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PCI: Wait for device to become ready after a power management reset
PCIe r4.0, sec 2.3.1, Request Handling Rules, indicates that a device can return CRS Completion Status following a D3hot to D0 transition. Wait until the device becomes ready in that situation. Signed-off-by: Sinan Kaya <okaya@codeaurora.org> Signed-off-by: Bjorn Helgaas <helgaas@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
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@ -4188,7 +4188,7 @@ static int pci_pm_reset(struct pci_dev *dev, int probe)
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pci_write_config_word(dev, dev->pm_cap + PCI_PM_CTRL, csr);
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pci_write_config_word(dev, dev->pm_cap + PCI_PM_CTRL, csr);
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pci_dev_d3_sleep(dev);
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pci_dev_d3_sleep(dev);
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return 0;
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return pci_dev_wait(dev, "PM D3->D0", PCIE_RESET_READY_POLL_MS);
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}
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}
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void pci_reset_secondary_bus(struct pci_dev *dev)
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void pci_reset_secondary_bus(struct pci_dev *dev)
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