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patch "usb: xhci: Fix ASMedia ASM1142 DMA addressing" added to usb-next

PATCH [email protected] 1 participant 1 message Jul 30, 2020

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This is a note to let you know that I've just added the patch titled

usb: xhci: Fix ASMedia ASM1142 DMA addressing

to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-next branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will also be merged in the next major kernel release during the merge window.

If you have any questions about this process, please let me know.

From ec37198acca7b4c17b96247697406e47aafe0605 Mon Sep 17 00:00:00 2001
From: Forest Crossman <[email protected]>
Date: Mon, 27 Jul 2020 23:24:08 -0500
Subject: usb: xhci: Fix ASMedia ASM1142 DMA addressing

I've confirmed that the ASMedia ASM1142 has the same problem as the ASM2142/ASM3142, in that it too reports that it supports 64-bit DMA addresses when in fact it does not. As with the ASM2142/ASM3142, this can cause problems on systems where the upper bits matter, and adding the XHCI_NO_64BIT_SUPPORT quirk completely fixes the issue.

---
 drivers/usb/host/xhci-pci.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
drivers/usb/host/xhci-pci.c +3 -1
index baa5af88ca67..3feaafebfe58 100644
@@ -59,6 +59,7 @@
 #define PCI_DEVICE_ID_AMD_PROMONTORYA_1			0x43bc
 #define PCI_DEVICE_ID_ASMEDIA_1042_XHCI			0x1042
 #define PCI_DEVICE_ID_ASMEDIA_1042A_XHCI		0x1142
+#define PCI_DEVICE_ID_ASMEDIA_1142_XHCI			0x1242
 #define PCI_DEVICE_ID_ASMEDIA_2142_XHCI			0x2142
 
 static const char hcd_name[] = "xhci_hcd";
@@ -268,7 +269,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 		pdev->device == PCI_DEVICE_ID_ASMEDIA_1042A_XHCI)
 		xhci->quirks |= XHCI_TRUST_TX_LENGTH;
 	if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
-		pdev->device == PCI_DEVICE_ID_ASMEDIA_2142_XHCI)
+	    (pdev->device == PCI_DEVICE_ID_ASMEDIA_1142_XHCI ||
+	     pdev->device == PCI_DEVICE_ID_ASMEDIA_2142_XHCI))
 		xhci->quirks |= XHCI_NO_64BIT_SUPPORT;
 
 	if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
Signature · 1 line
2.28.0