pinctrl: UniPhier: add UniPhier PH1-Pro4 pinctrl driver

Add pin configuration and pinmux support for UniPhier PH1-Pro4 SoC.

Changes in v2:
  - sort groups and funcs alphabetically
  - add i2c pin-mux settings
  - sort members of platform_driver
  - change to tristate
  - add THIS_MODULE to pinctrl_desc
  - use module_platform_driver

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/uniphier/Kconfig

@@ -9,4 +9,8 @@ config PINCTRL_UNIPHIER_PH1_LD4
 	tristate "UniPhier PH1-LD4 SoC pinctrl driver"
 	select PINCTRL_UNIPHIER_CORE
 
+config PINCTRL_UNIPHIER_PH1_PRO4
+	tristate "UniPhier PH1-Pro4 SoC pinctrl driver"
+	select PINCTRL_UNIPHIER_CORE
+
 endif

drivers/pinctrl/uniphier/Makefile

@@ -1,3 +1,4 @@
 obj-$(CONFIG_PINCTRL_UNIPHIER_CORE)		+= pinctrl-uniphier-core.o
 
 obj-$(CONFIG_PINCTRL_UNIPHIER_PH1_LD4)		+= pinctrl-ph1-ld4.o
+obj-$(CONFIG_PINCTRL_UNIPHIER_PH1_PRO4)		+= pinctrl-ph1-pro4.o