linux-kernel - [PATCH V2 4/4] i8042: support async suspend and shutdown

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1248404532.2670.112.camel@rzhang-dt>
Date:	Fri, 24 Jul 2009 11:02:12 +0800
From:	Zhang Rui <rui.zhang@...el.com>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-pm <linux-pm@...ts.linux-foundation.org>,
	linux-acpi <linux-acpi@...r.kernel.org>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>, Pavel Machek <pavel@....cz>,
	Len Brown <lenb@...nel.org>,
	Alan Stern <stern@...land.harvard.edu>,
	Arjan van de Ven <arjan@...ux.intel.com>, dtor@...l.ru,
	"Zhang, Rui" <rui.zhang@...el.com>
Subject: [PATCH V2 4/4] i8042: support async suspend and shutdown


i8042 controller support device async actions.

If boot option "dev_async_action" is added,
i8042 controller and its child devices can be
suspended/shutdown asynchronously.

Signed-off-by: Zhang Rui <rui.zhang@...el.com>
---
 drivers/input/serio/i8042.c |   10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

Index: linux-2.6/drivers/input/serio/i8042.c
===================================================================
--- linux-2.6.orig/drivers/input/serio/i8042.c
+++ linux-2.6/drivers/input/serio/i8042.c
@@ -1285,14 +1285,21 @@ static int __init i8042_init(void)
 		goto err_unregister_driver;
 	}
 
-	err = platform_device_add(i8042_platform_device);
+	err = dev_async_register(&i8042_platform_device->dev,
+			DEV_ASYNC_SUSPEND | DEV_ASYNC_SHUTDOWN);
 	if (err)
 		goto err_free_device;
 
+	err = platform_device_add(i8042_platform_device);
+	if (err)
+		goto err_dev_async_unregister;
+
 	panic_blink = i8042_panic_blink;
 
 	return 0;
 
+ err_dev_async_unregister:
+	dev_async_unregister(&i8042_platform_device->dev);
  err_free_device:
 	platform_device_put(i8042_platform_device);
  err_unregister_driver:
@@ -1305,6 +1312,7 @@ static int __init i8042_init(void)
 
 static void __exit i8042_exit(void)
 {
+	dev_async_unregister(&i8042_platform_device->dev);
 	platform_device_unregister(i8042_platform_device);
 	platform_driver_unregister(&i8042_driver);
 	i8042_platform_exit();


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/