regulator: rn5t618: add RC5T619 PMIC support

Extend the driver to support Ricoh RC5T619.
Support the additional regulators and slightly different voltage ranges.
Signed-off-by: Pierre-Hugues Husson <phh@phh.me>
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/Kconfig

@@ -700,8 +700,8 @@ config REGULATOR_RN5T618
 	tristate "Ricoh RN5T567/618 voltage regulators"
 	depends on MFD_RN5T618
 	help
-	  Say y here to support the regulators found on Ricoh RN5T567 or
-	  RN5T618 PMIC.
+	  Say y here to support the regulators found on Ricoh RN5T567,
+	  RN5T618 or RC5T619 PMIC.
 
 config REGULATOR_RT5033
 	tristate "Richtek RT5033 Regulators"

drivers/regulator/rn5t618-regulator.c

@@ -79,6 +79,29 @@ static struct regulator_desc rn5t618_regulators[] = {
 	REG(LDORTC2, LDOEN2, BIT(5), LDORTC2DAC, 0x7f, 900000, 3500000, 25000),
 };
 
+static struct regulator_desc rc5t619_regulators[] = {
+	/* DCDC */
+	REG(DCDC1, DC1CTL, BIT(0), DC1DAC, 0xff, 600000, 3500000, 12500),
+	REG(DCDC2, DC2CTL, BIT(0), DC2DAC, 0xff, 600000, 3500000, 12500),
+	REG(DCDC3, DC3CTL, BIT(0), DC3DAC, 0xff, 600000, 3500000, 12500),
+	REG(DCDC4, DC4CTL, BIT(0), DC4DAC, 0xff, 600000, 3500000, 12500),
+	REG(DCDC5, DC5CTL, BIT(0), DC5DAC, 0xff, 600000, 3500000, 12500),
+	/* LDO */
+	REG(LDO1, LDOEN1, BIT(0), LDO1DAC, 0x7f, 900000, 3500000, 25000),
+	REG(LDO2, LDOEN1, BIT(1), LDO2DAC, 0x7f, 900000, 3500000, 25000),
+	REG(LDO3, LDOEN1, BIT(2), LDO3DAC, 0x7f, 900000, 3500000, 25000),
+	REG(LDO4, LDOEN1, BIT(3), LDO4DAC, 0x7f, 900000, 3500000, 25000),
+	REG(LDO5, LDOEN1, BIT(4), LDO5DAC, 0x7f, 600000, 3500000, 25000),
+	REG(LDO6, LDOEN1, BIT(5), LDO6DAC, 0x7f, 600000, 3500000, 25000),
+	REG(LDO7, LDOEN1, BIT(6), LDO7DAC, 0x7f, 900000, 3500000, 25000),
+	REG(LDO8, LDOEN1, BIT(7), LDO8DAC, 0x7f, 900000, 3500000, 25000),
+	REG(LDO9, LDOEN2, BIT(0), LDO9DAC, 0x7f, 900000, 3500000, 25000),
+	REG(LDO10, LDOEN2, BIT(0), LDO10DAC, 0x7f, 900000, 3500000, 25000),
+	/* LDO RTC */
+	REG(LDORTC1, LDOEN2, BIT(4), LDORTCDAC, 0x7f, 1700000, 3500000, 25000),
+	REG(LDORTC2, LDOEN2, BIT(5), LDORTC2DAC, 0x7f, 900000, 3500000, 25000),
+};
+
 static int rn5t618_regulator_probe(struct platform_device *pdev)
 {
 	struct rn5t618 *rn5t618 = dev_get_drvdata(pdev->dev.parent);
@@ -86,13 +109,20 @@ static int rn5t618_regulator_probe(struct platform_device *pdev)
 	struct regulator_dev *rdev;
 	struct regulator_desc *regulators;
 	int i;
+	int num_regulators = 0;
 
 	switch (rn5t618->variant) {
 	case RN5T567:
 		regulators = rn5t567_regulators;
+		num_regulators = ARRAY_SIZE(rn5t567_regulators);
 		break;
 	case RN5T618:
 		regulators = rn5t618_regulators;
+		num_regulators = ARRAY_SIZE(rn5t618_regulators);
+		break;
+	case RC5T619:
+		regulators = rc5t619_regulators;
+		num_regulators = ARRAY_SIZE(rc5t619_regulators);
 		break;
 	default:
 		return -EINVAL;
@@ -101,10 +131,7 @@ static int rn5t618_regulator_probe(struct platform_device *pdev)
 	config.dev = pdev->dev.parent;
 	config.regmap = rn5t618->regmap;
 
-	for (i = 0; i < RN5T618_REG_NUM; i++) {
-		if (!regulators[i].name)
-			continue;
-
+	for (i = 0; i < num_regulators; i++) {
 		rdev = devm_regulator_register(&pdev->dev,
 					       &regulators[i],
 					       &config);

include/linux/mfd/rn5t618.h

@@ -226,11 +226,17 @@ enum {
 	RN5T618_DCDC2,
 	RN5T618_DCDC3,
 	RN5T618_DCDC4,
+	RN5T618_DCDC5,
 	RN5T618_LDO1,
 	RN5T618_LDO2,
 	RN5T618_LDO3,
 	RN5T618_LDO4,
 	RN5T618_LDO5,
+	RN5T618_LDO6,
+	RN5T618_LDO7,
+	RN5T618_LDO8,
+	RN5T618_LDO9,
+	RN5T618_LDO10,
 	RN5T618_LDORTC1,
 	RN5T618_LDORTC2,
 	RN5T618_REG_NUM,