regulator: Add NXP PF8X00 regulator driver

Add NXP PF8100/PF8121A/PF8200 regulator driver.

PF8100/PF8121A/PF8200 is PMIC designed for highperformance
consumer applications. It features seven high efficiency buck,
four linear and one vsnvs regulators.

Tested in Engicam i.Core MX8M Mini SOM platform boards.
Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Link: https://lore.kernel.org/r/20201130112329.104614-2-jagan@amarulasolutions.comSigned-off-by: Mark Brown <broonie@kernel.org>

MAINTAINERS

@@ -12559,6 +12559,12 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/display/imx/nxp,imx8mq-dcss.yaml
 F:	drivers/gpu/drm/imx/dcss/
 
+NXP PF8100/PF8121A/PF8200 PMIC REGULATOR DEVICE DRIVER
+M:	Jagan Teki <jagan@amarulasolutions.com>
+S:	Maintained
+F:	Documentation/devicetree/bindings/regulator/nxp,pf8x00-regulator.yaml
+F:	drivers/regulator/pf8x00-regulator.c
+
 NXP PTN5150A CC LOGIC AND EXTCON DRIVER
 M:	Krzysztof Kozlowski <krzk@kernel.org>
 L:	linux-kernel@vger.kernel.org

drivers/regulator/Kconfig

@@ -812,6 +812,14 @@ config REGULATOR_PCF50633
 	 Say Y here to support the voltage regulators and converters
 	 on PCF50633
 
+config REGULATOR_PF8X00
+	tristate "NXP PF8100/PF8121A/PF8200 regulator driver"
+	depends on I2C && OF
+	select REGMAP_I2C
+	help
+	  Say y here to support the regulators found on the NXP
+	  PF8100/PF8121A/PF8200 PMIC.
+
 config REGULATOR_PFUZE100
 	tristate "Freescale PFUZE100/200/3000/3001 regulator driver"
 	depends on I2C

drivers/regulator/Makefile

@@ -102,6 +102,7 @@ obj-$(CONFIG_REGULATOR_QCOM_SPMI) += qcom_spmi-regulator.o
 obj-$(CONFIG_REGULATOR_QCOM_USB_VBUS) += qcom_usb_vbus-regulator.o
 obj-$(CONFIG_REGULATOR_PALMAS) += palmas-regulator.o
 obj-$(CONFIG_REGULATOR_PCA9450) += pca9450-regulator.o
+obj-$(CONFIG_REGULATOR_PF8X00) += pf8x00-regulator.o
 obj-$(CONFIG_REGULATOR_PFUZE100) += pfuze100-regulator.o
 obj-$(CONFIG_REGULATOR_PV88060) += pv88060-regulator.o
 obj-$(CONFIG_REGULATOR_PV88080) += pv88080-regulator.o