From 5dbb4c6167229c8d4f528e8ec26699a7305000a3 Mon Sep 17 00:00:00 2001
From: Zhichang Yuan <yuanzhichang@hisilicon.com>
Date: Fri, 24 Apr 2015 17:05:09 +0800
Subject: [PATCH] of/pci: Fix pci_address_to_pio() conversion of CPU address to
 I/O port

41f8bba7f555 ("of/pci: Add pci_register_io_range() and
pci_pio_to_address()") added support for systems with several I/O ranges
described by OF bindings.  It modified pci_address_to_pio() look up the
io_range for a given CPU physical address, but the conversion was wrong.

Fix the conversion of address to I/O port.

[bhelgaas: changelog]
Fixes: 41f8bba7f555 ("of/pci: Add pci_register_io_range() and pci_pio_to_address()")
Signed-off-by: Zhichang Yuan <yuanzhichang@hisilicon.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
CC: stable@vger.kernel.org	# v3.18+
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