Hi, Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> writes: > Intel Maple Ridge is successor of Titan Ridge Thunderbolt controller. As > Titan Ridge this one also includes xHCI host controller. In order to > safe energy we should put it to low power state by default when idle. ^^^^ save > For this reason allow host runtime PM for Maple Ridge. > > Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> > --- > drivers/usb/host/xhci-pci.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c > index bf89172c43ca..d17e463087df 100644 > --- a/drivers/usb/host/xhci-pci.c > +++ b/drivers/usb/host/xhci-pci.c > @@ -55,6 +55,7 @@ > #define PCI_DEVICE_ID_INTEL_ICE_LAKE_XHCI 0x8a13 > #define PCI_DEVICE_ID_INTEL_CML_XHCI 0xa3af > #define PCI_DEVICE_ID_INTEL_TIGER_LAKE_XHCI 0x9a13 > +#define PCI_DEVICE_ID_INTEL_MAPLE_RIDGE_XHCI 0x1138 > > #define PCI_DEVICE_ID_AMD_PROMONTORYA_4 0x43b9 > #define PCI_DEVICE_ID_AMD_PROMONTORYA_3 0x43ba > @@ -238,7 +239,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) > pdev->device == PCI_DEVICE_ID_INTEL_TITAN_RIDGE_4C_XHCI || > pdev->device == PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_XHCI || > pdev->device == PCI_DEVICE_ID_INTEL_ICE_LAKE_XHCI || > - pdev->device == PCI_DEVICE_ID_INTEL_TIGER_LAKE_XHCI)) > + pdev->device == PCI_DEVICE_ID_INTEL_TIGER_LAKE_XHCI || > + pdev->device == PCI_DEVICE_ID_INTEL_MAPLE_RIDGE_XHCI)) > xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW; the ever growing list of quirks to *allow* PM :-) Perhaps the logic should be inverted here and call a quirk to something that *can't* handle PM? -- balbi
