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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-07-24 03:18:53 +0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-07-24 03:18:53 +0400
commit85dbb3d05ec6d063f6f8ad4d6dfc13793d566374 (patch)
treef1e8512350cf5a371e475f76673fc7cd67d211ba /drivers/pci
parent9a3c4145af32125c5ee39c0272662b47307a8323 (diff)
downloadlinux-85dbb3d05ec6d063f6f8ad4d6dfc13793d566374.tar.xz
ACPI / PCI: Use ACPI_COMPANION() instead of ACPI_HANDLE()
The ACPI_HANDLE() macro evaluates ACPI_COMPANION() internally to return the handle of the device's ACPI companion, so it is much more straightforward and efficient to use ACPI_COMPANION() directly to obtain the device's ACPI companion object instead of using ACPI_HANDLE() and acpi_bus_get_device() on the returned handle for the same thing. Use ACPI_COMPANION() instead of ACPI_HANDLE() in the PCI ACPI support code. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/pci-acpi.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index ca4927ba8433..740efa8be969 100644
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -170,14 +170,13 @@ static pci_power_t acpi_pci_choose_state(struct pci_dev *pdev)
static bool acpi_pci_power_manageable(struct pci_dev *dev)
{
- acpi_handle handle = ACPI_HANDLE(&dev->dev);
-
- return handle ? acpi_bus_power_manageable(handle) : false;
+ struct acpi_device *adev = ACPI_COMPANION(&dev->dev);
+ return adev ? acpi_device_power_manageable(adev) : false;
}
static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
{
- acpi_handle handle = ACPI_HANDLE(&dev->dev);
+ struct acpi_device *adev = ACPI_COMPANION(&dev->dev);
static const u8 state_conv[] = {
[PCI_D0] = ACPI_STATE_D0,
[PCI_D1] = ACPI_STATE_D1,
@@ -188,7 +187,7 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
int error = -EINVAL;
/* If the ACPI device has _EJ0, ignore the device */
- if (!handle || acpi_has_method(handle, "_EJ0"))
+ if (!adev || acpi_has_method(adev->handle, "_EJ0"))
return -ENODEV;
switch (state) {
@@ -202,7 +201,7 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
case PCI_D1:
case PCI_D2:
case PCI_D3hot:
- error = acpi_bus_set_power(handle, state_conv[state]);
+ error = acpi_device_set_power(adev, state_conv[state]);
}
if (!error)
@@ -214,9 +213,8 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
static bool acpi_pci_can_wakeup(struct pci_dev *dev)
{
- acpi_handle handle = ACPI_HANDLE(&dev->dev);
-
- return handle ? acpi_bus_can_wakeup(handle) : false;
+ struct acpi_device *adev = ACPI_COMPANION(&dev->dev);
+ return adev ? acpi_device_can_wakeup(adev) : false;
}
static void acpi_pci_propagate_wakeup_enable(struct pci_bus *bus, bool enable)