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authorYijing Wang <wangyijing@huawei.com>2013-06-18 16:22:14 +0800
committerBjorn Helgaas <bhelgaas@google.com>2013-06-18 12:05:34 -0600
commit728cdb7582a230234795619036d887d7f52bce1e (patch)
tree0de33c16dddda3b7e94d3657d27150ee20c24201 /drivers/pci
parentfc6504b3a4dc9beae782a11e6f7c3c4a9f077fb8 (diff)
PCI: Use pdev->pm_cap instead of pci_find_capability(..,PCI_CAP_ID_PM)
PCI PM cap register offset has been saved in pci_pm_init(), so we can use pdev->pm_cap instead of using pci_find_capability(..) here. Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/pci.c2
-rw-r--r--drivers/pci/quirks.c6
2 files changed, 3 insertions, 5 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 709791b70ca..e37fea6e178 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -805,7 +805,7 @@ pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state)
{
pci_power_t ret;
- if (!pci_find_capability(dev, PCI_CAP_ID_PM))
+ if (!dev->pm_cap)
return PCI_D0;
ret = platform_pci_choose_state(dev);
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 7f492574dcf..dee5ed4f7b6 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1832,7 +1832,6 @@ static void quirk_e100_interrupt(struct pci_dev *dev)
u16 command, pmcsr;
u8 __iomem *csr;
u8 cmd_hi;
- int pm;
switch (dev->device) {
/* PCI IDs taken from drivers/net/e100.c */
@@ -1870,9 +1869,8 @@ static void quirk_e100_interrupt(struct pci_dev *dev)
* Check that the device is in the D0 power state. If it's not,
* there is no point to look any further.
*/
- pm = pci_find_capability(dev, PCI_CAP_ID_PM);
- if (pm) {
- pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr);
+ if (dev->pm_cap) {
+ pci_read_config_word(dev, dev->pm_cap + PCI_PM_CTRL, &pmcsr);
if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0)
return;
}