drivers: mfd: add pca9422 drivers(mfd+charger+regulator)

Add drivers for NXP PCA9422 PMIC that includes charger and regulators.

Signed-off-by: Clark Kim <[email protected]>

Author: taieup-kim

drivers/charger/CMakeLists.txt

@@ -12,3 +12,4 @@ zephyr_library_sources_ifdef(CONFIG_CHARGER_PF1550 charger_pf1550.c)
 zephyr_library_sources_ifdef(CONFIG_SBS_CHARGER sbs_charger.c)
 zephyr_library_sources_ifdef(CONFIG_USERSPACE charger_handlers.c)
 zephyr_library_sources_ifdef(CONFIG_EMUL_SBS_CHARGER emul_sbs_charger.c)
+zephyr_library_sources_ifdef(CONFIG_CHARGER_PCA9422 charger_pca9422.c)

drivers/charger/Kconfig

@@ -58,5 +58,6 @@ source "drivers/charger/Kconfig.bq25180"
 source "drivers/charger/Kconfig.bq25713"
 source "drivers/charger/Kconfig.max20335"
 source "drivers/charger/Kconfig.pf1550"
+source "drivers/charger/Kconfig.pca9422"
 
 endif # CHARGER

drivers/charger/Kconfig.pca9422

@@ -0,0 +1,11 @@
+# Copyright 2025 NXP
+# SPDX-License-Identifier: Apache-2.0
+
+config CHARGER_PCA9422
+	bool "PCA9422 battery charger driver"
+	default y
+	depends on DT_HAS_NXP_PCA9422_CHARGER_ENABLED
+	select I2C
+	select MFD
+	help
+	  Enable the PCA9422 battery charger driver.