diff options
Diffstat (limited to 'drivers/scsi/hpsa.c')
| -rw-r--r-- | drivers/scsi/hpsa.c | 28 |
1 files changed, 10 insertions, 18 deletions
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 9edacff962a3..371d0a81d535 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -5689,30 +5689,22 @@ static int hpsa_controller_hard_reset(struct pci_dev *pdev, * the controller, place the interface device in D3 then to D0, * this causes a secondary PCI reset which will reset the * controller." */ - int pos; - u16 pmcsr; - - pos = pci_find_capability(pdev, PCI_CAP_ID_PM); - if (pos == 0) { - dev_err(&pdev->dev, - "hpsa_reset_controller: " - "PCI PM not supported\n"); - return -ENODEV; - } + + int rc = 0; + dev_info(&pdev->dev, "using PCI PM to reset controller\n"); + /* enter the D3hot power management state */ - pci_read_config_word(pdev, pos + PCI_PM_CTRL, - (__force u16 *)&pmcsr); - pmcsr &= ~PCI_PM_CTRL_STATE_MASK; - pmcsr |= (__force u16) PCI_D3hot; - pci_write_config_word(pdev, pos + PCI_PM_CTRL, pmcsr); + rc = pci_set_power_state(pdev, PCI_D3hot); + if (rc) + return rc; msleep(500); /* enter the D0 power management state */ - pmcsr &= ~PCI_PM_CTRL_STATE_MASK; - pmcsr |= (__force u16) PCI_D0; - pci_write_config_word(pdev, pos + PCI_PM_CTRL, pmcsr); + rc = pci_set_power_state(pdev, PCI_D0); + if (rc) + return rc; /* * The P600 requires a small delay when changing states. |