From patchwork Wed Nov 7 00:57:59 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Ying" X-Patchwork-Id: 197608 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 60E832C008D for ; Wed, 7 Nov 2012 11:58:35 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753129Ab2KGA6T (ORCPT ); Tue, 6 Nov 2012 19:58:19 -0500 Received: from mga09.intel.com ([134.134.136.24]:16148 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752619Ab2KGA6T (ORCPT ); Tue, 6 Nov 2012 19:58:19 -0500 Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga102.jf.intel.com with ESMTP; 06 Nov 2012 16:57:30 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.80,725,1344236400"; d="scan'208";a="238257900" Received: from yhuang-dev.sh.intel.com ([10.239.13.178]) by orsmga002.jf.intel.com with ESMTP; 06 Nov 2012 16:58:02 -0800 From: Huang Ying To: Bjorn Helgaas , "Rafael J. Wysocki" Cc: linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, linux-acpi@vger.kernel.org, Huang Ying Subject: [PATCH -v2] ACPI/PCI: Make PCI devices notified when its power resource turned on Date: Wed, 7 Nov 2012 08:57:59 +0800 Message-Id: <1352249879-11406-1-git-send-email-ying.huang@intel.com> X-Mailer: git-send-email 1.7.10.4 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org A set of power resources may be shared by multiple devices. When all devices share one set of power resources is put into D3_COLD state, the power resources will be turned off. When one of the device is waked, the power resource will be turned on and all devices share it will be powered on to D0uninitialized state. These devices should be resumed, so that they can get opportunity to go to low power state later. v2: - Fix build error Signed-off-by: Huang Ying Acked-by: Rafael J. Wysocki Cc: Bjorn Helgaas --- drivers/acpi/pci_bind.c | 2 ++ 1 file changed, 2 insertions(+) -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html --- a/drivers/acpi/pci_bind.c +++ b/drivers/acpi/pci_bind.c @@ -45,6 +45,7 @@ static int acpi_pci_unbind(struct acpi_d device_set_run_wake(&dev->dev, false); pci_acpi_remove_pm_notifier(device); + acpi_power_resource_unregister_device(&dev->dev, device->handle); if (!dev->subordinate) goto out; @@ -71,6 +72,7 @@ static int acpi_pci_bind(struct acpi_dev return 0; pci_acpi_add_pm_notifier(device, dev); + acpi_power_resource_register_device(&dev->dev, device->handle); if (device->wakeup.flags.run_wake) device_set_run_wake(&dev->dev, true);