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author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-14 09:29:05 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-14 09:29:05 -0800 |
commit | d73b388459b1ee2e80f8ff9c1916d75640d7d920 (patch) | |
tree | 3e4061226f817c5728009f0bcc1d810d0c4a7b37 /drivers/pci/pcie/pme.c | |
parent | 5957e33d6aec266659a71cfabcf7cf2c593ad0d2 (diff) | |
parent | 0f953bf6b4efa0daddb7c418130a9bd3ee97f7ed (diff) | |
download | kernel_samsung_smdk4412-d73b388459b1ee2e80f8ff9c1916d75640d7d920.zip kernel_samsung_smdk4412-d73b388459b1ee2e80f8ff9c1916d75640d7d920.tar.gz kernel_samsung_smdk4412-d73b388459b1ee2e80f8ff9c1916d75640d7d920.tar.bz2 |
Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
PCI/PM: Report wakeup events before resuming devices
PCI/PM: Use pm_wakeup_event() directly for reporting wakeup events
PCI: sysfs: Update ROM to include default owner write access
x86/PCI: make Broadcom CNB20LE driver EMBEDDED and EXPERIMENTAL
x86/PCI: don't use native Broadcom CNB20LE driver when ACPI is available
PCI/ACPI: Request _OSC control once for each root bridge (v3)
PCI: enable pci=bfsort by default on future Dell systems
PCI/PCIe: Clear Root PME Status bits early during system resume
PCI: pci-stub: ignore zero-length id parameters
x86/PCI: irq and pci_ids patch for Intel Patsburg
PCI: Skip id checking if no id is passed
PCI: fix __pci_device_probe kernel-doc warning
PCI: make pci_restore_state return void
PCI: Disable ASPM if BIOS asks us to
PCI: Add mask bit definition for MSI-X table
PCI: MSI: Move MSI-X entry definition to pci_regs.h
Fix up trivial conflicts in drivers/net/{skge.c,sky2.c} that had in the
meantime been converted to not use legacy PCI power management, and thus
no longer use pci_restore_state() at all (and that caused trivial
conflicts with the "make pci_restore_state return void" patch)
Diffstat (limited to 'drivers/pci/pcie/pme.c')
-rw-r--r-- | drivers/pci/pcie/pme.c | 31 |
1 files changed, 6 insertions, 25 deletions
diff --git a/drivers/pci/pcie/pme.c b/drivers/pci/pcie/pme.c index 2f3c904..0057344 100644 --- a/drivers/pci/pcie/pme.c +++ b/drivers/pci/pcie/pme.c @@ -26,9 +26,6 @@ #include "../pci.h" #include "portdrv.h" -#define PCI_EXP_RTSTA_PME 0x10000 /* PME status */ -#define PCI_EXP_RTSTA_PENDING 0x20000 /* PME pending */ - /* * If this switch is set, MSI will not be used for PCIe PME signaling. This * causes the PCIe port driver to use INTx interrupts only, but it turns out @@ -74,22 +71,6 @@ void pcie_pme_interrupt_enable(struct pci_dev *dev, bool enable) } /** - * pcie_pme_clear_status - Clear root port PME interrupt status. - * @dev: PCIe root port or event collector. - */ -static void pcie_pme_clear_status(struct pci_dev *dev) -{ - int rtsta_pos; - u32 rtsta; - - rtsta_pos = pci_pcie_cap(dev) + PCI_EXP_RTSTA; - - pci_read_config_dword(dev, rtsta_pos, &rtsta); - rtsta |= PCI_EXP_RTSTA_PME; - pci_write_config_dword(dev, rtsta_pos, rtsta); -} - -/** * pcie_pme_walk_bus - Scan a PCI bus for devices asserting PME#. * @bus: PCI bus to scan. * @@ -103,8 +84,8 @@ static bool pcie_pme_walk_bus(struct pci_bus *bus) list_for_each_entry(dev, &bus->devices, bus_list) { /* 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); + pm_request_resume(&dev->dev); ret = true; } @@ -206,8 +187,8 @@ static void pcie_pme_handle_request(struct pci_dev *port, u16 req_id) /* The device is there, but we have to check its PME status. */ found = pci_check_pme_status(dev); if (found) { - pm_request_resume(&dev->dev); pci_wakeup_event(dev); + pm_request_resume(&dev->dev); } pci_dev_put(dev); } else if (devfn) { @@ -253,7 +234,7 @@ static void pcie_pme_work_fn(struct work_struct *work) * Clear PME status of the port. If there are other * pending PMEs, the status will be set again. */ - pcie_pme_clear_status(port); + pcie_clear_root_pme_status(port); spin_unlock_irq(&data->lock); pcie_pme_handle_request(port, rtsta & 0xffff); @@ -378,7 +359,7 @@ static int pcie_pme_probe(struct pcie_device *srv) port = srv->port; pcie_pme_interrupt_enable(port, false); - pcie_pme_clear_status(port); + pcie_clear_root_pme_status(port); ret = request_irq(srv->irq, pcie_pme_irq, IRQF_SHARED, "PCIe PME", srv); if (ret) { @@ -402,7 +383,7 @@ static int pcie_pme_suspend(struct pcie_device *srv) spin_lock_irq(&data->lock); pcie_pme_interrupt_enable(port, false); - pcie_pme_clear_status(port); + pcie_clear_root_pme_status(port); data->noirq = true; spin_unlock_irq(&data->lock); @@ -422,7 +403,7 @@ static int pcie_pme_resume(struct pcie_device *srv) spin_lock_irq(&data->lock); data->noirq = false; - pcie_pme_clear_status(port); + pcie_clear_root_pme_status(port); pcie_pme_interrupt_enable(port, true); spin_unlock_irq(&data->lock); |