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authorLouis Collard <louiscollard@chromium.org>2018-06-29 11:13:55 +0300
committerJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>2018-07-28 17:03:11 +0300
commit7a64c5597aa40403e9f8319c0664228a5580c121 (patch)
tree304af6b6c11173d9d5fbe338a04a4f4b4ea55691 /drivers/char
parent36a11029b07ee30bdc4553274d0efea645ed9d91 (diff)
downloadlinux-7a64c5597aa40403e9f8319c0664228a5580c121.tar.xz
tpm: Allow tpm_tis drivers to set hwrng quality.
Adds plumbing required for drivers based on tpm_tis to set hwrng quality. Signed-off-by: Louis Collard <louiscollard@chromium.org> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/tpm/tpm_tis_core.c2
-rw-r--r--drivers/char/tpm/tpm_tis_core.h1
2 files changed, 3 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c
index 8b46aaa9e049..d2345d9fd7b5 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 f6e1dbe212a7..f48125f1e6e0 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 {