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Subject[PATCH - for 6.4] tpm: tpm_tis: Disable interrupts for AEON UPX-i11
Date
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@linux.intel.com>
---
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
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