lkml.org 
[lkml]   [2020]   [Aug]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 4.19 04/48] usb: xhci: Fix ASMedia ASM1142 DMA addressing
    Date
    From: Forest Crossman <cyrozap@gmail.com>

    commit ec37198acca7b4c17b96247697406e47aafe0605 upstream.

    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.

    Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
    Signed-off-by: Forest Crossman <cyrozap@gmail.com>
    Cc: stable <stable@vger.kernel.org>
    Link: https://lore.kernel.org/r/20200728042408.180529-3-cyrozap@gmail.com
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/usb/host/xhci-pci.c | 4 +++-
    1 file changed, 3 insertions(+), 1 deletion(-)

    --- a/drivers/usb/host/xhci-pci.c
    +++ b/drivers/usb/host/xhci-pci.c
    @@ -49,6 +49,7 @@
    #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";
    @@ -234,7 +235,8 @@ static void xhci_pci_quirks(struct devic
    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 &&

    \
     
     \ /
      Last update: 2020-08-10 17:33    [W:6.497 / U:0.428 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site