Am Montag, 20. M?rz 2017, 10:38:00 CET schrieb Shawn Lin: > It's suggested to fix the domain number for all PCIe > host bridges or not set it at all. However, if we don't > fix it, the domain number will keep increasing ever when > doing unbind/bind test, which makes the bus tree of lspci > introduce pointless domain hierarchy. More investigation shows > the domain number allocater of PCI doesn't consider the conflict > of domain number if we have more than one PCIe port belonging to > different domains. So once unbinding/binding one of them and keep > others would going to overflow the domain number so that finally > it will share the same domain as others, but actually it shouldn't. > We should fix the domain number for PCIe or invent new indexing > ID mechanisms. However it isn't worth inventing new indexing ID > mechanisms personlly, Just look at how other Root Complex drivers > did, for instance, broadcom and qualcomm, it seems fixing the domain > number was more popular. So this patch gonna fix the domain number > of PCIe for rk3399. > > Cc: Brian Norris <briannorris at chromium.org> > Signed-off-by: Shawn Lin <shawn.lin at rock-chips.com> applied for 4.12 with Brian's tags. Thanks Heiko
