| commit | ddf1dab2919b15c29f1cc1baa9546b5d686afd95 | [log] [tgz] |
|---|---|---|
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | Fri Nov 06 12:05:25 2020 +0200 |
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | Wed Dec 30 11:53:18 2020 +0100 |
| tree | f62211f546bc730fb01c5d2f90902188832a3290 | |
| parent | 6cf9c3f4dfa07837acb520256091b21d315cfda8 [diff] |
PCI: Disable MSI for Pericom PCIe-USB adapter [ Upstream commit f83c37941e881224885f2e694e0626bea358e96b ] 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: 306c54d0edb6 ("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: alberto.vignani@fastwebnet.it Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Sasha Levin <sashal@kernel.org>