PCI: Mark TI C667X to avoid bus reset
Some TI KeyStone C667X devices do not support bus/hot reset. The PCIESS automatically disables LTSSM when Secondary Bus Reset is received and device stops working. Prevent bus reset for these devices. With this change, the device can be assigned to VMs with VFIO, but it will leak state between VMs. Reference: https://e2e.ti.com/support/processors/f/791/t/954382 Link: https://lore.kernel.org/r/20210315102606.17153-1-antti.jarvinen@gmail.com Signed-off-by:Antti Järvinen <antti.jarvinen@gmail.com> Signed-off-by:
Bjorn Helgaas <bhelgaas@google.com> Reviewed-by:
Kishon Vijay Abraham I <kishon@ti.com> Cc: stable@vger.kernel.org
parent
a512360f