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| author |   Zhichang Yuan <yuanzhichang@hisilicon.com> | 2018-03-21 17:23:02 -0500 |
|---|---|---|
| committer |   Bjorn Helgaas <helgaas@kernel.org> | 2018-04-04 08:42:48 -0500 |
| commit | adf38bb0b5956ab5469acb1ca981a9287c7ad1d8 (patch) | |
| tree | c08d2e7f88c69883ae7aff65647e0c9d9589e928 /drivers/bus/Makefile | |
| parent | of: Add missing I/O range exception for indirect-IO devices (diff) | |
| download | linux-dev-adf38bb0b5956ab5469acb1ca981a9287c7ad1d8.tar.xz linux-dev-adf38bb0b5956ab5469acb1ca981a9287c7ad1d8.zip | |
HISI LPC: Support the LPC host on Hip06/Hip07 with DT bindings
The low-pin-count (LPC) interface of Hip06/Hip07 accesses I/O port space of
peripherals.
Implement the LPC host controller driver which performs the I/O operations
on the underlying hardware. We don't want to touch existing drivers 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 by the I/O accessors to retrieve the
host-local I/O port.
The driver config is set as a bool instead of a tristate. The reason here
is that, by the very nature of the driver providing a logical PIO range, it
does not make sense to have this driver as a loadable module. Another more
specific reason is that the Huawei D03 board which includes Hip06 SoC
requires the LPC bus for UART console, so should be built in.
Tested-by: dann frazier <dann.frazier@canonical.com>
Signed-off-by: Zou Rongrong <zourongrong@huawei.com>
Signed-off-by: Zhichang Yuan <yuanzhichang@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Rob Herring <robh@kernel.org> # dts part
Diffstat (limited to 'drivers/bus/Makefile')
| -rw-r--r-- | drivers/bus/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/bus/Makefile b/drivers/bus/Makefile index 9bcd0bf3954b..50bb12a971a0 100644 --- a/drivers/bus/Makefile +++ b/drivers/bus/Makefile @@ -7,6 +7,7 @@ obj-$(CONFIG_ARM_CCI) += arm-cci.o obj-$(CONFIG_ARM_CCN) += arm-ccn.o +obj-$(CONFIG_HISILICON_LPC) += hisi_lpc.o obj-$(CONFIG_BRCMSTB_GISB_ARB) += brcmstb_gisb.o obj-$(CONFIG_IMX_WEIM) += imx-weim.o obj-$(CONFIG_MIPS_CDMM) += mips_cdmm.o |