[RFC PATCH v2 6/8] libata-acpi: register/unregister device to/from power resource
From: Lin Ming <hidden>
Date: 2012-03-01 09:06:47
Also in:
linux-acpi, linux-scsi, lkml
Subsystem:
libata subsystem (serial and parallel ata drivers), the rest · Maintainers:
Damien Le Moal, Niklas Cassel, Linus Torvalds
Uses the interface introduced in earlier patch. Signed-off-by: Lin Ming <redacted> --- drivers/ata/libata-acpi.c | 32 ++++++++++++++++++++++++++++++++ 1 files changed, 32 insertions(+), 0 deletions(-)
diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c
index c2a4db6..ec2a5a4 100644
--- a/drivers/ata/libata-acpi.c
+++ b/drivers/ata/libata-acpi.c@@ -1033,16 +1033,48 @@ 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_bind_dock(dev); ata_acpi_add_pm_notifier(dev); + ata_acpi_register_power_resource(dev); } void ata_acpi_unbind(struct ata_device *dev) { ata_acpi_unbind_dock(dev); ata_acpi_remove_pm_notifier(dev); + ata_acpi_unregister_power_resource(dev); } static int is_pci_ata(struct device *dev)
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1.7.2.5