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| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-25 11:28:00 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-25 11:28:00 -0700 |
| commit | a4fb2122f1fc4a22bd6a5b8a195b952c2d31c54d (patch) | |
| tree | db24e2160fe8eb8d787ad67bd3e08d3284806330 /drivers/pci/pci-acpi.c | |
| parent | bc72450aebe73587f80bbae8fc0b62c3d81b85fe (diff) | |
| parent | 323ef30af3a0da47cc761b04b262d98d0fe79126 (diff) | |
| download | linux-3.10-a4fb2122f1fc4a22bd6a5b8a195b952c2d31c54d.tar.gz linux-3.10-a4fb2122f1fc4a22bd6a5b8a195b952c2d31c54d.tar.bz2 linux-3.10-a4fb2122f1fc4a22bd6a5b8a195b952c2d31c54d.zip | |
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
ACPI: Kconfig: remove CONFIG_ACPI_SLEEP from source
ACPI: quiet ACPI Exceptions due to no _PTC or _TSS
ACPI: Remove references to ACPI_STATE_S2 from acpi_pm_enter
ACPI: Kconfig: always enable CONFIG_ACPI_SLEEP on X86
ACPI: Kconfig: fold /proc/acpi/sleep under CONFIG_ACPI_PROCFS
ACPI: Kconfig: CONFIG_ACPI_PROCFS now defaults to N
ACPI: autoload modules - Create __mod_acpi_device_table symbol for all ACPI drivers
ACPI: autoload modules - Create ACPI alias interface
ACPI: autoload modules - ACPICA modifications
ACPI: asus-laptop: Fix failure exits
ACPI: fix oops due to typo in new throttling code
ACPI: ignore _PSx method for hotplugable PCI devices
ACPI: Use ACPI methods to select PCI device suspend state
ACPI, PNP: hook ACPI D-state to PNP suspend/resume
ACPI: Add acpi_pm_device_sleep_state helper routine
ACPI: Implement the set_target() callback from pm_ops
Diffstat (limited to 'drivers/pci/pci-acpi.c')
| -rw-r--r-- | drivers/pci/pci-acpi.c | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index c8062494009..67c63d1f158 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -245,16 +245,33 @@ EXPORT_SYMBOL(pci_osc_control_set); * currently we simply return _SxD, if present. */ -static int acpi_pci_choose_state(struct pci_dev *pdev, pm_message_t state) +static pci_power_t acpi_pci_choose_state(struct pci_dev *pdev, + pm_message_t state) { - /* TBD */ - - return -ENODEV; + int acpi_state; + + acpi_state = acpi_pm_device_sleep_state(&pdev->dev, + device_may_wakeup(&pdev->dev), NULL); + if (acpi_state < 0) + return PCI_POWER_ERROR; + + switch (acpi_state) { + case ACPI_STATE_D0: + return PCI_D0; + case ACPI_STATE_D1: + return PCI_D1; + case ACPI_STATE_D2: + return PCI_D2; + case ACPI_STATE_D3: + return PCI_D3hot; + } + return PCI_POWER_ERROR; } static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state) { acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev); + acpi_handle tmp; static int state_conv[] = { [0] = 0, [1] = 1, @@ -266,6 +283,9 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state) if (!handle) return -ENODEV; + /* If the ACPI device has _EJ0, ignore the device */ + if (ACPI_SUCCESS(acpi_get_handle(handle, "_EJ0", &tmp))) + return 0; return acpi_bus_set_power(handle, acpi_state); } |