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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2008-07-07 01:32:02 (GMT) |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2008-07-07 23:25:10 (GMT) |
| commit | 961d9120fa6f078492a1c762dd91f2c097e56c83 (patch) | |
| tree | e11955d14d0f777ad5a76b44034f6b3c5281a0bf /drivers/pci/pci-acpi.c | |
| parent | 3737b2b1046900660b42e25c904b85e78139d25b (diff) | |
| download | linux-961d9120fa6f078492a1c762dd91f2c097e56c83.tar.xz | |
PCI: Introduce platform_pci_power_manageable function
Introduce function pointer platform_pci_power_manageable to be used
by the platform-related code to point to a function allowing us to
check if given device is power manageable by the platform.
Introduce acpi_pci_power_manageable() playing that role for ACPI.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci/pci-acpi.c')
| -rw-r--r-- | drivers/pci/pci-acpi.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index 056ea80..e4df71a 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -215,7 +215,6 @@ acpi_status pci_osc_control_set(acpi_handle handle, u32 flags) } EXPORT_SYMBOL(pci_osc_control_set); -#ifdef CONFIG_ACPI_SLEEP /* * _SxD returns the D-state with the highest power * (lowest D-state number) supported in the S-state "x". @@ -259,7 +258,13 @@ static pci_power_t acpi_pci_choose_state(struct pci_dev *pdev) } return PCI_POWER_ERROR; } -#endif + +static bool acpi_pci_power_manageable(struct pci_dev *dev) +{ + acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev); + + return handle ? acpi_bus_power_manageable(handle) : false; +} static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state) { @@ -290,6 +295,11 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state) return -EINVAL; } +static struct pci_platform_pm_ops acpi_pci_platform_pm = { + .is_manageable = acpi_pci_power_manageable, + .set_state = acpi_pci_set_power_state, + .choose_state = acpi_pci_choose_state, +}; /* ACPI bus type */ static int acpi_pci_find_device(struct device *dev, acpi_handle *handle) @@ -341,10 +351,7 @@ static int __init acpi_pci_init(void) ret = register_acpi_bus_type(&acpi_pci_bus); if (ret) return 0; -#ifdef CONFIG_ACPI_SLEEP - platform_pci_choose_state = acpi_pci_choose_state; -#endif - platform_pci_set_power_state = acpi_pci_set_power_state; + pci_set_platform_pm(&acpi_pci_platform_pm); return 0; } arch_initcall(acpi_pci_init); |