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authorAaron Lu <aaron.lu@intel.com>2014-03-14 13:46:10 +0800
committerTejun Heo <tj@kernel.org>2014-03-14 11:23:47 -0400
commitd920203695029558ef16925182f89cf6302b50b0 (patch)
tree660f8bb361fcf9d22d194f7c0fce7bf8f9ac90b5 /drivers/ata
parentc75da205e02dda3b79ca057e558f97f3d61c855d (diff)
libata: zpodd: eliminate odd_can_poweroff
Now that we can directly get the ACPI device conterpart of the physical ATA transport device, the odd_can_poweroff can be eliminated. Signed-off-by: Aaron Lu <aaron.lu@intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/ata')
-rw-r--r--drivers/ata/libata-zpodd.c21
1 files changed, 2 insertions, 19 deletions
diff --git a/drivers/ata/libata-zpodd.c b/drivers/ata/libata-zpodd.c
index 88949c6d55dd..f3a65a3140d3 100644
--- a/drivers/ata/libata-zpodd.c
+++ b/drivers/ata/libata-zpodd.c
@@ -85,21 +85,6 @@ static enum odd_mech_type zpodd_get_mech_type(struct ata_device *dev)
return ODD_MECH_TYPE_UNSUPPORTED;
}
-static bool odd_can_poweroff(struct ata_device *ata_dev)
-{
- acpi_handle handle;
- struct acpi_device *acpi_dev;
-
- handle = ata_dev_acpi_handle(ata_dev);
- if (!handle)
- return false;
-
- if (acpi_bus_get_device(handle, &acpi_dev))
- return false;
-
- return acpi_device_can_poweroff(acpi_dev);
-}
-
/* Test if ODD is zero power ready by sense code */
static bool zpready(struct ata_device *dev)
{
@@ -267,13 +252,11 @@ static void ata_acpi_remove_pm_notifier(struct ata_device *dev)
void zpodd_init(struct ata_device *dev)
{
+ struct acpi_device *adev = ACPI_COMPANION(&dev->tdev);
enum odd_mech_type mech_type;
struct zpodd *zpodd;
- if (dev->zpodd)
- return;
-
- if (!odd_can_poweroff(dev))
+ if (dev->zpodd || !adev || !acpi_device_can_poweroff(adev))
return;
mech_type = zpodd_get_mech_type(dev);