PCI: rework pci_set_power_state function to call platform first

[linux-2.6-omap-h63xx.git] / drivers / pci / pci-acpi.c

diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index e4df71ab79b3508df99a1d57c5489966f737c7cc..6bc0d8c870afe1bbc283b873af42abc9388bebac 100644 (file)
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -277,12 +277,11 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
                [PCI_D3hot] = ACPI_STATE_D3,
                [PCI_D3cold] = ACPI_STATE_D3
        };
+       int error = -EINVAL;
 
-       if (!handle)
-               return -ENODEV;
        /* If the ACPI device has _EJ0, ignore the device */
-       if (ACPI_SUCCESS(acpi_get_handle(handle, "_EJ0", &tmp)))
-               return 0;
+       if (!handle || ACPI_SUCCESS(acpi_get_handle(handle, "_EJ0", &tmp)))
+               return -ENODEV;
 
        switch (state) {
        case PCI_D0:
@@ -290,9 +289,14 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
        case PCI_D2:
        case PCI_D3hot:
        case PCI_D3cold:
-               return acpi_bus_set_power(handle, state_conv[state]);
+               error = acpi_bus_set_power(handle, state_conv[state]);
        }
-       return -EINVAL;
+
+       if (!error)
+               dev_printk(KERN_INFO, &dev->dev,
+                               "power state changed by ACPI to D%d\n", state);
+
+       return error;
 }
 
 static struct pci_platform_pm_ops acpi_pci_platform_pm = {