Received-SPF: pass (google.com: domain of linux-kernel+bounces-210921-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) client-ip=147.75.199.223;
From: Reka Norman <rekanorman@chromium.org>
To: Mathias Nyman <mathias.nyman@intel.com>
Cc: Reka Norman <rekanorman@chromium.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-kernel@vger.kernel.org,
	linux-usb@vger.kernel.org
Subject: [PATCH] xhci: Apply XHCI_RESET_TO_DEFAULT quirk to TGL
Date: Wed, 12 Jun 2024 14:47:38 +1000
Message-ID: <20240612044759.3193928-1-rekanorman@chromium.org>
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit

TGL systems have the same issue as ADL, where a large boot firmware
delay is seen if USB ports are left in U3 at shutdown. So apply the
XHCI_RESET_TO_DEFAULT quirk to TGL as well.

The issue it fixes is a ~20s boot time delay when booting from S5. It
affects TGL devices, and TGL support was added starting from v5.3.

Signed-off-by: Reka Norman <rekanorman@chromium.org>
---

 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 c040d816e626..137bd3da1128 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -49,6 +49,7 @@
 #define PCI_DEVICE_ID_INTEL_DENVERTON_XHCI		0x19d0
 #define PCI_DEVICE_ID_INTEL_ICE_LAKE_XHCI		0x8a13
 #define PCI_DEVICE_ID_INTEL_TIGER_LAKE_XHCI		0x9a13
+#define PCI_DEVICE_ID_INTEL_TIGER_LAKE_PCH_XHCI		0xa0ed
 #define PCI_DEVICE_ID_INTEL_COMET_LAKE_XHCI		0xa3af
 #define PCI_DEVICE_ID_INTEL_ALDER_LAKE_PCH_XHCI		0x51ed
 #define PCI_DEVICE_ID_INTEL_ALDER_LAKE_N_PCH_XHCI	0x54ed
@@ -372,7 +373,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 		xhci->quirks |= XHCI_MISSING_CAS;
 
 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
-	    (pdev->device == PCI_DEVICE_ID_INTEL_ALDER_LAKE_PCH_XHCI ||
+	    (pdev->device == PCI_DEVICE_ID_INTEL_TIGER_LAKE_PCH_XHCI ||
+	     pdev->device == PCI_DEVICE_ID_INTEL_ALDER_LAKE_PCH_XHCI ||
 	     pdev->device == PCI_DEVICE_ID_INTEL_ALDER_LAKE_N_PCH_XHCI))
 		xhci->quirks |= XHCI_RESET_TO_DEFAULT;
 
-- 
2.45.2.505.gda0bf45e8d-goog