From 74f55a62c4c354f43a6d75f77dd184c4f57b9a26 Mon Sep 17 00:00:00 2001
From: Mathias Nyman <mathias.nyman@linux.intel.com>
Date: Thu, 12 May 2022 01:04:50 +0300
Subject: [PATCH] xhci: Allow host runtime PM as default for Intel Alder Lake N xHCI
Git-commit: 74f55a62c4c354f43a6d75f77dd184c4f57b9a26
Patch-mainline: v5.19-rc1
References: git-fixes
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>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/usb/host/xhci-pci.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 49ba94de7459..fac9492a8bda 100644
--- 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;
--
2.35.3