From 12123b0fb0ec880fdd2f1e088d3139a101933593 Mon Sep 17 00:00:00 2001
From: Minghuan Lian <Minghuan.Lian@freescale.com>
Date: Tue, 23 Sep 2014 22:28:57 +0800
Subject: PCI: designware: Fix IO resource end address calculation

End address should be equal to start_addr + size - 1.  Fix PCI IO resource
end address calculation.

Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Mohit KUMAR <mohit.kumar@st.com>

The patch comes from:
https://git.kernel.org/cgit/linux/kernel/git/helgaas/pci.git/commit/?h=next&id=0c61ea77cceafd1134225099961c2df0866b500f
Change-Id: I1c820af498f99bca3ea235f297182a6620fa7ee1
Reviewed-on: http://git.am.freescale.net:8181/19708
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Zhengxiong Jin <Jason.Jin@freescale.com>

diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
index 4aa8146..5c56eea 100644
--- a/drivers/pci/host/pcie-designware.c
+++ b/drivers/pci/host/pcie-designware.c
@@ -453,7 +453,7 @@ int __init dw_pcie_host_init(struct pcie_port *pp)
 			pp->io.end = min_t(resource_size_t,
 					   IO_SPACE_LIMIT,
 					   range.pci_addr + range.size
-					   + global_io_offset);
+					   + global_io_offset - 1);
 			pp->io_size = resource_size(&pp->io);
 			pp->io_bus_addr = range.pci_addr;
 			pp->io_base = range.cpu_addr;
-- 
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