From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753221AbZGOHiM (ORCPT ); Wed, 15 Jul 2009 03:38:12 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753189AbZGOHiH (ORCPT ); Wed, 15 Jul 2009 03:38:07 -0400 Received: from mga01.intel.com ([192.55.52.88]:20797 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753156AbZGOHiF (ORCPT ); Wed, 15 Jul 2009 03:38:05 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.42,403,1243839600"; d="scan'208";a="474968531" Subject: [PATCH 8/8] i8042: support device async suspend & shutdown From: Zhang Rui To: Linux Kernel Mailing List , linux-pm , linux-acpi Cc: Len Brown , Pavel Machek , "Rafael J. Wysocki" , "Van De Ven, Arjan" , "Zhang, Rui" Content-Type: text/plain Date: Wed, 15 Jul 2009 15:38:42 +0800 Message-Id: <1247643522.26272.83.camel@rzhang-dt> Mime-Version: 1.0 X-Mailer: Evolution 2.22.1 (2.22.1-2.fc9) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org i8042 controller support device async actions. If boot option "dev_async_action" is added, i8042 controller and its child devices can be suspended/resumed/shutdown asynchronously. Signed-off-by: Zhang Rui --- 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 @@ -1284,14 +1284,21 @@ 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: @@ -1304,6 +1311,7 @@ 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();