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Commit f83c3794 authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Bjorn Helgaas
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PCI: Disable MSI for Pericom PCIe-USB adapter

Pericom PCIe-USB adapter advertises MSI, but documentation says "The MSI
Function is not implemented on this device" in chapters 7.3.27,
7.3.29-7.3.31, and Alberto found that MSI in fact does not work.

Disable MSI for these devices.

Datasheet: https://www.diodes.com/assets/Datasheets/PI7C9X440SL.pdf
Fixes: 306c54d0 ("usb: hcd: Try MSI interrupts on PCI devices")
Link: https://lore.kernel.org/linux-usb/20201030134826.GP4077@smile.fi.intel.com/
Link: https://lore.kernel.org/r/20201106100526.17726-1-andriy.shevchenko@linux.intel.com


Reported-by: default avatar <alberto.vignani@fastwebnet.it>
Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
parent f8394f23
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