1 files changed, 12 insertions, 10 deletions

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 259d247b7551..e74d75843047 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -15,6 +15,7 @@
 #include <linux/pci.h>
 #include <linux/module.h>
 #include <linux/spinlock.h>
+#include <linux/string.h>
 #include <asm/dma.h>    /* isa_dma_bridge_buggy */
 #include "pci.h"
 
@@ -252,6 +253,8 @@ pci_restore_bars(struct pci_dev *dev)
                 pci_update_resource(dev, &dev->resource[i], i);
 }
 
+int (*platform_pci_set_power_state)(struct pci_dev *dev, pci_power_t t);
+
 /**
  * pci_set_power_state - Set the power state of a PCI device
  * @dev: PCI device to be suspended
@@ -266,7 +269,6 @@ pci_restore_bars(struct pci_dev *dev)
  * -EIO if device does not support PCI PM.
  * 0 if we can successfully change the power state.
  */
-int (*platform_pci_set_power_state)(struct pci_dev *dev, pci_power_t t);
 int
 pci_set_power_state(struct pci_dev *dev, pci_power_t state)
 {
@@ -314,19 +316,19 @@ pci_set_power_state(struct pci_dev *dev, pci_power_t state)
          * sets PowerState to 0.
          */
         switch (dev->current_state) {
+        case PCI_D0:
+        case PCI_D1:
+        case PCI_D2:
+                pmcsr &= ~PCI_PM_CTRL_STATE_MASK;
+                pmcsr |= state;
+                break;
         case PCI_UNKNOWN: /* Boot-up */
                 if ((pmcsr & PCI_PM_CTRL_STATE_MASK) == PCI_D3hot
                  && !(pmcsr & PCI_PM_CTRL_NO_SOFT_RESET))
                         need_restore = 1;
                 /* Fall-through: force to D0 */
-        case PCI_D3hot:
-        case PCI_D3cold:
-        case PCI_POWER_ERROR:
-                pmcsr = 0;
-                break;
         default:
-                pmcsr &= ~PCI_PM_CTRL_STATE_MASK;
-                pmcsr |= state;
+                pmcsr = 0;
                 break;
         }
 
@@ -808,8 +810,8 @@ pci_clear_mwi(struct pci_dev *dev)
 
 /**
  * pci_intx - enables/disables PCI INTx for device dev
- * @dev: the PCI device to operate on
- * @enable: boolean
+ * @pdev: the PCI device to operate on
+ * @enable: boolean: whether to enable or disable PCI INTx
  *
  * Enables/disables PCI INTx for device dev
  */