[PATCH] tpm: Allow tpm_tis drivers to set hwrng quality.

[PATCH] tpm: Allow tpm_tis drivers to set hwrng quality.

[Louis Collard]

Adds plumbing required for drivers based on tpm_tis to set hwrng quality.

Signed-off-by: Louis Collard <louiscollard@chromium.org>
---
 drivers/char/tpm/tpm_tis_core.c | 2 ++
 drivers/char/tpm/tpm_tis_core.h | 1 +
 2 files changed, 3 insertions(+)

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 {
-- 
2.13.5

Re: [PATCH] tpm: Allow tpm_tis drivers to set hwrng quality.

[Jarkko Sakkinen]

On Fri, Jun 08, 2018 at 03:11:46PM +0800, Louis Collard wrote:
> Adds plumbing required for drivers based on tpm_tis to set hwrng quality.
> 
> Signed-off-by: Louis Collard <louiscollard@chromium.org>

NAK because this not connected to the current GIT tree (should probably
make a patch set?).

/Jarkko

Re: [PATCH] tpm: Allow tpm_tis drivers to set hwrng quality.

[Louis Collard]

Hi sorry I'm not sure I understand; I based the change on linux-next
master, let me know if I should be using something else. The change is
not dependent on https://patchwork.kernel.org/patch/10453893/

On Wed, Jun 27, 2018 at 1:28 PM, Louis Collard
<louiscollard@chromium.org> wrote:
> Hi sorry I'm not sure I understand; I based the change on linux-next master,
> let me know if I should be using something else. The change is not dependent
> on https://patchwork.kernel.org/patch/10453893/
>
> On Tue, Jun 19, 2018 at 2:09 AM, Jarkko Sakkinen
> <jarkko.sakkinen@linux.intel.com> wrote:
>>
>> On Fri, Jun 08, 2018 at 03:11:46PM +0800, Louis Collard wrote:
>> > Adds plumbing required for drivers based on tpm_tis to set hwrng
>> > quality.
>> >
>> > Signed-off-by: Louis Collard <louiscollard@chromium.org>
>>
>> NAK because this not connected to the current GIT tree (should probably
>> make a patch set?).
>>
>> /Jarkko
>
>