regulator-add-fan53200-driver(:1)

Original-Subject: regulator: add fan53200 regulator driver for Tinekr Board 2
1. Add fan53200 regulator support for vdd_cpu_b & vdd_gpu
2. By Tinker2 HW design, Vsel gpio pin polarity was reversed, switch
   sleep_reg & vol_reg at fan53200_voltages_setup_fairchild
3. Use vsel0 as suspend source, vsel1 as normal source

Signed-off-by: Rock Shen <rock_shen@asus.com>
X-Armbian: Patch-File: regulator-add-fan53200-driver
X-Armbian: Patch-File-Counter: 1
X-Armbian: Patch-Rel-Directory: patch/kernel/archive/rockchip64-6.1
X-Armbian: Patch-Type: kernel
X-Armbian: Patch-Root-Type: core
X-Armbian: Patch-Sub-Type: common
X-Armbian: Original-Subject: regulator: add fan53200 regulator driver for Tinekr Board 2

arch/arm64/configs/defconfig

@@ -660,6 +660,7 @@ CONFIG_REGULATOR_AXP20X=y
 CONFIG_REGULATOR_BD718XX=y
 CONFIG_REGULATOR_BD9571MWV=y
 CONFIG_REGULATOR_FAN53555=y
+CONFIG_REGULATOR_FAN53200=y
 CONFIG_REGULATOR_GPIO=y
 CONFIG_REGULATOR_HI6421V530=y
 CONFIG_REGULATOR_HI655X=y

drivers/regulator/Kconfig

@@ -385,6 +385,17 @@ config REGULATOR_FAN53880
 	  (PMIC), it is controlled by I2C and provides one BUCK, one BOOST
 	  and four LDO outputs.
 
+config REGULATOR_FAN53200
+	tristate "Fairchild FAN53200 Regulator"
+	depends on I2C
+	select REGMAP_I2C
+	help
+	  This driver supports Fairchild FAN53200 Digitally Programmable
+	  TinyBuck Regulator. The FAN53200 is a step-down switching voltage
+	  regulator that delivers a digitally programmable output from an
+	  input voltage supply of 2.5V to 5.5V. The output voltage is
+	  programmed through an I2C interface.
+
 config REGULATOR_GPIO
 	tristate "GPIO regulator support"
 	depends on GPIOLIB || COMPILE_TEST

drivers/regulator/Makefile

@@ -46,6 +46,7 @@ obj-$(CONFIG_REGULATOR_DBX500_PRCMU) += dbx500-prcmu.o
 obj-$(CONFIG_REGULATOR_DB8500_PRCMU) += db8500-prcmu.o
 obj-$(CONFIG_REGULATOR_FAN53555) += fan53555.o
 obj-$(CONFIG_REGULATOR_FAN53880) += fan53880.o
+obj-$(CONFIG_REGULATOR_FAN53555) += fan53200.o
 obj-$(CONFIG_REGULATOR_GPIO) += gpio-regulator.o
 obj-$(CONFIG_REGULATOR_HI6421) += hi6421-regulator.o
 obj-$(CONFIG_REGULATOR_HI6421V530) += hi6421v530-regulator.o