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authorBjorn Helgaas <bhelgaas@google.com>2017-07-03 02:48:49 +0300
committerBjorn Helgaas <bhelgaas@google.com>2017-07-03 02:48:49 +0300
commit2cf816a947e0f729825a1bb73d2eed6255c29f88 (patch)
tree68cd933694029bd2f4a47973038ce0662ae47828 /arch/x86/pci
parent6a1c1d553ebf4e4241c0b1e20517a67e36d46c12 (diff)
parent666ff6f83e1db6ed847abf44eb5e3402d82b9350 (diff)
downloadlinux-2cf816a947e0f729825a1bb73d2eed6255c29f88.tar.xz
Merge branch 'pci/pm' into next
* pci/pm: PCI/PM: Avoid using device_may_wakeup() for runtime PM x86/PCI: Avoid AMD SB7xx EHCI USB wakeup defect PCI/PM: Restore the status of PCI devices across hibernation drm/radeon: make MacBook Pro d3_delay quirk more generic drm/amdgpu: remove unnecessary save/restore of pdev->d3_delay PCI/PM: Add needs_resume flag to avoid suspend complete optimization PCI: imx6: Fix config read timeout handling switchtec: Fix minor bug with partition ID register switchtec: Use new cdev_device_add() helper function PCI: endpoint: Make PCI_ENDPOINT depend on HAS_DMA
Diffstat (limited to 'arch/x86/pci')
-rw-r--r--arch/x86/pci/fixup.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c
index 6d52b94f4bb9..2259acdcede5 100644
--- a/arch/x86/pci/fixup.c
+++ b/arch/x86/pci/fixup.c
@@ -571,3 +571,18 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2fc0, pci_invalid_bar);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6f60, pci_invalid_bar);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6fa0, pci_invalid_bar);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6fc0, pci_invalid_bar);
+
+/*
+ * Device [1022:7808]
+ * 23. USB Wake on Connect/Disconnect with Low Speed Devices
+ * https://support.amd.com/TechDocs/46837.pdf
+ * Appendix A2
+ * https://support.amd.com/TechDocs/42413.pdf
+ */
+static void pci_fixup_amd_ehci_pme(struct pci_dev *dev)
+{
+ dev_info(&dev->dev, "PME# does not work under D3, disabling it\n");
+ dev->pme_support &= ~((PCI_PM_CAP_PME_D3 | PCI_PM_CAP_PME_D3cold)
+ >> PCI_PM_CAP_PME_SHIFT);
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x7808, pci_fixup_amd_ehci_pme);