From a606dac368eed5696fb38e16b1394f1d049c09e9 Mon Sep 17 00:00:00 2001 From: Lin Ming Date: Mon, 25 Jun 2012 16:13:07 +0800 Subject: libata-acpi: register/unregister device to/from power resource Signed-off-by: Lin Ming Signed-off-by: Jeff Garzik --- drivers/ata/libata-acpi.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) (limited to 'drivers/ata/libata-acpi.c') diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index e01807a1ef31..f36284e3290d 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) -- cgit v1.2.1