This is a note to let you know that I've just added the patch titled
usb: ucsi_acpi: Increase the command completion timeout
to the 6.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-ucsi_acpi-increase-the-command-completion-timeout.patch
and it can be found in the queue-6.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 02d210f434249a7edbc160969b75df030dc6934d Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@xxxxxxxxxx>
Date: Wed, 8 Mar 2023 16:42:44 +0100
Subject: usb: ucsi_acpi: Increase the command completion timeout
From: Hans de Goede <hdegoede@xxxxxxxxxx>
commit 02d210f434249a7edbc160969b75df030dc6934d upstream.
Commit 130a96d698d7 ("usb: typec: ucsi: acpi: Increase command
completion timeout value") increased the timeout from 5 seconds
to 60 seconds due to issues related to alternate mode discovery.
After the alternate mode discovery switch to polled mode
the timeout was reduced, but instead of being set back to
5 seconds it was reduced to 1 second.
This is causing problems when using a Lenovo ThinkPad X1 yoga gen7
connected over Type-C to a LG 27UL850-W (charging DP over Type-C).
When the monitor is already connected at boot the following error
is logged: "PPM init failed (-110)", /sys/class/typec is empty and
on unplugging the NULL pointer deref fixed earlier in this series
happens.
When the monitor is connected after boot the following error
is logged instead: "GET_CONNECTOR_STATUS failed (-110)".
Setting the timeout back to 5 seconds fixes both cases.
Fixes: e08065069fc7 ("usb: typec: ucsi: acpi: Reduce the command completion timeout")
Cc: stable@xxxxxxxxxxxxxxx
Reviewed-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230308154244.722337-4-hdegoede@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/typec/ucsi/ucsi_acpi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/usb/typec/ucsi/ucsi_acpi.c
+++ b/drivers/usb/typec/ucsi/ucsi_acpi.c
@@ -78,7 +78,7 @@ static int ucsi_acpi_sync_write(struct u
if (ret)
goto out_clear_bit;
- if (!wait_for_completion_timeout(&ua->complete, HZ))
+ if (!wait_for_completion_timeout(&ua->complete, 5 * HZ))
ret = -ETIMEDOUT;
out_clear_bit:
Patches currently in stable-queue which might be from hdegoede@xxxxxxxxxx are
queue-6.2/usb-ucsi_acpi-increase-the-command-completion-timeout.patch
queue-6.2/platform-x86-int3472-add-gpios-to-surface-go-3-board.patch
queue-6.2/usb-ucsi-fix-null-pointer-deref-in-ucsi_connector_change.patch
queue-6.2/efi-sysfb_efi-fix-dmi-quirks-not-working-for-simpledrm.patch
