From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rafael J. Wysocki" Subject: [RFC][PATCH 3/3] PM: Asynchronous suspend and resume for ACPI battery Date: Wed, 12 Aug 2009 22:22:02 +0200 Message-ID: <200908122222.02315.rjw@sisk.pl> References: <200908122218.13975.rjw@sisk.pl> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <200908122218.13975.rjw@sisk.pl> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.linux-foundation.org Errors-To: linux-pm-bounces@lists.linux-foundation.org To: linux-pm Cc: Linux Kernel Mailing List , linux-acpi , Arjan van de Ven List-Id: linux-pm@vger.kernel.org Allow the ACPI battery device to be resumed and suspended asynchronously. This only means that the driver's suspend and resume callbacks may be executed in parallel with the callbacks of devices that don't directly depend on the battery device (i.e. that are not its parent or children). Index: linux-2.6/drivers/acpi/battery.c =================================================================== --- linux-2.6.orig/drivers/acpi/battery.c +++ linux-2.6/drivers/acpi/battery.c @@ -837,6 +837,7 @@ static int acpi_battery_add(struct acpi_ printk(KERN_INFO PREFIX "%s Slot [%s] (battery %s)\n", ACPI_BATTERY_DEVICE_NAME, acpi_device_bid(device), device->status.battery_present ? "present" : "absent"); + device_enable_async_suspend(&device->dev, true); } else { #ifdef CONFIG_ACPI_PROCFS_POWER acpi_battery_remove_fs(device);