diff options
Diffstat (limited to 'drivers/pci/pcie/pme/pcie_pme.c')
| -rw-r--r-- | drivers/pci/pcie/pme/pcie_pme.c | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/drivers/pci/pcie/pme/pcie_pme.c b/drivers/pci/pcie/pme/pcie_pme.c index aac285a16b6..bbdea18693d 100644 --- a/drivers/pci/pcie/pme/pcie_pme.c +++ b/drivers/pci/pcie/pme/pcie_pme.c @@ -34,7 +34,7 @@ * being registered. Consequently, the interrupt-based PCIe PME signaling will * not be used by any PCIe root ports in that case. */ -static bool pcie_pme_disabled; +static bool pcie_pme_disabled = true; /* * The PCI Express Base Specification 2.0, Section 6.1.8, states the following: @@ -64,12 +64,19 @@ bool pcie_pme_msi_disabled; static int __init pcie_pme_setup(char *str) { - if (!strcmp(str, "off")) - pcie_pme_disabled = true; - else if (!strcmp(str, "force")) + if (!strncmp(str, "auto", 4)) + pcie_pme_disabled = false; + else if (!strncmp(str, "force", 5)) pcie_pme_force_enable = true; - else if (!strcmp(str, "nomsi")) - pcie_pme_msi_disabled = true; + + str = strchr(str, ','); + if (str) { + str++; + str += strspn(str, " \t"); + if (*str && !strcmp(str, "nomsi")) + pcie_pme_msi_disabled = true; + } + return 1; } __setup("pcie_pme=", pcie_pme_setup); @@ -147,6 +154,7 @@ static bool pcie_pme_walk_bus(struct pci_bus *bus) /* Skip PCIe devices in case we started from a root port. */ if (!pci_is_pcie(dev) && pci_check_pme_status(dev)) { pm_request_resume(&dev->dev); + pci_wakeup_event(dev); ret = true; } @@ -247,8 +255,10 @@ static void pcie_pme_handle_request(struct pci_dev *port, u16 req_id) if (found) { /* The device is there, but we have to check its PME status. */ found = pci_check_pme_status(dev); - if (found) + if (found) { pm_request_resume(&dev->dev); + pci_wakeup_event(dev); + } pci_dev_put(dev); } else if (devfn) { /* |