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author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-25 11:28:00 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-25 11:28:00 -0700 |
commit | a4fb2122f1fc4a22bd6a5b8a195b952c2d31c54d (patch) | |
tree | db24e2160fe8eb8d787ad67bd3e08d3284806330 /drivers/pci | |
parent | bc72450aebe73587f80bbae8fc0b62c3d81b85fe (diff) | |
parent | 323ef30af3a0da47cc761b04b262d98d0fe79126 (diff) | |
download | linux-a4fb2122f1fc4a22bd6a5b8a195b952c2d31c54d.tar.gz linux-a4fb2122f1fc4a22bd6a5b8a195b952c2d31c54d.tar.bz2 linux-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')
-rw-r--r-- | drivers/pci/pci-acpi.c | 28 | ||||
-rw-r--r-- | drivers/pci/pci.c | 8 | ||||
-rw-r--r-- | drivers/pci/pci.h | 2 |
3 files changed, 29 insertions, 9 deletions
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index c8062494009f..67c63d1f1582 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); } diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index c95485398687..fba319d6fcc8 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -499,7 +499,7 @@ pci_set_power_state(struct pci_dev *dev, pci_power_t state) return 0; } -int (*platform_pci_choose_state)(struct pci_dev *dev, pm_message_t state); +pci_power_t (*platform_pci_choose_state)(struct pci_dev *dev, pm_message_t state); /** * pci_choose_state - Choose the power state of a PCI device @@ -513,15 +513,15 @@ int (*platform_pci_choose_state)(struct pci_dev *dev, pm_message_t state); pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state) { - int ret; + pci_power_t ret; if (!pci_find_capability(dev, PCI_CAP_ID_PM)) return PCI_D0; if (platform_pci_choose_state) { ret = platform_pci_choose_state(dev, state); - if (ret >= 0) - state.event = ret; + if (ret != PCI_POWER_ERROR) + return ret; } switch (state.event) { diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 7b696cd66dc5..c6e132d7c0f7 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -12,7 +12,7 @@ extern int pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res, resource_size_t, resource_size_t), void *alignf_data); /* Firmware callbacks */ -extern int (*platform_pci_choose_state)(struct pci_dev *dev, pm_message_t state); +extern pci_power_t (*platform_pci_choose_state)(struct pci_dev *dev, pm_message_t state); extern int (*platform_pci_set_power_state)(struct pci_dev *dev, pci_power_t state); extern int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val); |