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authorDavid Shaohua Li <shaohua.li@intel.com>2005-03-19 00:16:18 -0500
committerLen Brown <len.brown@intel.com>2005-07-11 23:47:06 -0400
commitb913100d7304ea9596d8d85ab5f3ae04bd2b0ddb (patch)
tree270925a02dd83264fd5bd3a47fc39453798c39d5 /drivers/pci/pci-acpi.c
parent0f64474b8f7f1f7f3af5b24ef997baa35f923509 (diff)
downloadop-kernel-dev-b913100d7304ea9596d8d85ab5f3ae04bd2b0ddb.zip
op-kernel-dev-b913100d7304ea9596d8d85ab5f3ae04bd2b0ddb.tar.gz
[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.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index 8eb5997..a0d43ea 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);
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