pinctrl: pinctrl-oxnas: remove obsolete pinctrl driver

Due to lack of maintenance and stall of development for a few years now,
and since no new features will ever be added upstream, remove support
for OX810 and OX820 pinctrl & gpio.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Daniel Golle <daniel@makrotopia.org>
Acked-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230814-topic-oxnas-upstream-remove-v3-1-04a0c5cdda52@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/Kconfig

@@ -355,17 +355,6 @@ config PINCTRL_OCELOT
 
 	  If conpiled as a module, the module name will be pinctrl-ocelot.
 
-config PINCTRL_OXNAS
-	bool
-	depends on OF
-	select PINMUX
-	select PINCONF
-	select GENERIC_PINCONF
-	select GPIOLIB
-	select OF_GPIO
-	select GPIOLIB_IRQCHIP
-	select MFD_SYSCON
-
 config PINCTRL_PALMAS
 	tristate "Pinctrl driver for the PALMAS Series MFD devices"
 	depends on OF && MFD_PALMAS

drivers/pinctrl/Makefile

@@ -38,7 +38,6 @@ obj-$(CONFIG_PINCTRL_MCP23S08)	+= pinctrl-mcp23s08.o
 obj-$(CONFIG_PINCTRL_MICROCHIP_SGPIO)	+= pinctrl-microchip-sgpio.o
 obj-$(CONFIG_PINCTRL_MLXBF3)	+= pinctrl-mlxbf3.o
 obj-$(CONFIG_PINCTRL_OCELOT)	+= pinctrl-ocelot.o
-obj-$(CONFIG_PINCTRL_OXNAS)	+= pinctrl-oxnas.o
 obj-$(CONFIG_PINCTRL_PALMAS)	+= pinctrl-palmas.o
 obj-$(CONFIG_PINCTRL_PIC32)	+= pinctrl-pic32.o
 obj-$(CONFIG_PINCTRL_PISTACHIO)	+= pinctrl-pistachio.o