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uhpatelgregkh
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xhci-pci: Allow host runtime PM as default for Intel Meteor Lake xHCI
Meteor Lake TCSS(Type-C Subsystem) xHCI needs to be runtime suspended whenever possible to allow the TCSS hardware block to enter D3cold and thus save energy. Cc: stable@kernel.org Signed-off-by: Utkarsh Patel <utkarsh.h.patel@intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20220623111945.1557702-5-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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drivers/usb/host/xhci-pci.c

Lines changed: 3 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -62,6 +62,7 @@
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#define PCI_DEVICE_ID_INTEL_ALDER_LAKE_N_XHCI 0x464e
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#define PCI_DEVICE_ID_INTEL_ALDER_LAKE_PCH_XHCI 0x51ed
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#define PCI_DEVICE_ID_INTEL_RAPTOR_LAKE_XHCI 0xa71e
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#define PCI_DEVICE_ID_INTEL_METEOR_LAKE_XHCI 0x7ec0
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#define PCI_DEVICE_ID_AMD_RENOIR_XHCI 0x1639
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#define PCI_DEVICE_ID_AMD_PROMONTORYA_4 0x43b9
@@ -271,7 +272,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
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pdev->device == PCI_DEVICE_ID_INTEL_ALDER_LAKE_XHCI ||
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pdev->device == PCI_DEVICE_ID_INTEL_ALDER_LAKE_N_XHCI ||
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pdev->device == PCI_DEVICE_ID_INTEL_ALDER_LAKE_PCH_XHCI ||
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pdev->device == PCI_DEVICE_ID_INTEL_RAPTOR_LAKE_XHCI))
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pdev->device == PCI_DEVICE_ID_INTEL_RAPTOR_LAKE_XHCI ||
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pdev->device == PCI_DEVICE_ID_INTEL_METEOR_LAKE_XHCI))
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xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;
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if (pdev->vendor == PCI_VENDOR_ID_ETRON &&

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