switchtec: Fix minor bug with partition ID register
authorLogan Gunthorpe <logang@deltatee.com>
Mon, 22 May 2017 21:52:30 +0000 (16:52 -0500)
committerBjorn Helgaas <bhelgaas@google.com>
Mon, 22 May 2017 21:52:30 +0000 (16:52 -0500)
commit9871e9bb5cf6ff0b51457ca74c270c5c5230b224
treee2627f003c78390e5e7adcfef4ffc4423313e5a9
parente40cf640b8f632091a30ef0b030c83546f07c902
switchtec: Fix minor bug with partition ID register

When a switch endpoint is configured without NTB, the mmio_ntb registers
will read all zeros.  However, in corner case configurations where the
partition ID is not zero and NTB is not enabled, the code will have the
wrong partition ID and this causes the driver to use the wrong set of
drivers.  To fix this we simply take the partition ID from the system info
region.

Reported-by: Dingbao Chen <dingbao.chen@microsemi.com>
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
drivers/pci/switch/switchtec.c