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HID: intel-ish-hid: ipc: only enable IRQ wakeup when requested 

commit 086e81f6b90e41a07a1a885bb11e93daa6915747 upstream.

Fixes spurious wakeups from s0ix on Lenovo ThinkPad X1 Cargon Gen 9 on
lid close.

These wakeups are generated by interrupts from the ISH on changes to the
lid status.

By disabling the wake IRQ from the ISH we inhibit these spurious
wakeups while keeping the resume from LID open through the ACPI
interrupt.

Reports on the Lenovo forums indicate that Lenovo ThinkPad X1 Yoga Gen6
is also affected.

Fixes: ae02e5d40d ("HID: intel-ish-hid: ipc layer")
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=214855
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211130060117.3026-1-linux@weissschuh.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Thomas Weißschuh 2021-11-30 07:01:17 +01:00 committed by Greg Kroah-Hartman
parent d38f902392
commit 6892f8e27d
1 changed files with 4 additions and 2 deletions
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6
drivers/hid/intel-ish-hid/ipc/pci-ish.c
View File

@ -266,7 +266,8 @@ static void __maybe_unused ish_resume_handler(struct work_struct *work)
if (ish_should_leave_d0i3(pdev) && !dev->suspend_flag
&& IPC_IS_ISH_ILUP(fwsts)) {
disable_irq_wake(pdev->irq);
if (device_may_wakeup(&pdev->dev))
disable_irq_wake(pdev->irq);
ish_set_host_ready(dev);
@ -337,7 +338,8 @@ static int __maybe_unused ish_suspend(struct device *device)
*/
pci_save_state(pdev);
enable_irq_wake(pdev->irq);
if (device_may_wakeup(&pdev->dev))
enable_irq_wake(pdev->irq);
}
} else {
/*