This is a note to let you know that I've just added the patch titled
platform/chrome: cros_ec_lpc: Remove EC panic shutdown timeout
to the 6.5-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:
platform-chrome-cros_ec_lpc-remove-ec-panic-shutdown.patch
and it can be found in the queue-6.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 421b4b968ee5f038f65df467765b3cd796731065
Author: Rob Barnes <robbarnes@xxxxxxxxxx>
Date: Wed Aug 2 17:58:48 2023 +0000
platform/chrome: cros_ec_lpc: Remove EC panic shutdown timeout
[ Upstream commit f2d4dced9a584612b25adb559c1350243d2bb544 ]
Remove the 1 second timeout applied to hw_protection_shutdown after an
EC panic. On some platforms this 1 second timeout is insufficient to
allow the filesystem to fully sync. Independently the EC will force a
full system reset after a short period. So this backup timeout is
unnecessary.
Signed-off-by: Rob Barnes <robbarnes@xxxxxxxxxx>
Reviewed-by: Guenter Roeck <groeck@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230802175847.1.Ie9fc53b6a1f4c6661c5376286a50e0cf51b3e961@changeid
Signed-off-by: Tzung-Bi Shih <tzungbi@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/platform/chrome/cros_ec_lpc.c b/drivers/platform/chrome/cros_ec_lpc.c
index 500a61b093e47..356572452898d 100644
--- a/drivers/platform/chrome/cros_ec_lpc.c
+++ b/drivers/platform/chrome/cros_ec_lpc.c
@@ -327,8 +327,8 @@ static void cros_ec_lpc_acpi_notify(acpi_handle device, u32 value, void *data)
dev_emerg(ec_dev->dev, "CrOS EC Panic Reported. Shutdown is imminent!");
blocking_notifier_call_chain(&ec_dev->panic_notifier, 0, ec_dev);
kobject_uevent_env(&ec_dev->dev->kobj, KOBJ_CHANGE, (char **)env);
- /* Begin orderly shutdown. Force shutdown after 1 second. */
- hw_protection_shutdown("CrOS EC Panic", 1000);
+ /* Begin orderly shutdown. EC will force reset after a short period. */
+ hw_protection_shutdown("CrOS EC Panic", -1);
/* Do not query for other events after a panic is reported */
return;
}
