diff options
| author | Jonathan McDowell <noodles@meta.com> | 2023-08-04 17:08:40 +0000 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko@kernel.org> | 2023-08-07 18:01:01 +0000 |
| commit | e117e7adc637e364b599dc766f1d740698e7e027 (patch) | |
| tree | 44a399818dbf3b728faeb73b1ae8ff12c793cf3e /drivers/char | |
| parent | 554b841d470338a3b1d6335b14ee1cd0c8f5d754 (diff) | |
tpm/tpm_tis: Disable interrupts for Lenovo P620 devices
The Lenovo ThinkStation P620 suffers from an irq storm issue like various
other Lenovo machines, so add an entry for it to tpm_tis_dmi_table and
force polling.
It is worth noting that 481c2d14627d (tpm,tpm_tis: Disable interrupts after
1000 unhandled IRQs) does not seem to fix the problem on this machine, but
setting 'tpm_tis.interrupts=0' on the kernel command line does.
[jarkko@kernel.org: truncated the commit ID in the description to 12
characters]
Cc: stable@vger.kernel.org # v6.4+
Fixes: e644b2f498d2 ("tpm, tpm_tis: Enable interrupt test")
Signed-off-by: Jonathan McDowell <noodles@meta.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/tpm/tpm_tis.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c index a98773ac2e55..ac4daaf294a3 100644 --- a/drivers/char/tpm/tpm_tis.c +++ b/drivers/char/tpm/tpm_tis.c @@ -164,6 +164,14 @@ static const struct dmi_system_id tpm_tis_dmi_table[] = { }, { .callback = tpm_tis_disable_irq, + .ident = "ThinkStation P620", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkStation P620"), + }, + }, + { + .callback = tpm_tis_disable_irq, .ident = "TUXEDO InfinityBook S 15/17 Gen7", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "TUXEDO"), |