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authorZhichang Yuan <yuanzhichang@hisilicon.com>2018-03-21 17:23:02 -0500
committerBjorn Helgaas <helgaas@kernel.org>2018-04-04 08:42:48 -0500
commitadf38bb0b5956ab5469acb1ca981a9287c7ad1d8 (patch)
treec08d2e7f88c69883ae7aff65647e0c9d9589e928 /drivers/bus/Makefile
parent65af618d2c559f8eb19d80d03a23029651a59de4 (diff)
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/Makefile1
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