staging: spmi: hisi-spmi-controller: add it to the building system

Now that the driver was ported to upstream, add it as a
SPMI controller.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/5315331cf048cc72844080e5e8668c0dbac48f1f.1597647359.git.mchehab+huawei@kernel.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/Kconfig

@@ -116,4 +116,6 @@ source "drivers/staging/qlge/Kconfig"
 
 source "drivers/staging/wfx/Kconfig"
 
+source "drivers/staging/hikey9xx/Kconfig"
+
 endif # STAGING

drivers/staging/Makefile

@@ -48,3 +48,4 @@ obj-$(CONFIG_FIELDBUS_DEV)     += fieldbus/
 obj-$(CONFIG_KPC2000)		+= kpc2000/
 obj-$(CONFIG_QLGE)		+= qlge/
 obj-$(CONFIG_WFX)		+= wfx/
+obj-y				+= hikey9xx/

drivers/staging/hikey9xx/Kconfig

+# SPDX-License-Identifier: GPL-2.0
+
+config SPMI_HISI3670
+	tristate "Hisilicon 3670 SPMI Controller"
+	select IRQ_DOMAIN_HIERARCHY
+	depends on HAS_IOMEM
+	help
+	  If you say yes to this option, support will be included for the
+	  built-in SPMI PMIC Arbiter interface on Hisilicon 3670
+	  processors.

drivers/staging/hikey9xx/Makefile

+# SPDX-License-Identifier: GPL-2.0
+
+obj-$(CONFIG_SPMI_HISI3670) += hisi-spmi-controller.o