On Tue, Jan 24, 2017 at 03:05:24PM +0800, zhichang.yuan wrote:

The low-pin-count(LPC) interface of Hip06/Hip07 accesses the peripherals in
I/O port addresses. This patch implements the LPC host controller driver which
perform the I/O operations on the underlying hardware.
We don't want to touch those existing peripherals' driver, such as ipmi-bt. So
this driver applies the indirect-IO introduced in the previous patch after
registering an indirect-IO node to the indirect-IO devices list which will be
searched in the I/O accessors.
As the I/O translations for LPC children depend on the host I/O registration,
we should ensure the host I/O registration is finished before all the LPC
children scanning. That is why an arch_init() hook was added in this patch.

Signed-off-by: zhichang.yuan <redacted>
Signed-off-by: Gabriele Paoloni <redacted>
---
 .../arm/hisilicon/hisilicon-low-pin-count.txt      |  33 ++
 MAINTAINERS                                        |   9 +
 arch/arm64/boot/dts/hisilicon/hip06-d03.dts        |   4 +
 arch/arm64/boot/dts/hisilicon/hip06.dtsi           |  14 +

Acked-by: Rob Herring <robh@kernel.org>

 drivers/bus/Kconfig                                |   8 +
 drivers/bus/Makefile                               |   1 +
 drivers/bus/hisi_lpc.c                             | 599 +++++++++++++++++++++
 7 files changed, 668 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/hisilicon/hisilicon-low-pin-count.txt
 create mode 100644 drivers/bus/hisi_lpc.c