linux-kernel - [PATCH v2 2/2] xhci: Apply broken streams quirk to Etron EJ188 xHCI host

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Message-Id: <20240528033136.14102-1-ki.chiang65@gmail.com>
Date: Tue, 28 May 2024 11:31:35 +0800
From: Kuangyi Chiang <ki.chiang65@...il.com>
To: mathias.nyman@...el.com,
	gregkh@...uxfoundation.org
Cc: linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	ki.chiang65@...il.com,
	stable@...r.kernel.org
Subject: [PATCH v2 2/2] xhci: Apply broken streams quirk to Etron EJ188 xHCI host

As described in commit 8f873c1ff4ca ("xhci: Blacklist using streams on the
Etron EJ168 controller"), EJ188 have the same issue as EJ168, where Streams
do not work reliable on EJ188. So apply XHCI_BROKEN_STREAMS quirk to EJ188
as well.

Cc: <stable@...r.kernel.org>
Signed-off-by: Kuangyi Chiang <ki.chiang65@...il.com>
---
Changes in v2:
- Porting to latest release

 drivers/usb/host/xhci-pci.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index b47d57d80b96..effeec5cf1fa 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -399,6 +399,7 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 	if (pdev->vendor == PCI_VENDOR_ID_ETRON &&
 			pdev->device == PCI_DEVICE_ID_EJ188) {
 		xhci->quirks |= XHCI_RESET_ON_RESUME;
+		xhci->quirks |= XHCI_BROKEN_STREAMS;
 	}
 	if (pdev->vendor == PCI_VENDOR_ID_RENESAS &&
 	    pdev->device == 0x0014) {
-- 
2.25.1