xhci-pci: Allow host runtime PM as default for Intel Alder Lake xHCI

In the same way as Intel Tiger Lake TCSS (Type-C Subsystem) the Alder Lake TCSS xHCI needs to be runtime suspended whenever possible to allow the TCSS hardware block to enter D3cold and thus save energy. Cc: [email protected] Signed-off-by: Abhijeet Rao <[email protected]> Signed-off-by: Nikunj A. Dadhania <[email protected]> Signed-off-by: Azhar Shaikh <[email protected]> Signed-off-by: Mathias Nyman <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
tobetter · May 13, 2021 · b813511 · b813511
1 parent d9ff109
commit b813511
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
@@ -57,6 +57,7 @@
 #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_INTEL_ALDER_LAKE_XHCI		0x461e
 
 #define PCI_DEVICE_ID_AMD_PROMONTORYA_4			0x43b9
 #define PCI_DEVICE_ID_AMD_PROMONTORYA_3			0x43ba
@@ -243,7 +244,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *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_MAPLE_RIDGE_XHCI))
+	     pdev->device == PCI_DEVICE_ID_INTEL_MAPLE_RIDGE_XHCI ||
+	     pdev->device == PCI_DEVICE_ID_INTEL_ALDER_LAKE_XHCI))
 		xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;
 
 	if (pdev->vendor == PCI_VENDOR_ID_ETRON &&