
--- a/drivers/char/tpm/tpm_tis_core.c
+++ b/drivers/char/tpm/tpm_tis_core.c
@@ -875,6 +875,8 @@ int tpm_tis_core_init(struct device *dev, struct tpm_tis_data *priv, int irq,
 	chip->acpi_dev_handle = acpi_dev_handle;
 #endif
 
+	chip->hwrng.quality = priv->rng_quality;
+
 	/* Maximum timeouts */
 	chip->timeout_a = msecs_to_jiffies(TIS_TIMEOUT_A_MAX);
 	chip->timeout_b = msecs_to_jiffies(TIS_TIMEOUT_B_MAX);
diff --git a/drivers/char/tpm/tpm_tis_core.h b/drivers/char/tpm/tpm_tis_core.h
index f6e1dbe212a778c997faa688fe9c21bdcc1e7189..f48125f1e6e06ff34ca7fd37d7fcbbbe9f80e5a6 100644
--- a/drivers/char/tpm/tpm_tis_core.h
+++ b/drivers/char/tpm/tpm_tis_core.h
@@ -99,6 +99,7 @@ struct tpm_tis_data {
 	wait_queue_head_t int_queue;
 	wait_queue_head_t read_queue;
 	const struct tpm_tis_phy_ops *phy_ops;
+	unsigned short rng_quality;
 };
 
 struct tpm_tis_phy_ops {