The interrupts initially works on the device but they will stop arriving
after about 200 interrupts.
On system reboot/shutdown this will cause a long wait (120000 jiffies).
The interrupts on this device got enabled by commit
e644b2f498d2 ("tpm, tpm_tis: Enable interrupt test")
Prior to this point the interrupts were not enabled on this machine.
Complements: e644b2f498d2 ("tpm, tpm_tis: Enable interrupt test")
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxxxxxxxxxxx>
---
Hi,
This patch applies on top of mainline since 6.4-rc1 takes about 2 minutes to
reboot on this machine, linux-next have
e7d3e5c4b1dd tpm/tpm_tis: Disable interrupts for more Lenovo devices
I'm not sure if I shouold send this on top of next or mainline is fine, please
let me know the preferred way to get this to 6.4.
Regards,
Peter
drivers/char/tpm/tpm_tis.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index 7af389806643..aad682c2ab21 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -122,6 +122,13 @@ static const struct dmi_system_id tpm_tis_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T490s"),
},
},
+ {
+ .callback = tpm_tis_disable_irq,
+ .ident = "UPX-TGL",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "AAEON"),
+ },
+ },
{}
};
--
2.40.1
