[PATCH 0/2] ARM/PCI: Make I/O port space optional

From: Bjorn Helgaas
Date: Tue Jun 21 2016 - 13:01:49 EST


Currently we always require an I/O port resource for PCI host bridges. Even
if the bridge doesn't actually support I/O port space, we add a default I/O
resource for it.

These patches make I/O port space optional on ARM. Comments welcome.

If these look OK, I'll fold them into the series at [1], where they should
fix a resource conflict [2] in the R-Car driver.

[1] http://lkml.kernel.org/r/20160606225630.20936.77349.stgit@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
[2] http://lkml.kernel.org/r/CAMuHMdVgLfTD-BjRZ+gVKgYE8dkDZzQ6DnYtkUs+jVPthJsEdQ@xxxxxxxxxxxxxx

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Bjorn Helgaas (2):
ARM: Make PCI I/O space optional
PCI: rcar: Drop gen2 dummy I/O port region


arch/arm/include/asm/mach/pci.h | 1 +
arch/arm/kernel/bios32.c | 13 +++++++++++--
drivers/pci/host/pci-rcar-gen2.c | 11 +----------
3 files changed, 13 insertions(+), 12 deletions(-)