linux-kernel - [PATCH v3 2/2] xhci: Apply broken streams quirk to Etron EJ188 xHCI host

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Message-Id: <20240529022420.9449-1-ki.chiang65@gmail.com>
Date: Wed, 29 May 2024 10:24:19 +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 v3 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 v3:
- Fix coding style

Changes in v2:
- Porting to latest release

 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 dd8256e4e02a..05881153883e 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -397,8 +397,10 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 		xhci->quirks |= XHCI_BROKEN_STREAMS;
 	}
 	if (pdev->vendor == PCI_VENDOR_ID_ETRON &&
-			pdev->device == PCI_DEVICE_ID_EJ188)
+			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