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Subject[RFC PATCH v2 6/8] libata-acpi: register/unregister device to/from power resource
Date
Uses the interface introduced in earlier patch.

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
---
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)
--
1.7.2.5


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