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

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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@xxxxxxxxx>
---
 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-acpi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux IBM ACPI]     [Linux Power Management]     [Linux Kernel]     [Linux Laptop]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Video 4 Linux]     [Device Mapper]     [Linux Resources]

  Powered by Linux