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[SCSI] pm8001: use pdev->pm_cap instead of pci_find_capability(..,PCI_CAP_ID_PM) 

Pci core has been saved pm cap register offset by pdev->pm_cap in
pci_pm_init() in init path. So we can use pdev->pm_cap instead of using
pci_find_capability(pdev, PCI_CAP_ID_PM) for better performance and simplified
code.

Tested-by: Lindar Liu <lindar_liu@usish.com>
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Acked-by: Lindar Liu <lindar_liu@usish.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Yijing Wang 2013-06-27 15:02:49 +08:00 committed by James Bottomley
parent 7a6a731bd0
commit c8a2ba3f50
1 changed files with 3 additions and 4 deletions
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7
drivers/scsi/pm8001/pm8001_init.c
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@ -912,14 +912,13 @@ static int pm8001_pci_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct sas_ha_struct *sha = pci_get_drvdata(pdev);
struct pm8001_hba_info *pm8001_ha;
int i , pos;
int i;
u32 device_state;
pm8001_ha = sha->lldd_ha;
flush_workqueue(pm8001_wq);
scsi_block_requests(pm8001_ha->shost);
pos = pci_find_capability(pdev, PCI_CAP_ID_PM);
if (pos == 0) {
printk(KERN_ERR " PCI PM not supported\n");
if (!pdev->pm_cap) {
dev_err(&pdev->dev, " PCI PM not supported\n");
return -ENODEV;
}
PM8001_CHIP_DISP->interrupt_disable(pm8001_ha, 0xFF);