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| author | David Shaohua Li <shaohua.li@intel.com> | 2005-03-19 06:16:18 +0100 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2005-07-12 05:47:06 +0200 |
| commit | b913100d7304ea9596d8d85ab5f3ae04bd2b0ddb (patch) | |
| tree | 270925a02dd83264fd5bd3a47fc39453798c39d5 /drivers/pci/pci-acpi.c | |
| parent | [ACPI] PCI can now get suspend state from firmware (diff) | |
| download | linux-b913100d7304ea9596d8d85ab5f3ae04bd2b0ddb.tar.xz linux-b913100d7304ea9596d8d85ab5f3ae04bd2b0ddb.zip | |
[ACPI] pci_set_power_state() now calls
platform_pci_set_power_state()
and ACPI can answer
http://bugzilla.kernel.org/show_bug.cgi?id=4277
Signed-off-by: David Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/pci/pci-acpi.c')
| -rw-r--r-- | drivers/pci/pci-acpi.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index 8eb599708de8..a0d43ea872df 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -253,6 +253,24 @@ static int acpi_pci_choose_state(struct pci_dev *pdev, pm_message_t state) return -ENODEV; } +static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state) +{ + acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev); + static int state_conv[] = { + [0] = 0, + [1] = 1, + [2] = 2, + [3] = 3, + [4] = 3 + }; + int acpi_state = state_conv[(int __force) state]; + + if (!handle) + return -ENODEV; + return acpi_bus_set_power(handle, acpi_state); +} + + /* ACPI bus type */ static int pci_acpi_find_device(struct device *dev, acpi_handle *handle) { @@ -300,6 +318,7 @@ static int __init pci_acpi_init(void) if (ret) return 0; platform_pci_choose_state = acpi_pci_choose_state; + platform_pci_set_power_state = acpi_pci_set_power_state; return 0; } arch_initcall(pci_acpi_init); |