diff options
| author | Thinh Nguyen <thinh.nguyen@synopsys.com> | 2019-02-06 21:49:26 +0300 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2019-02-07 14:17:19 +0300 |
| commit | 9c7ebc99b382a158fd2594adbfc204e526b16e08 (patch) | |
| tree | cc7d14ff191351cf2abe7b9294ab8595a4d1f49a | |
| parent | bdcc03cef0fd8abc6eaeec6ac47e54ae8f8c625f (diff) | |
| download | linux-9c7ebc99b382a158fd2594adbfc204e526b16e08.tar.xz | |
usb: dwc3: haps: Workaround matching VID PID
i.MX6QP and i.MX7D platform use a PCIe controller with the same VID and
PID as this USB controller. The system may incorrectly match this driver
to that PCIe controller. To workaround this, specifically use class type
USB with PCI device ID to prevent incorrect driver matching.
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| -rw-r--r-- | drivers/usb/dwc3/dwc3-haps.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/dwc3-haps.c b/drivers/usb/dwc3/dwc3-haps.c index 02d57d98ef9b..3cecbf169452 100644 --- a/drivers/usb/dwc3/dwc3-haps.c +++ b/drivers/usb/dwc3/dwc3-haps.c @@ -106,6 +106,15 @@ static const struct pci_device_id dwc3_haps_id_table[] = { { PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3), + /* + * i.MX6QP and i.MX7D platform use a PCIe controller with the + * same VID and PID as this USB controller. The system may + * incorrectly match this driver to that PCIe controller. To + * workaround this, specifically use class type USB to prevent + * incorrect driver matching. + */ + .class = (PCI_CLASS_SERIAL_USB << 8), + .class_mask = 0xffff00, }, { PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, |