Since no single Mediatek chip use code for PINCTRL_MTK and code for
PINCTRL_MTK_MOORE/PINCTRL_MTK_PARIS simultaneously, it is better to use
different config to determine if related code will be built or not on
building non-generic kernel.

Add kernel config PINCTRL_MTK_V2 selected by either PINCTRL_MTK_MOORE
or PINCTRL_MTK_PARIS.
Use PINCTRL_MTK and PINCTRL_MTK_V2 to control building of
drivers/pinctrl/medaitek/.
Remove selection of EINT_MTK from PINCTRL_MTK since code for EINT_MTK is
only related to PINCTRL_MTK_MOORE/PINCTRL_MTK_PARIS, i.e. PINCTL_MTK_V2.

---
 drivers/pinctrl/Makefile         |  3 ++-
 drivers/pinctrl/mediatek/Kconfig | 15 ++++++++++++---
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index 712184b..fcee0e0 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -65,6 +65,7 @@ obj-$(CONFIG_PINCTRL_SUNXI)   += sunxi/
 obj-y                          += ti/
 obj-$(CONFIG_PINCTRL_UNIPHIER) += uniphier/
 obj-$(CONFIG_ARCH_VT8500)      += vt8500/
-obj-y                          += mediatek/
+obj-$(CONFIG_PINCTRL_MTK)      += mediatek/
+obj-$(CONFIG_PINCTRL_MTK_V2)   += mediatek/
 obj-$(CONFIG_PINCTRL_ZX)       += zte/
 obj-y                          += cirrus/
diff --git a/drivers/pinctrl/mediatek/Kconfig b/drivers/pinctrl/mediatek/Kconfig
index a005cbc..5e26462 100644
--- a/drivers/pinctrl/mediatek/Kconfig
+++ b/drivers/pinctrl/mediatek/Kconfig
@@ -2,10 +2,15 @@ menu "MediaTek pinctrl drivers"
        depends on ARCH_MEDIATEK || COMPILE_TEST
 
 config EINT_MTK
-       bool "MediaTek External Interrupt Support"
-       depends on PINCTRL_MTK || PINCTRL_MTK_MOORE || PINCTRL_MTK_PARIS || 
COMPILE_TEST
+       bool "MediaTek External Interrupt driver that is based on 
PINCTRL_MTK_V2"
+       depends on PINCTRL_MTK_MOORE || PINCTRL_MTK_PARIS || COMPILE_TEST
        select GPIOLIB
        select IRQ_DOMAIN
+       help
+         Say yes here to enable support for MediaTek External Interrupt
+         (EINT) driver based on PINCTRL_MTK version 2.
+         This driver is combined with MediaTek Pinctrl driver version 2
+         so PINCTRL_MTK_V2 shall be set first.
 
 config PINCTRL_MTK
        bool
@@ -13,9 +18,11 @@ config PINCTRL_MTK
        select PINMUX
        select GENERIC_PINCONF
        select GPIOLIB
-       select EINT_MTK
        select OF_GPIO
 
+config PINCTRL_MTK_V2
+       bool "MediaTek Pinctrl Support V2"
+
 config PINCTRL_MTK_MOORE
        bool
        depends on OF
@@ -24,6 +31,7 @@ config PINCTRL_MTK_MOORE
        select GENERIC_PINMUX_FUNCTIONS
        select GPIOLIB
        select OF_GPIO
+       select PINCTRL_MTK_V2
 
 config PINCTRL_MTK_PARIS
        bool
@@ -33,6 +41,7 @@ config PINCTRL_MTK_PARIS
        select GPIOLIB
        select EINT_MTK
        select OF_GPIO
+       select PINCTRL_MTK_V2
 
 # For ARMv7 SoCs
 config PINCTRL_MT2701
-- 
1.8.1.1.dirty

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