[PATCH 5.15 009/177] xhci: Enable runtime PM on second Alderlake controller

Greg Kroah-Hartman
2022-05-04T17:13:10Z

From: Evan Green <evgreen@chromium.org>

commit d8bfe5091d6cc4b8b8395e4666979ae72a6069ca upstream.

Alderlake has two XHCI controllers with PCI IDs 0x461e and 0x51ed. We
had previously added the quirk to default enable runtime PM for 0x461e,
now add it for 0x51ed as well.

Signed-off-by: Evan Green <evgreen@chromium.org>
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/20220408114225.1.Ibcff6b86ed4eacfe4c4bc89c90e18416f3900a3e@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/host/xhci-pci.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

--- 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_PCH_XHCI 0x51ed

#define PCI_DEVICE_ID_AMD_RENOIR_XHCI 0x1639
#define PCI_DEVICE_ID_AMD_PROMONTORYA_4 0x43b9
@@ -266,7 +267,8 @@ static void xhci_pci_quirks(struct devic
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_ALDER_LAKE_XHCI))
+ pdev->device == PCI_DEVICE_ID_INTEL_ALDER_LAKE_XHCI ||
+ pdev->device == PCI_DEVICE_ID_INTEL_ALDER_LAKE_PCH_XHCI))
xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;

if (pdev->vendor == PCI_VENDOR_ID_ETRON &&