pinctrl: sunxi: Fix recursive dependency

Fix the following configuration error:
drivers/pinctrl/sunxi/Kconfig:3:error: recursive dependency detected!
drivers/pinctrl/sunxi/Kconfig:3:	symbol PINCTRL_SUNXI is selected by PINCTRL_SUN4I_A10
drivers/pinctrl/sunxi/Kconfig:9:	symbol PINCTRL_SUN4I_A10 default value contains PINCTRL_SUNXI

Add a new intermedia PINCTRL_SUNXI_COMMON, that superseeds the PINCTRL_SUNXI
one.

We still need to keep PINCTRL_SUNXI at the moment in order to preserve
bisectability. Indeed, during that merge window, we also introduced the
MACH_SUN* symbols. Since it's going through different trees, we can't rely on
the fact that the options will be there, while ARCH_SUNXI still select
PINCTRL_SUNXI.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/sunxi/Kconfig

@@ -2,31 +2,34 @@ if ARCH_SUNXI
 
 config PINCTRL_SUNXI
 	bool
+
+config PINCTRL_SUNXI_COMMON
+	bool
 	select PINMUX
 	select GENERIC_PINCONF
 
 config PINCTRL_SUN4I_A10
-       def_bool PINCTRL_SUNXI || MACH_SUN4I
-       select PINCTRL_SUNXI
+	def_bool PINCTRL_SUNXI || MACH_SUN4I
+	select PINCTRL_SUNXI_COMMON
 
 config PINCTRL_SUN5I_A10S
-       def_bool PINCTRL_SUNXI || MACH_SUN5I
-       select PINCTRL_SUNXI
+	def_bool PINCTRL_SUNXI || MACH_SUN5I
+	select PINCTRL_SUNXI_COMMON
 
 config PINCTRL_SUN5I_A13
-       def_bool PINCTRL_SUNXI || MACH_SUN5I
-       select PINCTRL_SUNXI
+	def_bool PINCTRL_SUNXI || MACH_SUN5I
+	select PINCTRL_SUNXI_COMMON
 
 config PINCTRL_SUN6I_A31
-       def_bool PINCTRL_SUNXI || MACH_SUN6I
-       select PINCTRL_SUNXI
+	def_bool PINCTRL_SUNXI || MACH_SUN6I
+	select PINCTRL_SUNXI_COMMON
 
 config PINCTRL_SUN6I_A31_R
-       def_bool PINCTRL_SUNXI || MACH_SUN6I
-       select PINCTRL_SUNXI
+	def_bool PINCTRL_SUNXI || MACH_SUN6I
+	select PINCTRL_SUNXI_COMMON
 
 config PINCTRL_SUN7I_A20
-       def_bool PINCTRL_SUNXI || MACH_SUN7I
-       select PINCTRL_SUNXI
+	def_bool PINCTRL_SUNXI || MACH_SUN7I
+	select PINCTRL_SUNXI_COMMON
 
 endif

drivers/pinctrl/sunxi/Makefile

@@ -1,5 +1,5 @@
 # Core
-obj-$(CONFIG_PINCTRL_SUNXI)	+= pinctrl-sunxi.o
+obj-$(CONFIG_PINCTRL_SUNXI_COMMON)	+= pinctrl-sunxi.o
 
 # SoC Drivers
 obj-$(CONFIG_PINCTRL_SUN4I_A10)		+= pinctrl-sun4i-a10.o