From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lin Ming Subject: [PATCH v6 06/11] libata-acpi: register/unregister device to/from power resource Date: Mon, 25 Jun 2012 16:13:07 +0800 Message-ID: <1340611992-41457-7-git-send-email-ming.m.lin@intel.com> References: <1340611992-41457-1-git-send-email-ming.m.lin@intel.com> Return-path: In-Reply-To: <1340611992-41457-1-git-send-email-ming.m.lin@intel.com> Sender: linux-kernel-owner@vger.kernel.org To: Jeff Garzik , Aaron Lu , Holger Macht , Matthew Garrett , Alan Cox , David Woodhouse , Dan Williams Cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-scsi@vger.kernel.org, linux-ide@vger.kernel.org, linux-acpi@vger.kernel.org List-Id: linux-ide@vger.kernel.org Signed-off-by: Lin Ming --- drivers/acpi/power.c | 2 ++ drivers/ata/libata-acpi.c | 32 ++++++++++++++++++++++++++++++++ 2 files changed, 34 insertions(+) diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index dd6d6a3..eb640874 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -390,6 +390,7 @@ void acpi_power_resource_unregister_device(struct device *dev, acpi_handle handl __acpi_power_resource_unregister_device(dev, list->handles[i]); } +EXPORT_SYMBOL_GPL(acpi_power_resource_unregister_device); static int __acpi_power_resource_register_device( struct acpi_power_managed_device *powered_device, acpi_handle handle) @@ -460,6 +461,7 @@ int acpi_power_resource_register_device(struct device *dev, acpi_handle handle) printk(KERN_WARNING PREFIX "Invalid Power Resource to register!"); return -ENODEV; } +EXPORT_SYMBOL_GPL(acpi_power_resource_register_device); /** * acpi_device_sleep_wake - execute _DSW (Device Sleep Wake) or (deprecated in diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index e01807a..f36284e 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -1025,14 +1025,46 @@ static void ata_acpi_remove_pm_notifier(struct ata_device *dev) } } +static void ata_acpi_register_power_resource(struct ata_device *dev) +{ + struct scsi_device *sdev = dev->sdev; + acpi_handle handle; + struct device *device; + + handle = ata_dev_acpi_handle(dev); + if (!handle) + return; + + device = &sdev->sdev_gendev; + + acpi_power_resource_register_device(device, handle); +} + +static void ata_acpi_unregister_power_resource(struct ata_device *dev) +{ + struct scsi_device *sdev = dev->sdev; + acpi_handle handle; + struct device *device; + + handle = ata_dev_acpi_handle(dev); + if (!handle) + return; + + device = &sdev->sdev_gendev; + + acpi_power_resource_unregister_device(device, handle); +} + void ata_acpi_bind(struct ata_device *dev) { ata_acpi_add_pm_notifier(dev); + ata_acpi_register_power_resource(dev); } void ata_acpi_unbind(struct ata_device *dev) { ata_acpi_remove_pm_notifier(dev); + ata_acpi_unregister_power_resource(dev); } static int compat_pci_ata(struct ata_port *ap) -- 1.7.10