diff options
Diffstat (limited to 'drivers/pci/pci-acpi.c')
-rw-r--r-- | drivers/pci/pci-acpi.c | 90 |
1 files changed, 22 insertions, 68 deletions
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index 47070cff508c..e70c1c7ba1bf 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -394,29 +394,26 @@ bool pciehp_is_native(struct pci_dev *pdev) /** * pci_acpi_wake_bus - Root bus wakeup notification fork function. - * @work: Work item to handle. + * @context: Device wakeup context. */ -static void pci_acpi_wake_bus(struct work_struct *work) +static void pci_acpi_wake_bus(struct acpi_device_wakeup_context *context) { struct acpi_device *adev; struct acpi_pci_root *root; - adev = container_of(work, struct acpi_device, wakeup.context.work); + adev = container_of(context, struct acpi_device, wakeup.context); root = acpi_driver_data(adev); pci_pme_wakeup_bus(root->bus); } /** * pci_acpi_wake_dev - PCI device wakeup notification work function. - * @handle: ACPI handle of a device the notification is for. - * @work: Work item to handle. + * @context: Device wakeup context. */ -static void pci_acpi_wake_dev(struct work_struct *work) +static void pci_acpi_wake_dev(struct acpi_device_wakeup_context *context) { - struct acpi_device_wakeup_context *context; struct pci_dev *pci_dev; - context = container_of(work, struct acpi_device_wakeup_context, work); pci_dev = to_pci_dev(context->dev); if (pci_dev->pme_poll) @@ -424,7 +421,7 @@ static void pci_acpi_wake_dev(struct work_struct *work) if (pci_dev->current_state == PCI_D3cold) { pci_wakeup_event(pci_dev); - pm_runtime_resume(&pci_dev->dev); + pm_request_resume(&pci_dev->dev); return; } @@ -433,7 +430,7 @@ static void pci_acpi_wake_dev(struct work_struct *work) pci_check_pme_status(pci_dev); pci_wakeup_event(pci_dev); - pm_runtime_resume(&pci_dev->dev); + pm_request_resume(&pci_dev->dev); pci_pme_wakeup_bus(pci_dev->subordinate); } @@ -572,67 +569,29 @@ static pci_power_t acpi_pci_get_power_state(struct pci_dev *dev) return state_conv[state]; } -static bool acpi_pci_can_wakeup(struct pci_dev *dev) -{ - struct acpi_device *adev = ACPI_COMPANION(&dev->dev); - return adev ? acpi_device_can_wakeup(adev) : false; -} - -static void acpi_pci_propagate_wakeup_enable(struct pci_bus *bus, bool enable) -{ - while (bus->parent) { - if (!acpi_pm_device_sleep_wake(&bus->self->dev, enable)) - return; - bus = bus->parent; - } - - /* We have reached the root bus. */ - if (bus->bridge) - acpi_pm_device_sleep_wake(bus->bridge, enable); -} - -static int acpi_pci_sleep_wake(struct pci_dev *dev, bool enable) -{ - if (acpi_pci_can_wakeup(dev)) - return acpi_pm_device_sleep_wake(&dev->dev, enable); - - acpi_pci_propagate_wakeup_enable(dev->bus, enable); - return 0; -} - -static void acpi_pci_propagate_run_wake(struct pci_bus *bus, bool enable) +static int acpi_pci_propagate_wakeup(struct pci_bus *bus, bool enable) { while (bus->parent) { - struct pci_dev *bridge = bus->self; + if (acpi_pm_device_can_wakeup(&bus->self->dev)) + return acpi_pm_set_device_wakeup(&bus->self->dev, enable); - if (bridge->pme_interrupt) - return; - if (!acpi_pm_device_run_wake(&bridge->dev, enable)) - return; bus = bus->parent; } /* We have reached the root bus. */ - if (bus->bridge) - acpi_pm_device_run_wake(bus->bridge, enable); + if (bus->bridge) { + if (acpi_pm_device_can_wakeup(bus->bridge)) + return acpi_pm_set_device_wakeup(bus->bridge, enable); + } + return 0; } -static int acpi_pci_run_wake(struct pci_dev *dev, bool enable) +static int acpi_pci_wakeup(struct pci_dev *dev, bool enable) { - /* - * Per PCI Express Base Specification Revision 2.0 section - * 5.3.3.2 Link Wakeup, platform support is needed for D3cold - * waking up to power on the main link even if there is PME - * support for D3cold - */ - if (dev->pme_interrupt && !dev->runtime_d3cold) - return 0; - - if (!acpi_pm_device_run_wake(&dev->dev, enable)) - return 0; + if (acpi_pm_device_can_wakeup(&dev->dev)) + return acpi_pm_set_device_wakeup(&dev->dev, enable); - acpi_pci_propagate_run_wake(dev->bus, enable); - return 0; + return acpi_pci_propagate_wakeup(dev->bus, enable); } static bool acpi_pci_need_resume(struct pci_dev *dev) @@ -656,8 +615,7 @@ static const struct pci_platform_pm_ops acpi_pci_platform_pm = { .set_state = acpi_pci_set_power_state, .get_state = acpi_pci_get_power_state, .choose_state = acpi_pci_choose_state, - .sleep_wake = acpi_pci_sleep_wake, - .run_wake = acpi_pci_run_wake, + .set_wakeup = acpi_pci_wakeup, .need_resume = acpi_pci_need_resume, }; @@ -780,9 +738,7 @@ static void pci_acpi_setup(struct device *dev) return; device_set_wakeup_capable(dev, true); - acpi_pci_sleep_wake(pci_dev, false); - if (adev->wakeup.flags.run_wake) - device_set_run_wake(dev, true); + acpi_pci_wakeup(pci_dev, false); } static void pci_acpi_cleanup(struct device *dev) @@ -793,10 +749,8 @@ static void pci_acpi_cleanup(struct device *dev) return; pci_acpi_remove_pm_notifier(adev); - if (adev->wakeup.flags.valid) { + if (adev->wakeup.flags.valid) device_set_wakeup_capable(dev, false); - device_set_run_wake(dev, false); - } } static bool pci_acpi_bus_match(struct device *dev) |