spmi: mediatek: Add support for MT6873/8192

Add spmi support for MT6873/8192.
Refine indent in spmi-mtk-pmif.c.

Link: https://lore.kernel.org/r/20211119034613.32489-4-james.lo@mediatek.comAcked-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: James Lo <james.lo@mediatek.com>
Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20211216190812.1574801-5-sboyd@kernel.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/spmi/Kconfig

@@ -34,4 +34,15 @@ config SPMI_MSM_PMIC_ARB
 	  This is required for communicating with Qualcomm PMICs and
 	  other devices that have the SPMI interface.
 
+config SPMI_MTK_PMIF
+	tristate "Mediatek SPMI Controller (PMIC Arbiter)"
+	depends on ARCH_MEDIATEK || COMPILE_TEST
+	help
+	  If you say yes to this option, support will be included for the
+	  built-in SPMI PMIC Arbiter interface on Mediatek family
+	  processors.
+
+	  This is required for communicating with Mediatek PMICs and
+	  other devices that have the SPMI interface.
+
 endif

drivers/spmi/Makefile

@@ -6,3 +6,4 @@ obj-$(CONFIG_SPMI)	+= spmi.o
 
 obj-$(CONFIG_SPMI_HISI3670)	+= hisi-spmi-controller.o
 obj-$(CONFIG_SPMI_MSM_PMIC_ARB)	+= spmi-pmic-arb.o
+obj-$(CONFIG_SPMI_MTK_PMIF)	+= spmi-mtk-pmif.o