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

Alder Lake N TCSS xHCI needs to be runtime suspended whenever possible
to allow the TCSS hardware block to enter D3 and thus save energy

Cc: stable@kernel.org
Suggested-by: Gopal Vamshi Krishna <vamshi.krishna.gopal@intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20220511220450.85367-10-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 49ba94de74599ffc5547bf76e9f330408d157a8f..fac9492a8bda0fb94413f4d78fab39bc8242539a 100644 (file)
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -59,6 +59,7 @@
 #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_INTEL_ALDER_LAKE_N_XHCI          0x464e
 #define PCI_DEVICE_ID_INTEL_ALDER_LAKE_PCH_XHCI        0x51ed
 
 #define PCI_DEVICE_ID_AMD_RENOIR_XHCI                  0x1639
@@ -267,6 +268,7 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *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_ALDER_LAKE_XHCI ||
+            pdev->device == PCI_DEVICE_ID_INTEL_ALDER_LAKE_N_XHCI ||
             pdev->device == PCI_DEVICE_ID_INTEL_ALDER_LAKE_PCH_XHCI))
                xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;