linux-kernel - [PATCH v5 1/2] ACPI: Add stubs for wakeup handler functions

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Message-ID: <20211028144541.12617-1-mario.limonciello@amd.com>
Date:   Thu, 28 Oct 2021 09:45:40 -0500
From:   Mario Limonciello <mario.limonciello@....com>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Basavaraj Natikar <Basavaraj.Natikar@....com>,
        Shyam Sundar S K <Shyam-sundar.S-k@....com>
CC:     "open list:PIN CONTROL SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        <linux-acpi@...r.kernel.org>,
        Nehal Shah <Nehal-bakulchandra.Shah@....com>,
        Mario Limonciello <mario.limonciello@....com>,
        <stable@...nel.org>,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>
Subject: [PATCH v5 1/2] ACPI: Add stubs for wakeup handler functions

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.

Cc: stable@...nel.org
Fixes: ddfd9dcf270c ("ACPI: PM: Add acpi_[un]register_wakeup_handler()")
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Signed-off-by: Mario Limonciello <mario.limonciello@....com>
---
Changes from v4->v5:
 * Pick up Rafael's tag
 * Target to stable as well
Changes from v3->v4:
 * Reword commit message
 * Adjust whitespace
 * Return -ENXIO instead of -EINVAL
 include/linux/acpi.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 72e4f7fd268c..e29b4c1da377 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
-- 
2.25.1