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Disable L1ss for lemans due to connectivity issues on board #499

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Disable L1ss for lemans due to connectivity issues on board #499

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6 changes: 6 additions & 0 deletions drivers/pci/quirks.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2527,6 +2527,12 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_FREESCALE, 0x0451, quirk_disable_aspm_l0s
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_PASEMI, 0xa002, quirk_disable_aspm_l0s_l1);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_HUAWEI, 0x1105, quirk_disable_aspm_l0s_l1);

static void quirk_disable_aspm_l1ss(struct pci_dev *dev)
{
pci_disable_link_state(dev, PCIE_LINK_STATE_L1_1 | PCIE_LINK_STATE_L1_2);
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_QCOM, 0x115, quirk_disable_aspm_l1ss);

/*
* Some Pericom PCIe-to-PCI bridges in reverse mode need the PCIe Retrain
* Link bit cleared after starting the link retrain process to allow this
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