[PATCH 1/2][SRU][OEM-5.14][U] ACPI: Add stubs for wakeup handler functions

[Alex Hung]

From: Mario Limonciello <mario.limonciello at amd.com>

BugLink: https://bugs.launchpad.net/bugs/1953540

The commit ddfd9dcf270c ("ACPI: PM: Add acpi_[un]register_wakeup_handler()")
added new functions for drivers to use during the s2idle wakeup path, but
didn't add stubs for when CONFIG_ACPI wasn't set.

Add those stubs in for other drivers to be able to use.

Fixes: ddfd9dcf270c ("ACPI: PM: Add acpi_[un]register_wakeup_handler()")
Acked-by: Rafael J. Wysocki <rafael.j.wysocki at intel.com>
Signed-off-by: Mario Limonciello <mario.limonciello at amd.com>
Link: https://lore.kernel.org/r/20211101014853.6177-1-mario.limonciello@amd.com
Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
(cherry picked from commit e9380df851878cee71df5a1c7611584421527f7e)
Signed-off-by: Alex Hung <alex.hung at canonical.com>
---
 include/linux/acpi.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 974d497..6224b1e 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -976,6 +976,15 @@ static inline int acpi_get_local_address(acpi_handle handle, u32 *addr)
 	return -ENODEV;
 }
 
+static inline int acpi_register_wakeup_handler(int wake_irq,
+	bool (*wakeup)(void *context), void *context)
+{
+	return -ENXIO;
+}
+
+static inline void acpi_unregister_wakeup_handler(
+	bool (*wakeup)(void *context), void *context) { }
+
 #endif	/* !CONFIG_ACPI */
 
 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
-- 
2.7.4