realtek: rtl839x: Enable RTL8231 MFD driver

Enable the RTL8231 MFD core driver, as well as the pinctrl/gpio driver
to allow RTL839x devices to use it.

Signed-off-by: Sander Vanheule <[email protected]>
(cherry picked from commit fd5797b7ce6856539ec0f88b25a766fc2ce00c19)

target/linux/realtek/rtl839x/config-6.6

@@ -87,6 +87,7 @@ CONFIG_GPIO_GENERIC=y
 CONFIG_GPIO_PCA953X=y
 CONFIG_GPIO_PCA953X_IRQ=y
 CONFIG_GPIO_REALTEK_OTTO=y
+CONFIG_GPIO_REGMAP=y
 CONFIG_GPIO_RTL8231=y
 CONFIG_GPIO_WATCHDOG=y
 # CONFIG_GPIO_WATCHDOG_ARCH_INITCALL is not set
@@ -113,6 +114,7 @@ CONFIG_IRQ_MIPS_CPU=y
 CONFIG_IRQ_WORK=y
 CONFIG_JFFS2_ZLIB=y
 CONFIG_LEDS_GPIO=y
+# CONFIG_LEDS_RTL8231 is not set
 CONFIG_LIBFDT=y
 CONFIG_LOCK_DEBUGGING_SUPPORT=y
 CONFIG_MACH_REALTEK_RTL=y
@@ -124,7 +126,8 @@ CONFIG_MDIO_I2C=y
 CONFIG_MDIO_REALTEK_OTTO_AUX=y
 CONFIG_MDIO_SMBUS=y
 CONFIG_MEMFD_CREATE=y
-# CONFIG_MFD_RTL8231 is not set
+CONFIG_MFD_CORE=y
+CONFIG_MFD_RTL8231=y
 CONFIG_MFD_SYSCON=y
 CONFIG_MIGRATION=y
 CONFIG_MIPS=y
@@ -187,6 +190,7 @@ CONFIG_PGTABLE_LEVELS=2
 CONFIG_PHYLIB=y
 CONFIG_PHYLINK=y
 CONFIG_PINCTRL=y
+CONFIG_PINCTRL_RTL8231=y
 CONFIG_PM_OPP=y
 CONFIG_POWER_RESET=y
 CONFIG_POWER_RESET_GPIO_RESTART=y
@@ -201,6 +205,7 @@ CONFIG_REALTEK_PHY=y
 CONFIG_REALTEK_SOC_PHY=y
 CONFIG_REGMAP=y
 CONFIG_REGMAP_I2C=y
+CONFIG_REGMAP_MDIO=y
 CONFIG_REGMAP_MMIO=y
 CONFIG_RESET_CONTROLLER=y
 CONFIG_RFS_ACCEL=y