Merging upstream version 6.10.3.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

23 files changed, 1083 insertions, 147 deletions

diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 7db0a29b5b..d333be2bea 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -1415,6 +1415,14 @@ config REGULATOR_STW481X_VMMC
 	  This driver supports the internal VMMC regulator in the STw481x
 	  PMIC chips.
 
+config REGULATOR_SUN20I
+	tristate "Allwinner D1 internal LDOs"
+	depends on ARCH_SUNXI || COMPILE_TEST
+	select MFD_SYSCON
+	default ARCH_SUNXI
+	help
+	  This driver supports the internal LDOs in the Allwinner D1 SoC.
+
 config REGULATOR_SY7636A
 	tristate "Silergy SY7636A voltage regulator"
 	depends on MFD_SY7636A
@@ -1563,13 +1571,15 @@ config REGULATOR_TPS6594
 	depends on MFD_TPS6594 && OF
 	default MFD_TPS6594
 	help
-	  This driver supports TPS6594 voltage regulator chips.
+	  This driver supports TPS6594 series and TPS65224 voltage regulator chips.
 	  TPS6594 series of PMICs have 5 BUCKs and 4 LDOs
 	  voltage regulators.
 	  BUCKs 1,2,3,4 can be used in single phase or multiphase mode.
 	  Part number defines which single or multiphase mode is i used.
 	  It supports software based voltage control
 	  for different voltage domains.
+	  TPS65224 PMIC has 4 BUCKs and 3 LDOs. BUCK12 can be used in dual phase.
+	  All BUCKs and LDOs volatge can be controlled through software.
 
 config REGULATOR_TPS6524X
 	tristate "TI TPS6524X Power regulators"
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 46fb569e6b..ba15fa5f30 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -163,6 +163,7 @@ obj-$(CONFIG_REGULATOR_STM32_VREFBUF) += stm32-vrefbuf.o
 obj-$(CONFIG_REGULATOR_STM32_PWR) += stm32-pwr.o
 obj-$(CONFIG_REGULATOR_STPMIC1) += stpmic1_regulator.o
 obj-$(CONFIG_REGULATOR_STW481X_VMMC) += stw481x-vmmc.o
+obj-$(CONFIG_REGULATOR_SUN20I) += sun20i-regulator.o
 obj-$(CONFIG_REGULATOR_SY7636A) += sy7636a-regulator.o
 obj-$(CONFIG_REGULATOR_SY8106A) += sy8106a-regulator.o
 obj-$(CONFIG_REGULATOR_SY8824X) += sy8824x.o
diff --git a/drivers/regulator/axp20x-regulator.c b/drivers/regulator/axp20x-regulator.c
index c657820b0b..f3c447ecdc 100644
--- a/drivers/regulator/axp20x-regulator.c
+++ b/drivers/regulator/axp20x-regulator.c
@@ -138,6 +138,12 @@
 #define AXP313A_DCDC_V_OUT_MASK		GENMASK(6, 0)
 #define AXP313A_LDO_V_OUT_MASK		GENMASK(4, 0)
 
+#define AXP717_DCDC1_NUM_VOLTAGES	88
+#define AXP717_DCDC2_NUM_VOLTAGES	107
+#define AXP717_DCDC3_NUM_VOLTAGES	103
+#define AXP717_DCDC_V_OUT_MASK		GENMASK(6, 0)
+#define AXP717_LDO_V_OUT_MASK		GENMASK(4, 0)
+
 #define AXP803_PWR_OUT_DCDC1_MASK	BIT_MASK(0)
 #define AXP803_PWR_OUT_DCDC2_MASK	BIT_MASK(1)
 #define AXP803_PWR_OUT_DCDC3_MASK	BIT_MASK(2)
@@ -733,25 +739,103 @@ static const struct linear_range axp313a_dcdc3_ranges[] = {
 static const struct regulator_desc axp313a_regulators[] = {
 	AXP_DESC_RANGES(AXP313A, DCDC1, "dcdc1", "vin1",
 			axp313a_dcdc1_ranges, AXP313A_DCDC1_NUM_VOLTAGES,
-			AXP313A_DCDC1_CONRTOL, AXP313A_DCDC_V_OUT_MASK,
+			AXP313A_DCDC1_CONTROL, AXP313A_DCDC_V_OUT_MASK,
 			AXP313A_OUTPUT_CONTROL, BIT(0)),
 	AXP_DESC_RANGES(AXP313A, DCDC2, "dcdc2", "vin2",
 			axp313a_dcdc2_ranges, AXP313A_DCDC23_NUM_VOLTAGES,
-			AXP313A_DCDC2_CONRTOL, AXP313A_DCDC_V_OUT_MASK,
+			AXP313A_DCDC2_CONTROL, AXP313A_DCDC_V_OUT_MASK,
 			AXP313A_OUTPUT_CONTROL, BIT(1)),
 	AXP_DESC_RANGES(AXP313A, DCDC3, "dcdc3", "vin3",
 			axp313a_dcdc3_ranges, AXP313A_DCDC23_NUM_VOLTAGES,
-			AXP313A_DCDC3_CONRTOL, AXP313A_DCDC_V_OUT_MASK,
+			AXP313A_DCDC3_CONTROL, AXP313A_DCDC_V_OUT_MASK,
 			AXP313A_OUTPUT_CONTROL, BIT(2)),
 	AXP_DESC(AXP313A, ALDO1, "aldo1", "vin1", 500, 3500, 100,
-		 AXP313A_ALDO1_CONRTOL, AXP313A_LDO_V_OUT_MASK,
+		 AXP313A_ALDO1_CONTROL, AXP313A_LDO_V_OUT_MASK,
 		 AXP313A_OUTPUT_CONTROL, BIT(3)),
 	AXP_DESC(AXP313A, DLDO1, "dldo1", "vin1", 500, 3500, 100,
-		 AXP313A_DLDO1_CONRTOL, AXP313A_LDO_V_OUT_MASK,
+		 AXP313A_DLDO1_CONTROL, AXP313A_LDO_V_OUT_MASK,
 		 AXP313A_OUTPUT_CONTROL, BIT(4)),
 	AXP_DESC_FIXED(AXP313A, RTC_LDO, "rtc-ldo", "vin1", 1800),
 };
 
+static const struct linear_range axp717_dcdc1_ranges[] = {
+	REGULATOR_LINEAR_RANGE(500000,   0, 70, 10000),
+	REGULATOR_LINEAR_RANGE(1220000, 71, 87, 20000),
+};
+
+/*
+ * The manual says that the last voltage is 3.4V, encoded as 0b1101011 (107),
+ * but every other method proves that this is wrong, so it's really 106 that
+ * programs the final 3.4V.
+ */
+static const struct linear_range axp717_dcdc2_ranges[] = {
+	REGULATOR_LINEAR_RANGE(500000,   0,  70,  10000),
+	REGULATOR_LINEAR_RANGE(1220000, 71,  87,  20000),
+	REGULATOR_LINEAR_RANGE(1600000, 88, 106, 100000),
+};
+
+static const struct linear_range axp717_dcdc3_ranges[] = {
+	REGULATOR_LINEAR_RANGE(500000,   0,  70, 10000),
+	REGULATOR_LINEAR_RANGE(1220000, 71, 102, 20000),
+};
+
+static const struct regulator_desc axp717_regulators[] = {
+	AXP_DESC_RANGES(AXP717, DCDC1, "dcdc1", "vin1",
+			axp717_dcdc1_ranges, AXP717_DCDC1_NUM_VOLTAGES,
+			AXP717_DCDC1_CONTROL, AXP717_DCDC_V_OUT_MASK,
+			AXP717_DCDC_OUTPUT_CONTROL, BIT(0)),
+	AXP_DESC_RANGES(AXP717, DCDC2, "dcdc2", "vin2",
+			axp717_dcdc2_ranges, AXP717_DCDC2_NUM_VOLTAGES,
+			AXP717_DCDC2_CONTROL, AXP717_DCDC_V_OUT_MASK,
+			AXP717_DCDC_OUTPUT_CONTROL, BIT(1)),
+	AXP_DESC_RANGES(AXP717, DCDC3, "dcdc3", "vin3",
+			axp717_dcdc3_ranges, AXP717_DCDC3_NUM_VOLTAGES,
+			AXP717_DCDC3_CONTROL, AXP717_DCDC_V_OUT_MASK,
+			AXP717_DCDC_OUTPUT_CONTROL, BIT(2)),
+	AXP_DESC(AXP717, DCDC4, "dcdc4", "vin4", 1000, 3700, 100,
+		 AXP717_DCDC4_CONTROL, AXP717_DCDC_V_OUT_MASK,
+		 AXP717_DCDC_OUTPUT_CONTROL, BIT(3)),
+	AXP_DESC(AXP717, ALDO1, "aldo1", "aldoin", 500, 3500, 100,
+		 AXP717_ALDO1_CONTROL, AXP717_LDO_V_OUT_MASK,
+		 AXP717_LDO0_OUTPUT_CONTROL, BIT(0)),
+	AXP_DESC(AXP717, ALDO2, "aldo2", "aldoin", 500, 3500, 100,
+		 AXP717_ALDO2_CONTROL, AXP717_LDO_V_OUT_MASK,
+		 AXP717_LDO0_OUTPUT_CONTROL, BIT(1)),
+	AXP_DESC(AXP717, ALDO3, "aldo3", "aldoin", 500, 3500, 100,
+		 AXP717_ALDO3_CONTROL, AXP717_LDO_V_OUT_MASK,
+		 AXP717_LDO0_OUTPUT_CONTROL, BIT(2)),
+	AXP_DESC(AXP717, ALDO4, "aldo4", "aldoin", 500, 3500, 100,
+		 AXP717_ALDO4_CONTROL, AXP717_LDO_V_OUT_MASK,
+		 AXP717_LDO0_OUTPUT_CONTROL, BIT(3)),
+	AXP_DESC(AXP717, BLDO1, "bldo1", "bldoin", 500, 3500, 100,
+		 AXP717_BLDO1_CONTROL, AXP717_LDO_V_OUT_MASK,
+		 AXP717_LDO0_OUTPUT_CONTROL, BIT(4)),
+	AXP_DESC(AXP717, BLDO2, "bldo2", "bldoin", 500, 3500, 100,
+		 AXP717_BLDO2_CONTROL, AXP717_LDO_V_OUT_MASK,
+		 AXP717_LDO0_OUTPUT_CONTROL, BIT(5)),
+	AXP_DESC(AXP717, BLDO3, "bldo3", "bldoin", 500, 3500, 100,
+		 AXP717_BLDO3_CONTROL, AXP717_LDO_V_OUT_MASK,
+		 AXP717_LDO0_OUTPUT_CONTROL, BIT(6)),
+	AXP_DESC(AXP717, BLDO4, "bldo4", "bldoin", 500, 3500, 100,
+		 AXP717_BLDO4_CONTROL, AXP717_LDO_V_OUT_MASK,
+		 AXP717_LDO0_OUTPUT_CONTROL, BIT(7)),
+	AXP_DESC(AXP717, CLDO1, "cldo1", "cldoin", 500, 3500, 100,
+		 AXP717_CLDO1_CONTROL, AXP717_LDO_V_OUT_MASK,
+		 AXP717_LDO1_OUTPUT_CONTROL, BIT(0)),
+	AXP_DESC(AXP717, CLDO2, "cldo2", "cldoin", 500, 3500, 100,
+		 AXP717_CLDO2_CONTROL, AXP717_LDO_V_OUT_MASK,
+		 AXP717_LDO1_OUTPUT_CONTROL, BIT(1)),
+	AXP_DESC(AXP717, CLDO3, "cldo3", "cldoin", 500, 3500, 100,
+		 AXP717_CLDO3_CONTROL, AXP717_LDO_V_OUT_MASK,
+		 AXP717_LDO1_OUTPUT_CONTROL, BIT(2)),
+	AXP_DESC(AXP717, CLDO4, "cldo4", "cldoin", 500, 3500, 100,
+		 AXP717_CLDO4_CONTROL, AXP717_LDO_V_OUT_MASK,
+		 AXP717_LDO1_OUTPUT_CONTROL, BIT(3)),
+	AXP_DESC(AXP717, CPUSLDO, "cpusldo", "vin1", 500, 1400, 50,
+		 AXP717_CPUSLDO_CONTROL, AXP717_LDO_V_OUT_MASK,
+		 AXP717_LDO1_OUTPUT_CONTROL, BIT(4)),
+};
+
 /* DCDC ranges shared with AXP813 */
 static const struct linear_range axp803_dcdc234_ranges[] = {
 	REGULATOR_LINEAR_RANGE(500000,
@@ -1253,6 +1337,7 @@ static int axp20x_set_dcdc_freq(struct platform_device *pdev, u32 dcdcfreq)
 		step = 150;
 		break;
 	case AXP313A_ID:
+	case AXP717_ID:
 	case AXP15060_ID:
 		/* The DCDC PWM frequency seems to be fixed to 3 MHz. */
 		if (dcdcfreq != 0) {
@@ -1479,6 +1564,10 @@ static int axp20x_regulator_probe(struct platform_device *pdev)
 		regulators = axp313a_regulators;
 		nregulators = AXP313A_REG_ID_MAX;
 		break;
+	case AXP717_ID:
+		regulators = axp717_regulators;
+		nregulators = AXP717_REG_ID_MAX;
+		break;
 	case AXP803_ID:
 		regulators = axp803_regulators;
 		nregulators = AXP803_REG_ID_MAX;
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 51ff3f9eaf..844e9587a8 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2200,7 +2200,7 @@ struct regulator *_regulator_get(struct device *dev, const char *id,
 
 		if (!have_full_constraints()) {
 			dev_warn(dev,
-				 "incomplete constraints, dummy supplies not allowed\n");
+				 "incomplete constraints, dummy supplies not allowed (id=%s)\n", id);
 			return ERR_PTR(-ENODEV);
 		}
 
@@ -2218,7 +2218,7 @@ struct regulator *_regulator_get(struct device *dev, const char *id,
 
 		case EXCLUSIVE_GET:
 			dev_warn(dev,
-				 "dummy supplies not allowed for exclusive requests\n");
+				 "dummy supplies not allowed for exclusive requests (id=%s)\n", id);
 			fallthrough;
 
 		default:
diff --git a/drivers/regulator/da9121-regulator.c b/drivers/regulator/da9121-regulator.c
index 5ee76b5335..96257551bb 100644
--- a/drivers/regulator/da9121-regulator.c
+++ b/drivers/regulator/da9121-regulator.c
@@ -872,7 +872,7 @@ static struct regmap_config da9121_1ch_regmap_config = {
 	.rd_table = &da9121_1ch_readable_table,
 	.wr_table = &da9121_1ch_writeable_table,
 	.volatile_table = &da9121_volatile_table,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 /* DA9121 regmap config for 2 channel variants */
@@ -883,7 +883,7 @@ static struct regmap_config da9121_2ch_regmap_config = {
 	.rd_table = &da9121_2ch_readable_table,
 	.wr_table = &da9121_2ch_writeable_table,
 	.volatile_table = &da9121_volatile_table,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 static int da9121_check_device_type(struct i2c_client *i2c, struct da9121 *chip)
diff --git a/drivers/regulator/da9211-regulator.c b/drivers/regulator/da9211-regulator.c
index af383ff0fe..d8b39ea3de 100644
--- a/drivers/regulator/da9211-regulator.c
+++ b/drivers/regulator/da9211-regulator.c
@@ -68,7 +68,7 @@ static const struct regmap_config da9211_regmap_config = {
 	.val_bits = 8,
 	.max_register = 5 * 128,
 	.volatile_reg = da9211_volatile_reg,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.ranges = da9211_regmap_range,
 	.num_ranges = ARRAY_SIZE(da9211_regmap_range),
 };
diff --git a/drivers/regulator/devres.c b/drivers/regulator/devres.c
index 90bb0d1788..7111c46e9d 100644
--- a/drivers/regulator/devres.c
+++ b/drivers/regulator/devres.c
@@ -145,6 +145,65 @@ struct regulator *devm_regulator_get_optional(struct device *dev,
 }
 EXPORT_SYMBOL_GPL(devm_regulator_get_optional);
 
+/**
+ * devm_regulator_get_enable_read_voltage - Resource managed regulator get and
+ *                                          enable that returns the voltage
+ * @dev: device to supply
+ * @id:  supply name or regulator ID.
+ *
+ * Get and enable regulator for duration of the device life-time.
+ * regulator_disable() and regulator_put() are automatically called on driver
+ * detach. See regulator_get_optional(), regulator_enable(), and
+ * regulator_get_voltage() for more information.
+ *
+ * This is a convenience function for supplies that provide a reference voltage
+ * where the consumer driver just needs to know the voltage and keep the
+ * regulator enabled.
+ *
+ * In cases where the supply is not strictly required, callers can check for
+ * -ENODEV error and handle it accordingly.
+ *
+ * Returns: voltage in microvolts on success, or an error code on failure.
+ */
+int devm_regulator_get_enable_read_voltage(struct device *dev, const char *id)
+{
+	struct regulator *r;
+	int ret;
+
+	/*
+	 * Since we need a real voltage, we use devm_regulator_get_optional()
+	 * rather than getting a dummy regulator with devm_regulator_get() and
+	 * then letting regulator_get_voltage() fail with -EINVAL. This way, the
+	 * caller can handle the -ENODEV error code if needed instead of the
+	 * ambiguous -EINVAL.
+	 */
+	r = devm_regulator_get_optional(dev, id);
+	if (IS_ERR(r))
+		return PTR_ERR(r);
+
+	ret = regulator_enable(r);
+	if (ret)
+		goto err_regulator_put;
+
+	ret = devm_add_action_or_reset(dev, regulator_action_disable, r);
+	if (ret)
+		goto err_regulator_put;
+
+	ret = regulator_get_voltage(r);
+	if (ret < 0)
+		goto err_release_action;
+
+	return ret;
+
+err_release_action:
+	devm_release_action(dev, regulator_action_disable, r);
+err_regulator_put:
+	devm_regulator_put(r);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(devm_regulator_get_enable_read_voltage);
+
 static int devm_regulator_match(struct device *dev, void *res, void *data)
 {
 	struct regulator **r = res;
diff --git a/drivers/regulator/isl9305.c b/drivers/regulator/isl9305.c
index 0f75600930..5a234f25e6 100644
--- a/drivers/regulator/isl9305.c
+++ b/drivers/regulator/isl9305.c
@@ -134,7 +134,7 @@ static const struct regmap_config isl9305_regmap = {
 	.val_bits = 8,
 
 	.max_register = ISL9305_MAX_REG,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 static int isl9305_i2c_probe(struct i2c_client *i2c)
diff --git a/drivers/regulator/max8973-regulator.c b/drivers/regulator/max8973-regulator.c
index f8bb6828fe..96ca146281 100644
--- a/drivers/regulator/max8973-regulator.c
+++ b/drivers/regulator/max8973-regulator.c
@@ -510,7 +510,7 @@ static const struct regmap_config max8973_regmap_config = {
 	.reg_bits		= 8,
 	.val_bits		= 8,
 	.max_register		= MAX8973_CHIPID2,
-	.cache_type		= REGCACHE_RBTREE,
+	.cache_type		= REGCACHE_MAPLE,
 };
 
 static struct max8973_regulator_platform_data *max8973_parse_dt(
diff --git a/drivers/regulator/mt6311-regulator.c b/drivers/regulator/mt6311-regulator.c
index 63a51485f2..c00638cd2d 100644
--- a/drivers/regulator/mt6311-regulator.c
+++ b/drivers/regulator/mt6311-regulator.c
@@ -20,7 +20,7 @@ static const struct regmap_config mt6311_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
 	.max_register = MT6311_FQMTR_CON4,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 /* Default limits measured in millivolts and milliamps */
diff --git a/drivers/regulator/pca9450-regulator.c b/drivers/regulator/pca9450-regulator.c
index 2ab365d274..be488c5dff 100644
--- a/drivers/regulator/pca9450-regulator.c
+++ b/drivers/regulator/pca9450-regulator.c
@@ -53,7 +53,7 @@ static const struct regmap_config pca9450_regmap_config = {
 	.val_bits = 8,
 	.volatile_table = &pca9450_volatile_regs,
 	.max_register = PCA9450_MAX_REGISTER - 1,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 /*
@@ -107,6 +107,14 @@ static const struct linear_range pca9450_dvs_buck_volts[] = {
 };
 
 /*
+ * BUCK1/3
+ * 0.65 to 2.2375V (12.5mV step)
+ */
+static const struct linear_range pca9451a_dvs_buck_volts[] = {
+	REGULATOR_LINEAR_RANGE(650000, 0x00, 0x7F, 12500),
+};
+
+/*
  * BUCK4/5/6
  * 0.6V to 3.4V (25mV step)
  */
@@ -662,6 +670,178 @@ static const struct pca9450_regulator_desc pca9450bc_regulators[] = {
 	},
 };
 
+static const struct pca9450_regulator_desc pca9451a_regulators[] = {
+	{
+		.desc = {
+			.name = "buck1",
+			.of_match = of_match_ptr("BUCK1"),
+			.regulators_node = of_match_ptr("regulators"),
+			.id = PCA9450_BUCK1,
+			.ops = &pca9450_dvs_buck_regulator_ops,
+			.type = REGULATOR_VOLTAGE,
+			.n_voltages = PCA9450_BUCK1_VOLTAGE_NUM,
+			.linear_ranges = pca9451a_dvs_buck_volts,
+			.n_linear_ranges = ARRAY_SIZE(pca9451a_dvs_buck_volts),
+			.vsel_reg = PCA9450_REG_BUCK1OUT_DVS0,
+			.vsel_mask = BUCK1OUT_DVS0_MASK,
+			.enable_reg = PCA9450_REG_BUCK1CTRL,
+			.enable_mask = BUCK1_ENMODE_MASK,
+			.enable_val = BUCK_ENMODE_ONREQ,
+			.ramp_mask = BUCK1_RAMP_MASK,
+			.ramp_delay_table = pca9450_dvs_buck_ramp_table,
+			.n_ramp_values = ARRAY_SIZE(pca9450_dvs_buck_ramp_table),
+			.owner = THIS_MODULE,
+			.of_parse_cb = pca9450_set_dvs_levels,
+		},
+		.dvs = {
+			.run_reg = PCA9450_REG_BUCK1OUT_DVS0,
+			.run_mask = BUCK1OUT_DVS0_MASK,
+			.standby_reg = PCA9450_REG_BUCK1OUT_DVS1,
+			.standby_mask = BUCK1OUT_DVS1_MASK,
+		},
+	},
+	{
+		.desc = {
+			.name = "buck2",
+			.of_match = of_match_ptr("BUCK2"),
+			.regulators_node = of_match_ptr("regulators"),
+			.id = PCA9450_BUCK2,
+			.ops = &pca9450_dvs_buck_regulator_ops,
+			.type = REGULATOR_VOLTAGE,
+			.n_voltages = PCA9450_BUCK2_VOLTAGE_NUM,
+			.linear_ranges = pca9450_dvs_buck_volts,
+			.n_linear_ranges = ARRAY_SIZE(pca9450_dvs_buck_volts),
+			.vsel_reg = PCA9450_REG_BUCK2OUT_DVS0,
+			.vsel_mask = BUCK2OUT_DVS0_MASK,
+			.enable_reg = PCA9450_REG_BUCK2CTRL,
+			.enable_mask = BUCK2_ENMODE_MASK,
+			.enable_val = BUCK_ENMODE_ONREQ_STBYREQ,
+			.ramp_mask = BUCK2_RAMP_MASK,
+			.ramp_delay_table = pca9450_dvs_buck_ramp_table,
+			.n_ramp_values = ARRAY_SIZE(pca9450_dvs_buck_ramp_table),
+			.owner = THIS_MODULE,
+			.of_parse_cb = pca9450_set_dvs_levels,
+		},
+		.dvs = {
+			.run_reg = PCA9450_REG_BUCK2OUT_DVS0,
+			.run_mask = BUCK2OUT_DVS0_MASK,
+			.standby_reg = PCA9450_REG_BUCK2OUT_DVS1,
+			.standby_mask = BUCK2OUT_DVS1_MASK,
+		},
+	},
+	{
+		.desc = {
+			.name = "buck4",
+			.of_match = of_match_ptr("BUCK4"),
+			.regulators_node = of_match_ptr("regulators"),
+			.id = PCA9450_BUCK4,
+			.ops = &pca9450_buck_regulator_ops,
+			.type = REGULATOR_VOLTAGE,
+			.n_voltages = PCA9450_BUCK4_VOLTAGE_NUM,
+			.linear_ranges = pca9450_buck_volts,
+			.n_linear_ranges = ARRAY_SIZE(pca9450_buck_volts),
+			.vsel_reg = PCA9450_REG_BUCK4OUT,
+			.vsel_mask = BUCK4OUT_MASK,
+			.enable_reg = PCA9450_REG_BUCK4CTRL,
+			.enable_mask = BUCK4_ENMODE_MASK,
+			.enable_val = BUCK_ENMODE_ONREQ,
+			.owner = THIS_MODULE,
+		},
+	},
+	{
+		.desc = {
+			.name = "buck5",
+			.of_match = of_match_ptr("BUCK5"),
+			.regulators_node = of_match_ptr("regulators"),
+			.id = PCA9450_BUCK5,
+			.ops = &pca9450_buck_regulator_ops,
+			.type = REGULATOR_VOLTAGE,
+			.n_voltages = PCA9450_BUCK5_VOLTAGE_NUM,
+			.linear_ranges = pca9450_buck_volts,
+			.n_linear_ranges = ARRAY_SIZE(pca9450_buck_volts),
+			.vsel_reg = PCA9450_REG_BUCK5OUT,
+			.vsel_mask = BUCK5OUT_MASK,
+			.enable_reg = PCA9450_REG_BUCK5CTRL,
+			.enable_mask = BUCK5_ENMODE_MASK,
+			.enable_val = BUCK_ENMODE_ONREQ,
+			.owner = THIS_MODULE,
+		},
+	},
+	{
+		.desc = {
+			.name = "buck6",
+			.of_match = of_match_ptr("BUCK6"),
+			.regulators_node = of_match_ptr("regulators"),
+			.id = PCA9450_BUCK6,
+			.ops = &pca9450_buck_regulator_ops,
+			.type = REGULATOR_VOLTAGE,
+			.n_voltages = PCA9450_BUCK6_VOLTAGE_NUM,
+			.linear_ranges = pca9450_buck_volts,
+			.n_linear_ranges = ARRAY_SIZE(pca9450_buck_volts),
+			.vsel_reg = PCA9450_REG_BUCK6OUT,
+			.vsel_mask = BUCK6OUT_MASK,
+			.enable_reg = PCA9450_REG_BUCK6CTRL,
+			.enable_mask = BUCK6_ENMODE_MASK,
+			.enable_val = BUCK_ENMODE_ONREQ,
+			.owner = THIS_MODULE,
+		},
+	},
+	{
+		.desc = {
+			.name = "ldo1",
+			.of_match = of_match_ptr("LDO1"),
+			.regulators_node = of_match_ptr("regulators"),
+			.id = PCA9450_LDO1,
+			.ops = &pca9450_ldo_regulator_ops,
+			.type = REGULATOR_VOLTAGE,
+			.n_voltages = PCA9450_LDO1_VOLTAGE_NUM,
+			.linear_ranges = pca9450_ldo1_volts,
+			.n_linear_ranges = ARRAY_SIZE(pca9450_ldo1_volts),
+			.vsel_reg = PCA9450_REG_LDO1CTRL,
+			.vsel_mask = LDO1OUT_MASK,
+			.enable_reg = PCA9450_REG_LDO1CTRL,
+			.enable_mask = LDO1_EN_MASK,
+			.owner = THIS_MODULE,
+		},
+	},
+	{
+		.desc = {
+			.name = "ldo4",
+			.of_match = of_match_ptr("LDO4"),
+			.regulators_node = of_match_ptr("regulators"),
+			.id = PCA9450_LDO4,
+			.ops = &pca9450_ldo_regulator_ops,
+			.type = REGULATOR_VOLTAGE,
+			.n_voltages = PCA9450_LDO4_VOLTAGE_NUM,
+			.linear_ranges = pca9450_ldo34_volts,
+			.n_linear_ranges = ARRAY_SIZE(pca9450_ldo34_volts),
+			.vsel_reg = PCA9450_REG_LDO4CTRL,
+			.vsel_mask = LDO4OUT_MASK,
+			.enable_reg = PCA9450_REG_LDO4CTRL,
+			.enable_mask = LDO4_EN_MASK,
+			.owner = THIS_MODULE,
+		},
+	},
+	{
+		.desc = {
+			.name = "ldo5",
+			.of_match = of_match_ptr("LDO5"),
+			.regulators_node = of_match_ptr("regulators"),
+			.id = PCA9450_LDO5,
+			.ops = &pca9450_ldo_regulator_ops,
+			.type = REGULATOR_VOLTAGE,
+			.n_voltages = PCA9450_LDO5_VOLTAGE_NUM,
+			.linear_ranges = pca9450_ldo5_volts,
+			.n_linear_ranges = ARRAY_SIZE(pca9450_ldo5_volts),
+			.vsel_reg = PCA9450_REG_LDO5CTRL_H,
+			.vsel_mask = LDO5HOUT_MASK,
+			.enable_reg = PCA9450_REG_LDO5CTRL_H,
+			.enable_mask = LDO5H_EN_MASK,
+			.owner = THIS_MODULE,
+		},
+	},
+};
+
 static irqreturn_t pca9450_irq_handler(int irq, void *data)
 {
 	struct pca9450 *pca9450 = data;
@@ -729,6 +909,10 @@ static int pca9450_i2c_probe(struct i2c_client *i2c)
 		regulator_desc = pca9450bc_regulators;
 		pca9450->rcnt = ARRAY_SIZE(pca9450bc_regulators);
 		break;
+	case PCA9450_TYPE_PCA9451A:
+		regulator_desc = pca9451a_regulators;
+		pca9450->rcnt = ARRAY_SIZE(pca9451a_regulators);
+		break;
 	default:
 		dev_err(&i2c->dev, "Unknown device type");
 		return -EINVAL;
@@ -755,7 +939,8 @@ static int pca9450_i2c_probe(struct i2c_client *i2c)
 
 	/* Check your board and dts for match the right pmic */
 	if (((device_id >> 4) != 0x1 && type == PCA9450_TYPE_PCA9450A) ||
-	    ((device_id >> 4) != 0x3 && type == PCA9450_TYPE_PCA9450BC)) {
+	    ((device_id >> 4) != 0x3 && type == PCA9450_TYPE_PCA9450BC) ||
+	    ((device_id >> 4) != 0x9 && type == PCA9450_TYPE_PCA9451A)) {
 		dev_err(&i2c->dev, "Device id(%x) mismatched\n",
 			device_id >> 4);
 		return -EINVAL;
@@ -846,7 +1031,8 @@ static int pca9450_i2c_probe(struct i2c_client *i2c)
 	}
 
 	dev_info(&i2c->dev, "%s probed.\n",
-		type == PCA9450_TYPE_PCA9450A ? "pca9450a" : "pca9450bc");
+		type == PCA9450_TYPE_PCA9450A ? "pca9450a" :
+		(type == PCA9450_TYPE_PCA9451A ? "pca9451a" : "pca9450bc"));
 
 	return 0;
 }
@@ -864,6 +1050,10 @@ static const struct of_device_id pca9450_of_match[] = {
 		.compatible = "nxp,pca9450c",
 		.data = (void *)PCA9450_TYPE_PCA9450BC,
 	},
+	{
+		.compatible = "nxp,pca9451a",
+		.data = (void *)PCA9450_TYPE_PCA9451A,
+	},
 	{ }
 };
 MODULE_DEVICE_TABLE(of, pca9450_of_match);
diff --git a/drivers/regulator/pf8x00-regulator.c b/drivers/regulator/pf8x00-regulator.c
index b0781d9a10..9fd8e0949b 100644
--- a/drivers/regulator/pf8x00-regulator.c
+++ b/drivers/regulator/pf8x00-regulator.c
@@ -142,7 +142,7 @@ static const struct regmap_config pf8x00_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
 	.max_register = PF8X00_PAGE_SELECT,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 /* VLDOx output: 1.5V to 5.0V */
diff --git a/drivers/regulator/pfuze100-regulator.c b/drivers/regulator/pfuze100-regulator.c
index 46854602b3..7c04870442 100644
--- a/drivers/regulator/pfuze100-regulator.c
+++ b/drivers/regulator/pfuze100-regulator.c
@@ -680,7 +680,7 @@ static const struct regmap_config pfuze_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
 	.max_register = PFUZE_NUMREGS - 1,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 static int pfuze100_regulator_probe(struct i2c_client *client)
diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c
index d89ae7f16d..14b60abd6a 100644
--- a/drivers/regulator/rk808-regulator.c
+++ b/drivers/regulator/rk808-regulator.c
@@ -158,6 +158,11 @@
 	RK8XX_DESC_COM(_id, _match, _supply, _min, _max, _step, _vreg,	\
 	_vmask, _ereg, _emask, 0, 0, _etime, &rk808_reg_ops)
 
+#define RK816_DESC(_id, _match, _supply, _min, _max, _step, _vreg,	\
+	_vmask, _ereg, _emask, _disval, _etime)				\
+	RK8XX_DESC_COM(_id, _match, _supply, _min, _max, _step, _vreg,	\
+	_vmask, _ereg, _emask, _emask, _disval, _etime, &rk816_reg_ops)
+
 #define RK817_DESC(_id, _match, _supply, _min, _max, _step, _vreg,	\
 	_vmask, _ereg, _emask, _disval, _etime)				\
 	RK8XX_DESC_COM(_id, _match, _supply, _min, _max, _step, _vreg,	\
@@ -258,7 +263,7 @@ static const unsigned int rk808_buck1_2_ramp_table[] = {
 	2000, 4000, 6000, 10000
 };
 
-/* RK817 RK809 */
+/* RK817/RK809/RK816 (buck 1/2 only) */
 static const unsigned int rk817_buck1_4_ramp_table[] = {
 	3000, 6300, 12500, 25000
 };
@@ -534,15 +539,25 @@ static int rk808_set_suspend_voltage_range(struct regulator_dev *rdev, int uv)
 {
 	unsigned int reg;
 	int sel = regulator_map_voltage_linear_range(rdev, uv, uv);
+	int ret;
 
 	if (sel < 0)
 		return -EINVAL;
 
 	reg = rdev->desc->vsel_reg + RK808_SLP_REG_OFFSET;
 
-	return regmap_update_bits(rdev->regmap, reg,
-				  rdev->desc->vsel_mask,
-				  sel);
+	ret = regmap_update_bits(rdev->regmap, reg,
+				 rdev->desc->vsel_mask,
+				 sel);
+	if (ret)
+		return ret;
+
+	if (rdev->desc->apply_bit)
+		ret = regmap_update_bits(rdev->regmap, rdev->desc->apply_reg,
+					 rdev->desc->apply_bit,
+					 rdev->desc->apply_bit);
+
+	return ret;
 }
 
 static int rk805_set_suspend_enable(struct regulator_dev *rdev)
@@ -630,6 +645,38 @@ static int rk808_set_suspend_disable(struct regulator_dev *rdev)
 				  rdev->desc->enable_mask);
 }
 
+static const struct rk8xx_register_bit rk816_suspend_bits[] = {
+	RK8XX_REG_BIT(RK818_SLEEP_SET_OFF_REG1, 0),
+	RK8XX_REG_BIT(RK818_SLEEP_SET_OFF_REG1, 1),
+	RK8XX_REG_BIT(RK818_SLEEP_SET_OFF_REG1, 2),
+	RK8XX_REG_BIT(RK818_SLEEP_SET_OFF_REG1, 3),
+	RK8XX_REG_BIT(RK818_SLEEP_SET_OFF_REG2, 0),
+	RK8XX_REG_BIT(RK818_SLEEP_SET_OFF_REG2, 1),
+	RK8XX_REG_BIT(RK818_SLEEP_SET_OFF_REG2, 2),
+	RK8XX_REG_BIT(RK818_SLEEP_SET_OFF_REG2, 3),
+	RK8XX_REG_BIT(RK818_SLEEP_SET_OFF_REG2, 4),
+	RK8XX_REG_BIT(RK818_SLEEP_SET_OFF_REG2, 5),
+	RK8XX_REG_BIT(RK818_SLEEP_SET_OFF_REG1, 5),
+	RK8XX_REG_BIT(RK818_SLEEP_SET_OFF_REG1, 6),
+};
+
+static int rk816_set_suspend_enable(struct regulator_dev *rdev)
+{
+	int rid = rdev_get_id(rdev);
+
+	return regmap_update_bits(rdev->regmap, rk816_suspend_bits[rid].reg,
+				  rk816_suspend_bits[rid].bit,
+				  rk816_suspend_bits[rid].bit);
+}
+
+static int rk816_set_suspend_disable(struct regulator_dev *rdev)
+{
+	int rid = rdev_get_id(rdev);
+
+	return regmap_update_bits(rdev->regmap, rk816_suspend_bits[rid].reg,
+				  rk816_suspend_bits[rid].bit, 0);
+}
+
 static int rk817_set_suspend_enable_ctrl(struct regulator_dev *rdev,
 					 unsigned int en)
 {
@@ -903,6 +950,54 @@ static const struct regulator_ops rk809_buck5_ops_range = {
 	.set_suspend_disable	= rk817_set_suspend_disable,
 };
 
+static const struct regulator_ops rk816_buck1_2_ops_ranges = {
+	.list_voltage		= regulator_list_voltage_linear_range,
+	.map_voltage		= regulator_map_voltage_linear_range,
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
+	.set_voltage_time_sel	= regulator_set_voltage_time_sel,
+	.enable			= regulator_enable_regmap,
+	.disable		= regulator_disable_regmap,
+	.is_enabled		= regulator_is_enabled_regmap,
+	.set_mode		= rk8xx_set_mode,
+	.get_mode		= rk8xx_get_mode,
+	.set_suspend_mode	= rk8xx_set_suspend_mode,
+	.set_ramp_delay		= regulator_set_ramp_delay_regmap,
+	.set_suspend_voltage	= rk808_set_suspend_voltage_range,
+	.set_suspend_enable	= rk816_set_suspend_enable,
+	.set_suspend_disable	= rk816_set_suspend_disable,
+};
+
+static const struct regulator_ops rk816_buck4_ops_ranges = {
+	.list_voltage		= regulator_list_voltage_linear_range,
+	.map_voltage		= regulator_map_voltage_linear_range,
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
+	.set_voltage_time_sel	= regulator_set_voltage_time_sel,
+	.enable			= regulator_enable_regmap,
+	.disable		= regulator_disable_regmap,
+	.is_enabled		= regulator_is_enabled_regmap,
+	.set_mode		= rk8xx_set_mode,
+	.get_mode		= rk8xx_get_mode,
+	.set_suspend_mode	= rk8xx_set_suspend_mode,
+	.set_suspend_voltage	= rk808_set_suspend_voltage_range,
+	.set_suspend_enable	= rk816_set_suspend_enable,
+	.set_suspend_disable	= rk816_set_suspend_disable,
+};
+
+static const struct regulator_ops rk816_reg_ops = {
+	.list_voltage		= regulator_list_voltage_linear,
+	.map_voltage		= regulator_map_voltage_linear,
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
+	.enable			= regulator_enable_regmap,
+	.disable		= regulator_disable_regmap,
+	.is_enabled		= rk8xx_is_enabled_wmsk_regmap,
+	.set_suspend_voltage	= rk808_set_suspend_voltage,
+	.set_suspend_enable	= rk816_set_suspend_enable,
+	.set_suspend_disable	= rk816_set_suspend_disable,
+};
+
 static const struct regulator_ops rk817_reg_ops = {
 	.list_voltage		= regulator_list_voltage_linear,
 	.map_voltage		= regulator_map_voltage_linear,
@@ -1382,6 +1477,117 @@ static const struct regulator_desc rk809_reg[] = {
 			  DISABLE_VAL(3)),
 };
 
+static const struct linear_range rk816_buck_4_voltage_ranges[] = {
+	REGULATOR_LINEAR_RANGE(800000, 0, 26, 100000),
+	REGULATOR_LINEAR_RANGE(3500000, 27, 31, 0),
+};
+
+static const struct regulator_desc rk816_reg[] = {
+	{
+		.name = "dcdc1",
+		.supply_name = "vcc1",
+		.of_match = of_match_ptr("dcdc1"),
+		.regulators_node = of_match_ptr("regulators"),
+		.id = RK816_ID_DCDC1,
+		.ops = &rk816_buck1_2_ops_ranges,
+		.type = REGULATOR_VOLTAGE,
+		.n_voltages = 64,
+		.linear_ranges = rk805_buck_1_2_voltage_ranges,
+		.n_linear_ranges = ARRAY_SIZE(rk805_buck_1_2_voltage_ranges),
+		.vsel_reg = RK818_BUCK1_ON_VSEL_REG,
+		.vsel_mask = RK818_BUCK_VSEL_MASK,
+		.apply_reg = RK816_DCDC_EN_REG2,
+		.apply_bit = RK816_BUCK_DVS_CONFIRM,
+		.enable_reg = RK816_DCDC_EN_REG1,
+		.enable_mask = BIT(4) | BIT(0),
+		.enable_val = BIT(4) | BIT(0),
+		.disable_val = BIT(4),
+		.ramp_reg = RK818_BUCK1_CONFIG_REG,
+		.ramp_mask = RK808_RAMP_RATE_MASK,
+		.ramp_delay_table = rk817_buck1_4_ramp_table,
+		.n_ramp_values = ARRAY_SIZE(rk817_buck1_4_ramp_table),
+		.of_map_mode = rk8xx_regulator_of_map_mode,
+		.owner = THIS_MODULE,
+	}, {
+		.name = "dcdc2",
+		.supply_name = "vcc2",
+		.of_match = of_match_ptr("dcdc2"),
+		.regulators_node = of_match_ptr("regulators"),
+		.id = RK816_ID_DCDC2,
+		.ops = &rk816_buck1_2_ops_ranges,
+		.type = REGULATOR_VOLTAGE,
+		.n_voltages = 64,
+		.linear_ranges = rk805_buck_1_2_voltage_ranges,
+		.n_linear_ranges = ARRAY_SIZE(rk805_buck_1_2_voltage_ranges),
+		.vsel_reg = RK818_BUCK2_ON_VSEL_REG,
+		.vsel_mask = RK818_BUCK_VSEL_MASK,
+		.apply_reg = RK816_DCDC_EN_REG2,
+		.apply_bit = RK816_BUCK_DVS_CONFIRM,
+		.enable_reg = RK816_DCDC_EN_REG1,
+		.enable_mask = BIT(5) | BIT(1),
+		.enable_val = BIT(5) | BIT(1),
+		.disable_val = BIT(5),
+		.ramp_reg = RK818_BUCK2_CONFIG_REG,
+		.ramp_mask = RK808_RAMP_RATE_MASK,
+		.ramp_delay_table = rk817_buck1_4_ramp_table,
+		.n_ramp_values = ARRAY_SIZE(rk817_buck1_4_ramp_table),
+		.of_map_mode = rk8xx_regulator_of_map_mode,
+		.owner = THIS_MODULE,
+	}, {
+		.name = "dcdc3",
+		.supply_name = "vcc3",
+		.of_match = of_match_ptr("dcdc3"),
+		.regulators_node = of_match_ptr("regulators"),
+		.id = RK816_ID_DCDC3,
+		.ops = &rk808_switch_ops,
+		.type = REGULATOR_VOLTAGE,
+		.n_voltages = 1,
+		.enable_reg = RK816_DCDC_EN_REG1,
+		.enable_mask = BIT(6) | BIT(2),
+		.enable_val =  BIT(6) | BIT(2),
+		.disable_val = BIT(6),
+		.of_map_mode = rk8xx_regulator_of_map_mode,
+		.owner = THIS_MODULE,
+	}, {
+		.name = "dcdc4",
+		.supply_name = "vcc4",
+		.of_match = of_match_ptr("dcdc4"),
+		.regulators_node = of_match_ptr("regulators"),
+		.id = RK816_ID_DCDC4,
+		.ops = &rk816_buck4_ops_ranges,
+		.type = REGULATOR_VOLTAGE,
+		.n_voltages = 32,
+		.linear_ranges = rk816_buck_4_voltage_ranges,
+		.n_linear_ranges = ARRAY_SIZE(rk816_buck_4_voltage_ranges),
+		.vsel_reg = RK818_BUCK4_ON_VSEL_REG,
+		.vsel_mask = RK818_BUCK4_VSEL_MASK,
+		.enable_reg = RK816_DCDC_EN_REG1,
+		.enable_mask = BIT(7) | BIT(3),
+		.enable_val = BIT(7) | BIT(3),
+		.disable_val = BIT(7),
+		.of_map_mode = rk8xx_regulator_of_map_mode,
+		.owner = THIS_MODULE,
+	},
+	RK816_DESC(RK816_ID_LDO1, "ldo1", "vcc5", 800, 3400, 100,
+		   RK818_LDO1_ON_VSEL_REG, RK818_LDO_VSEL_MASK,
+		   RK816_LDO_EN_REG1, ENABLE_MASK(0), DISABLE_VAL(0), 400),
+	RK816_DESC(RK816_ID_LDO2, "ldo2", "vcc5", 800, 3400, 100,
+		   RK818_LDO2_ON_VSEL_REG, RK818_LDO_VSEL_MASK,
+		   RK816_LDO_EN_REG1, ENABLE_MASK(1), DISABLE_VAL(1), 400),
+	RK816_DESC(RK816_ID_LDO3, "ldo3", "vcc5", 800, 3400, 100,
+		   RK818_LDO3_ON_VSEL_REG, RK818_LDO_VSEL_MASK,
+		   RK816_LDO_EN_REG1, ENABLE_MASK(2), DISABLE_VAL(2), 400),
+	RK816_DESC(RK816_ID_LDO4, "ldo4", "vcc6", 800, 3400, 100,
+		   RK818_LDO4_ON_VSEL_REG, RK818_LDO_VSEL_MASK,
+		   RK816_LDO_EN_REG1, ENABLE_MASK(3), DISABLE_VAL(3), 400),
+	RK816_DESC(RK816_ID_LDO5, "ldo5", "vcc6", 800, 3400, 100,
+		   RK818_LDO5_ON_VSEL_REG, RK818_LDO_VSEL_MASK,
+		   RK816_LDO_EN_REG2, ENABLE_MASK(0), DISABLE_VAL(0), 400),
+	RK816_DESC(RK816_ID_LDO6, "ldo6", "vcc6", 800, 3400, 100,
+		   RK818_LDO6_ON_VSEL_REG, RK818_LDO_VSEL_MASK,
+		   RK816_LDO_EN_REG2, ENABLE_MASK(1), DISABLE_VAL(1), 400),
+};
+
 static const struct regulator_desc rk817_reg[] = {
 	{
 		.name = "DCDC_REG1",
@@ -1704,6 +1910,10 @@ static int rk808_regulator_probe(struct platform_device *pdev)
 		regulators = rk809_reg;
 		nregulators = RK809_NUM_REGULATORS;
 		break;
+	case RK816_ID:
+		regulators = rk816_reg;
+		nregulators = ARRAY_SIZE(rk816_reg);
+		break;
 	case RK817_ID:
 		regulators = rk817_reg;
 		nregulators = RK817_NUM_REGULATORS;
diff --git a/drivers/regulator/rohm-regulator.c b/drivers/regulator/rohm-regulator.c
index 0e2418ed95..4b95ca0195 100644
--- a/drivers/regulator/rohm-regulator.c
+++ b/drivers/regulator/rohm-regulator.c
@@ -46,6 +46,7 @@ static int set_dvs_level(const struct regulator_desc *desc,
 			continue;
 		if (ret == uv) {
 			i <<= ffs(desc->vsel_mask) - 1;
+
 			ret = regmap_update_bits(regmap, reg, mask, i);
 			if (omask && !ret)
 				ret = regmap_update_bits(regmap, oreg, omask,
@@ -53,6 +54,9 @@ static int set_dvs_level(const struct regulator_desc *desc,
 			break;
 		}
 	}
+	if (i == desc->n_voltages)
+		pr_warn("Unsupported %s voltage %u\n", prop, uv);
+
 	return ret;
 }
 
diff --git a/drivers/regulator/rpi-panel-attiny-regulator.c b/drivers/regulator/rpi-panel-attiny-regulator.c
index f52c3d47ec..6c3b6bfac9 100644
--- a/drivers/regulator/rpi-panel-attiny-regulator.c
+++ b/drivers/regulator/rpi-panel-attiny-regulator.c
@@ -75,7 +75,7 @@ static const struct regmap_config attiny_regmap_config = {
 	.val_bits = 8,
 	.disable_locking = 1,
 	.max_register = REG_WRITE_DATA_L,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 static int attiny_set_port_state(struct attiny_lcd *state, int reg, u8 val)
diff --git a/drivers/regulator/rtmv20-regulator.c b/drivers/regulator/rtmv20-regulator.c
index dfd1522637..3d8d29f87b 100644
--- a/drivers/regulator/rtmv20-regulator.c
+++ b/drivers/regulator/rtmv20-regulator.c
@@ -312,7 +312,7 @@ static bool rtmv20_is_volatile_reg(struct device *dev, unsigned int reg)
 static const struct regmap_config rtmv20_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.max_register = RTMV20_REG_LDMASK,
 	.num_reg_defaults_raw = RTMV20_MAX_REGS,
 
diff --git a/drivers/regulator/rtq2208-regulator.c b/drivers/regulator/rtq2208-regulator.c
index 3079de41ef..c31b6dc322 100644
--- a/drivers/regulator/rtq2208-regulator.c
+++ b/drivers/regulator/rtq2208-regulator.c
@@ -26,6 +26,7 @@
 #define RTQ2208_REG_BUCK_H_CFG0			0xA2
 #define RTQ2208_REG_LDO1_CFG			0xB1
 #define RTQ2208_REG_LDO2_CFG			0xC1
+#define RTQ2208_REG_LDO_DVS_CTRL		0xD0
 
 /* Mask */
 #define RTQ2208_BUCK_NR_MTP_SEL_MASK		GENMASK(7, 0)
@@ -40,6 +41,10 @@
 #define RTQ2208_EN_DIS_MASK			BIT(0)
 #define RTQ2208_BUCK_RAMP_SEL_MASK		GENMASK(2, 0)
 #define RTQ2208_HD_INT_MASK			BIT(0)
+#define RTQ2208_LDO1_DISCHG_EN_MASK		BIT(4)
+#define RTQ2208_LDO1_VOSEL_SD_MASK		BIT(5)
+#define RTQ2208_LDO2_DISCHG_EN_MASK		BIT(6)
+#define RTQ2208_LDO2_VOSEL_SD_MASK		BIT(7)
 
 /* Size */
 #define RTQ2208_VOUT_MAXNUM			256
@@ -223,6 +228,11 @@ static const struct regulator_ops rtq2208_regulator_ldo_ops = {
 	.set_suspend_disable = rtq2208_set_suspend_disable,
 };
 
+static struct of_regulator_match rtq2208_ldo_match[] = {
+	{.name = "ldo2", },
+	{.name = "ldo1", },
+};
+
 static unsigned int rtq2208_of_map_mode(unsigned int mode)
 {
 	switch (mode) {
@@ -317,25 +327,7 @@ static irqreturn_t rtq2208_irq_handler(int irqno, void *devid)
 	return IRQ_HANDLED;
 }
 
-#define RTQ2208_REGULATOR_INFO(_name, _base) \
-{ \
-	.name = #_name, \
-	.base = _base, \
-}
-#define BUCK_RG_BASE(_id)	RTQ2208_REG_BUCK_##_id##_CFG0
-#define BUCK_RG_SHIFT(_base, _shift)	(_base + _shift)
-#define LDO_RG_BASE(_id)	RTQ2208_REG_LDO##_id##_CFG
-#define LDO_RG_SHIFT(_base, _shift)	(_base + _shift)
-#define	VSEL_SHIFT(_sel)	(_sel ? 3 : 1)
-#define MTP_SEL_MASK(_sel)	RTQ2208_BUCK_EN_NR_MTP_SEL##_sel##_MASK
-
-static const struct linear_range rtq2208_vout_range[] = {
-	REGULATOR_LINEAR_RANGE(400000, 0, 180, 5000),
-	REGULATOR_LINEAR_RANGE(1310000, 181, 255, 10000),
-};
-
-static int rtq2208_of_get_fixed_voltage(struct device *dev,
-					struct of_regulator_match *rtq2208_ldo_match, int n_fixed)
+static int rtq2208_of_get_ldo_dvs_ability(struct device *dev)
 {
 	struct device_node *np;
 	struct of_regulator_match *match;
@@ -350,14 +342,14 @@ static int rtq2208_of_get_fixed_voltage(struct device *dev,
 	if (!np)
 		np = dev->of_node;
 
-	ret = of_regulator_match(dev, np, rtq2208_ldo_match, n_fixed);
+	ret = of_regulator_match(dev, np, rtq2208_ldo_match, ARRAY_SIZE(rtq2208_ldo_match));
 
 	of_node_put(np);
 
 	if (ret < 0)
 		return ret;
 
-	for (i = 0; i < n_fixed; i++) {
+	for (i = 0; i < ARRAY_SIZE(rtq2208_ldo_match); i++) {
 		match = rtq2208_ldo_match + i;
 		init_data = match->init_data;
 		rdesc = (struct rtq2208_regulator_desc *)match->driver_data;
@@ -372,24 +364,56 @@ static int rtq2208_of_get_fixed_voltage(struct device *dev,
 	return 0;
 }
 
-static void rtq2208_init_regulator_desc(struct rtq2208_regulator_desc *rdesc, int mtp_sel,
-					int idx, struct of_regulator_match *rtq2208_ldo_match, int *ldo_idx)
+
+#define BUCK_INFO(_name, _id)						\
+{									\
+	.name = _name,							\
+	.base = RTQ2208_REG_BUCK_##_id##_CFG0,				\
+	.enable_reg = BUCK_RG_SHIFT(RTQ2208_REG_BUCK_##_id##_CFG0, 2),	\
+	.dis_reg = RTQ2208_REG_BUCK_##_id##_CFG0,			\
+}
+
+#define LDO_INFO(_name, _id)						\
+{									\
+	.name = _name,							\
+	.base = RTQ2208_REG_LDO##_id##_CFG,				\
+	.enable_reg = RTQ2208_REG_LDO##_id##_CFG,			\
+	.dis_mask = RTQ2208_LDO##_id##_DISCHG_EN_MASK,			\
+	.dis_on = RTQ2208_LDO##_id##_DISCHG_EN_MASK,			\
+	.vsel_mask = RTQ2208_LDO##_id##_VOSEL_SD_MASK,			\
+}
+
+#define BUCK_RG_SHIFT(_base, _shift)	(_base + _shift)
+#define	VSEL_SHIFT(_sel)	(_sel ? 3 : 1)
+#define MTP_SEL_MASK(_sel)	RTQ2208_BUCK_EN_NR_MTP_SEL##_sel##_MASK
+
+static const struct linear_range rtq2208_vout_range[] = {
+	REGULATOR_LINEAR_RANGE(400000, 0, 180, 5000),
+	REGULATOR_LINEAR_RANGE(1310000, 181, 255, 10000),
+};
+
+static void rtq2208_init_regulator_desc(struct rtq2208_regulator_desc *rdesc, int mtp_sel, int idx)
 {
 	struct regulator_desc *desc;
 	static const struct {
 		char *name;
 		int base;
+		int enable_reg;
+		int dis_reg;
+		int dis_mask;
+		int dis_on;
+		int vsel_mask;
 	} regulator_info[] = {
-		RTQ2208_REGULATOR_INFO(buck-b, BUCK_RG_BASE(B)),
-		RTQ2208_REGULATOR_INFO(buck-c, BUCK_RG_BASE(C)),
-		RTQ2208_REGULATOR_INFO(buck-d, BUCK_RG_BASE(D)),
-		RTQ2208_REGULATOR_INFO(buck-a, BUCK_RG_BASE(A)),
-		RTQ2208_REGULATOR_INFO(buck-f, BUCK_RG_BASE(F)),
-		RTQ2208_REGULATOR_INFO(buck-g, BUCK_RG_BASE(G)),
-		RTQ2208_REGULATOR_INFO(buck-h, BUCK_RG_BASE(H)),
-		RTQ2208_REGULATOR_INFO(buck-e, BUCK_RG_BASE(E)),
-		RTQ2208_REGULATOR_INFO(ldo2, LDO_RG_BASE(2)),
-		RTQ2208_REGULATOR_INFO(ldo1, LDO_RG_BASE(1)),
+		BUCK_INFO("buck-b", B),
+		BUCK_INFO("buck-c", C),
+		BUCK_INFO("buck-d", D),
+		BUCK_INFO("buck-a", A),
+		BUCK_INFO("buck-f", F),
+		BUCK_INFO("buck-g", G),
+		BUCK_INFO("buck-h", H),
+		BUCK_INFO("buck-e", E),
+		LDO_INFO("ldo2", 2),
+		LDO_INFO("ldo1", 1),
 	}, *curr_info;
 
 	curr_info = regulator_info + idx;
@@ -401,15 +425,13 @@ static void rtq2208_init_regulator_desc(struct rtq2208_regulator_desc *rdesc, in
 	desc->owner = THIS_MODULE;
 	desc->type = REGULATOR_VOLTAGE;
 	desc->enable_mask = mtp_sel ? MTP_SEL_MASK(1) : MTP_SEL_MASK(0);
-	desc->active_discharge_on = RTQ2208_EN_DIS_MASK;
+	desc->enable_reg = curr_info->enable_reg;
 	desc->active_discharge_off = 0;
-	desc->active_discharge_mask = RTQ2208_EN_DIS_MASK;
 
 	rdesc->mode_mask = RTQ2208_BUCK_NRMODE_MASK;
 
 	if (idx >= RTQ2208_BUCK_B && idx <= RTQ2208_BUCK_E) {
 		/* init buck desc */
-		desc->enable_reg = BUCK_RG_SHIFT(curr_info->base, 2);
 		desc->ops = &rtq2208_regulator_buck_ops;
 		desc->vsel_reg = curr_info->base + VSEL_SHIFT(mtp_sel);
 		desc->vsel_mask = RTQ2208_BUCK_NR_MTP_SEL_MASK;
@@ -417,8 +439,10 @@ static void rtq2208_init_regulator_desc(struct rtq2208_regulator_desc *rdesc, in
 		desc->linear_ranges = rtq2208_vout_range;
 		desc->n_linear_ranges = ARRAY_SIZE(rtq2208_vout_range);
 		desc->ramp_reg = BUCK_RG_SHIFT(curr_info->base, 5);
-		desc->active_discharge_reg = curr_info->base;
 		desc->of_map_mode = rtq2208_of_map_mode;
+		desc->active_discharge_reg = curr_info->dis_reg;
+		desc->active_discharge_on = RTQ2208_EN_DIS_MASK;
+		desc->active_discharge_mask = RTQ2208_EN_DIS_MASK;
 
 		rdesc->mode_reg = BUCK_RG_SHIFT(curr_info->base, 2);
 		rdesc->suspend_config_reg = BUCK_RG_SHIFT(curr_info->base, 4);
@@ -426,14 +450,11 @@ static void rtq2208_init_regulator_desc(struct rtq2208_regulator_desc *rdesc, in
 		rdesc->suspend_mode_mask = RTQ2208_BUCK_STRMODE_MASK;
 	} else {
 		/* init ldo desc */
-		desc->enable_reg = curr_info->base;
-		desc->ops = &rtq2208_regulator_ldo_ops;
-		desc->n_voltages = 1;
-		desc->active_discharge_reg = LDO_RG_SHIFT(curr_info->base, 2);
-
-		rtq2208_ldo_match[*ldo_idx].name = desc->name;
-		rtq2208_ldo_match[*ldo_idx].driver_data = rdesc;
-		rtq2208_ldo_match[(*ldo_idx)++].desc = desc;
+		desc->active_discharge_reg = RTQ2208_REG_LDO_DVS_CTRL;
+		desc->active_discharge_on = curr_info->dis_on;
+		desc->active_discharge_mask = curr_info->dis_mask;
+		desc->vsel_reg = RTQ2208_REG_LDO_DVS_CTRL;
+		desc->vsel_mask = curr_info->vsel_mask;
 
 		rdesc->suspend_config_reg = curr_info->base;
 		rdesc->suspend_enable_mask = RTQ2208_LDO_EN_STR_MASK;
@@ -443,8 +464,7 @@ static void rtq2208_init_regulator_desc(struct rtq2208_regulator_desc *rdesc, in
 static int rtq2208_parse_regulator_dt_data(int n_regulator, const unsigned int *regulator_idx_table,
 		struct rtq2208_regulator_desc *rdesc[RTQ2208_LDO_MAX], struct device *dev)
 {
-	struct of_regulator_match rtq2208_ldo_match[2];
-	int mtp_sel, ret, i, idx, ldo_idx = 0;
+	int mtp_sel, i, idx, ret;
 
 	/* get mtp_sel0 or mtp_sel1 */
 	mtp_sel = device_property_read_bool(dev, "richtek,mtp-sel-high");
@@ -456,11 +476,15 @@ static int rtq2208_parse_regulator_dt_data(int n_regulator, const unsigned int *
 		if (!rdesc[i])
 			return -ENOMEM;
 
-		rtq2208_init_regulator_desc(rdesc[i], mtp_sel, idx, rtq2208_ldo_match, &ldo_idx);
+		rtq2208_init_regulator_desc(rdesc[i], mtp_sel, idx);
+
+		/* init ldo dvs ability */
+		if (idx >= RTQ2208_LDO2)
+			rtq2208_ldo_match[idx - RTQ2208_LDO2].desc = &rdesc[i]->desc;
 	}
 
 	/* init ldo fixed_uV */
-	ret = rtq2208_of_get_fixed_voltage(dev, rtq2208_ldo_match, ldo_idx);
+	ret = rtq2208_of_get_ldo_dvs_ability(dev);
 	if (ret)
 		return dev_err_probe(dev, ret, "Failed to get ldo fixed_uV\n");
 
diff --git a/drivers/regulator/rtq6752-regulator.c b/drivers/regulator/rtq6752-regulator.c
index 8176e5ab06..d35d844eff 100644
--- a/drivers/regulator/rtq6752-regulator.c
+++ b/drivers/regulator/rtq6752-regulator.c
@@ -209,7 +209,7 @@ static const struct reg_default rtq6752_reg_defaults[] = {
 static const struct regmap_config rtq6752_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.max_register = RTQ6752_REG_FAULT,
 	.reg_defaults = rtq6752_reg_defaults,
 	.num_reg_defaults = ARRAY_SIZE(rtq6752_reg_defaults),
diff --git a/drivers/regulator/sun20i-regulator.c b/drivers/regulator/sun20i-regulator.c
new file mode 100644
index 0000000000..e09be44859
--- /dev/null
+++ b/drivers/regulator/sun20i-regulator.c
@@ -0,0 +1,157 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright (c) 2021-2022 Samuel Holland <samuel@sholland.org>
+//
+
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/regulator/driver.h>
+
+#define SUN20I_SYS_LDO_CTRL_REG		0x150
+
+struct sun20i_regulator_data {
+	const struct regulator_desc	*descs;
+	unsigned int			ndescs;
+};
+
+/* regulator_list_voltage_linear() modified for the non-integral uV_step. */
+static int sun20i_d1_system_ldo_list_voltage(struct regulator_dev *rdev,
+					     unsigned int selector)
+{
+	const struct regulator_desc *desc = rdev->desc;
+	unsigned int fraction, uV;
+
+	if (selector >= desc->n_voltages)
+		return -EINVAL;
+
+	uV = desc->min_uV + (desc->uV_step * selector);
+	fraction = selector + (desc->min_uV % 4);
+
+	if (uV > 1606667)
+		uV += 6667;
+	else
+		fraction++;
+
+	/* Produce correctly-rounded absolute voltages. */
+	return uV + (fraction / 3);
+}
+
+static const struct regulator_ops sun20i_d1_system_ldo_ops = {
+	.list_voltage		= sun20i_d1_system_ldo_list_voltage,
+	.map_voltage		= regulator_map_voltage_ascend,
+	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+};
+
+static const struct regulator_desc sun20i_d1_system_ldo_descs[] = {
+	{
+		.name		= "ldoa",
+		.supply_name	= "ldo-in",
+		.of_match	= "ldoa",
+		.ops		= &sun20i_d1_system_ldo_ops,
+		.type		= REGULATOR_VOLTAGE,
+		.owner		= THIS_MODULE,
+		.n_voltages	= 32,
+		.min_uV		= 1593333,
+		.uV_step	= 13333, /* repeating */
+		.vsel_reg	= SUN20I_SYS_LDO_CTRL_REG,
+		.vsel_mask	= GENMASK(7, 0),
+	},
+	{
+		.name		= "ldob",
+		.supply_name	= "ldo-in",
+		.of_match	= "ldob",
+		.ops		= &sun20i_d1_system_ldo_ops,
+		.type		= REGULATOR_VOLTAGE,
+		.owner		= THIS_MODULE,
+		.n_voltages	= 64,
+		.min_uV		= 1166666,
+		.uV_step	= 13333, /* repeating */
+		.vsel_reg	= SUN20I_SYS_LDO_CTRL_REG,
+		.vsel_mask	= GENMASK(15, 8),
+	},
+};
+
+static const struct sun20i_regulator_data sun20i_d1_system_ldos = {
+	.descs	= sun20i_d1_system_ldo_descs,
+	.ndescs	= ARRAY_SIZE(sun20i_d1_system_ldo_descs),
+};
+
+static struct regmap *sun20i_regulator_get_regmap(struct device *dev)
+{
+	struct regmap *regmap;
+
+	/*
+	 * First try the syscon interface. The system control device is not
+	 * compatible with "syscon", so fall back to getting the regmap from
+	 * its platform device. This is ugly, but required for devicetree
+	 * backward compatibility.
+	 */
+	regmap = syscon_node_to_regmap(dev->parent->of_node);
+	if (!IS_ERR(regmap))
+		return regmap;
+
+	regmap = dev_get_regmap(dev->parent, NULL);
+	if (regmap)
+		return regmap;
+
+	return ERR_PTR(-EPROBE_DEFER);
+}
+
+static int sun20i_regulator_probe(struct platform_device *pdev)
+{
+	const struct sun20i_regulator_data *data;
+	struct device *dev = &pdev->dev;
+	struct regulator_config config;
+	struct regmap *regmap;
+
+	data = of_device_get_match_data(dev);
+	if (!data)
+		return -EINVAL;
+
+	regmap = sun20i_regulator_get_regmap(dev);
+	if (IS_ERR(regmap))
+		return dev_err_probe(dev, PTR_ERR(regmap), "Failed to get regmap\n");
+
+	config = (struct regulator_config) {
+		.dev	= dev,
+		.regmap	= regmap,
+	};
+
+	for (unsigned int i = 0; i < data->ndescs; ++i) {
+		const struct regulator_desc *desc = &data->descs[i];
+		struct regulator_dev *rdev;
+
+		rdev = devm_regulator_register(dev, desc, &config);
+		if (IS_ERR(rdev))
+			return PTR_ERR(rdev);
+	}
+
+	return 0;
+}
+
+static const struct of_device_id sun20i_regulator_of_match[] = {
+	{
+		.compatible = "allwinner,sun20i-d1-system-ldos",
+		.data = &sun20i_d1_system_ldos,
+	},
+	{ },
+};
+MODULE_DEVICE_TABLE(of, sun20i_regulator_of_match);
+
+static struct platform_driver sun20i_regulator_driver = {
+	.probe	= sun20i_regulator_probe,
+	.driver	= {
+		.name		= "sun20i-regulator",
+		.of_match_table	= sun20i_regulator_of_match,
+	},
+};
+module_platform_driver(sun20i_regulator_driver);
+
+MODULE_AUTHOR("Samuel Holland <samuel@sholland.org>");
+MODULE_DESCRIPTION("Allwinner D1 internal LDO driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/regulator/tps51632-regulator.c b/drivers/regulator/tps51632-regulator.c
index 5199e04373..3a384bf9d2 100644
--- a/drivers/regulator/tps51632-regulator.c
+++ b/drivers/regulator/tps51632-regulator.c
@@ -199,7 +199,7 @@ static const struct regmap_config tps51632_regmap_config = {
 	.readable_reg		= is_read_reg,
 	.volatile_reg		= is_volatile_reg,
 	.max_register		= TPS51632_MAX_REG - 1,
-	.cache_type		= REGCACHE_RBTREE,
+	.cache_type		= REGCACHE_MAPLE,
 };
 
 #if defined(CONFIG_OF)
diff --git a/drivers/regulator/tps62360-regulator.c b/drivers/regulator/tps62360-regulator.c
index 32e1a05a57..be6a6702cb 100644
--- a/drivers/regulator/tps62360-regulator.c
+++ b/drivers/regulator/tps62360-regulator.c
@@ -275,7 +275,7 @@ static const struct regmap_config tps62360_regmap_config = {
 	.reg_bits		= 8,
 	.val_bits		= 8,
 	.max_register		= REG_CHIPID,
-	.cache_type		= REGCACHE_RBTREE,
+	.cache_type		= REGCACHE_MAPLE,
 };
 
 static struct tps62360_regulator_platform_data *
diff --git a/drivers/regulator/tps6594-regulator.c b/drivers/regulator/tps6594-regulator.c
index 5fad61785e..ac53792e3f 100644
--- a/drivers/regulator/tps6594-regulator.c
+++ b/drivers/regulator/tps6594-regulator.c
@@ -18,10 +18,13 @@
 
 #include <linux/mfd/tps6594.h>
 
-#define BUCK_NB		5
-#define LDO_NB		4
-#define MULTI_PHASE_NB	4
-#define REGS_INT_NB	4
+#define BUCK_NB			5
+#define LDO_NB			4
+#define MULTI_PHASE_NB		4
+/* TPS6593 and LP8764 supports OV, UV, SC, ILIM */
+#define REGS_INT_NB		4
+/* TPS65224 supports OV or UV */
+#define TPS65224_REGS_INT_NB	1
 
 enum tps6594_regulator_id {
 	/* DCDC's */
@@ -66,6 +69,15 @@ static struct tps6594_regulator_irq_type tps6594_ext_regulator_irq_types[] = {
 	  REGULATOR_EVENT_OVER_VOLTAGE_WARN },
 };
 
+static struct tps6594_regulator_irq_type tps65224_ext_regulator_irq_types[] = {
+	{ TPS65224_IRQ_NAME_VCCA_UVOV, "VCCA", "voltage out of range",
+	  REGULATOR_EVENT_REGULATION_OUT },
+	{ TPS65224_IRQ_NAME_VMON1_UVOV, "VMON1", "voltage out of range",
+	  REGULATOR_EVENT_REGULATION_OUT },
+	{ TPS65224_IRQ_NAME_VMON2_UVOV, "VMON2", "voltage out of range",
+	  REGULATOR_EVENT_REGULATION_OUT },
+};
+
 struct tps6594_regulator_irq_data {
 	struct device *dev;
 	struct tps6594_regulator_irq_type *type;
@@ -122,6 +134,27 @@ static const struct linear_range ldos_4_ranges[] = {
 	REGULATOR_LINEAR_RANGE(1200000, 0x20, 0x74, 25000),
 };
 
+/* Voltage range for TPS65224 Bucks and LDOs */
+static const struct linear_range tps65224_bucks_1_ranges[] = {
+	REGULATOR_LINEAR_RANGE(500000, 0x0a, 0x0e, 20000),
+	REGULATOR_LINEAR_RANGE(600000, 0x0f, 0x72, 5000),
+	REGULATOR_LINEAR_RANGE(1100000, 0x73, 0xaa, 10000),
+	REGULATOR_LINEAR_RANGE(1660000, 0xab, 0xfd, 20000),
+};
+
+static const struct linear_range tps65224_bucks_2_3_4_ranges[] = {
+	REGULATOR_LINEAR_RANGE(500000, 0x0, 0x1a, 25000),
+	REGULATOR_LINEAR_RANGE(1200000, 0x1b, 0x45, 50000),
+};
+
+static const struct linear_range tps65224_ldos_1_ranges[] = {
+	REGULATOR_LINEAR_RANGE(1200000, 0xC, 0x36, 50000),
+};
+
+static const struct linear_range tps65224_ldos_2_3_ranges[] = {
+	REGULATOR_LINEAR_RANGE(600000, 0x0, 0x38, 50000),
+};
+
 /* Operations permitted on BUCK1/2/3/4/5 */
 static const struct regulator_ops tps6594_bucks_ops = {
 	.is_enabled		= regulator_is_enabled_regmap,
@@ -197,6 +230,38 @@ static const struct regulator_desc buck_regs[] = {
 			  4, 0, 0, NULL, 0, 0),
 };
 
+/* Buck configuration for TPS65224 */
+static const struct regulator_desc tps65224_buck_regs[] = {
+	TPS6594_REGULATOR("BUCK1", "buck1", TPS6594_BUCK_1,
+			  REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS65224_MASK_BUCK1_VSET,
+			  TPS6594_REG_BUCKX_VOUT_1(0),
+			  TPS65224_MASK_BUCK1_VSET,
+			  TPS6594_REG_BUCKX_CTRL(0),
+			  TPS6594_BIT_BUCK_EN, 0, 0, tps65224_bucks_1_ranges,
+			  4, 0, 0, NULL, 0, 0),
+	TPS6594_REGULATOR("BUCK2", "buck2", TPS6594_BUCK_2,
+			  REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS65224_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_VOUT_1(1),
+			  TPS65224_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_CTRL(1),
+			  TPS6594_BIT_BUCK_EN, 0, 0, tps65224_bucks_2_3_4_ranges,
+			  4, 0, 0, NULL, 0, 0),
+	TPS6594_REGULATOR("BUCK3", "buck3", TPS6594_BUCK_3,
+			  REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS65224_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_VOUT_1(2),
+			  TPS65224_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_CTRL(2),
+			  TPS6594_BIT_BUCK_EN, 0, 0, tps65224_bucks_2_3_4_ranges,
+			  4, 0, 0, NULL, 0, 0),
+	TPS6594_REGULATOR("BUCK4", "buck4", TPS6594_BUCK_4,
+			  REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS65224_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_VOUT_1(3),
+			  TPS65224_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_CTRL(3),
+			  TPS6594_BIT_BUCK_EN, 0, 0, tps65224_bucks_2_3_4_ranges,
+			  4, 0, 0, NULL, 0, 0),
+};
+
 static struct tps6594_regulator_irq_type tps6594_buck1_irq_types[] = {
 	{ TPS6594_IRQ_NAME_BUCK1_OV, "BUCK1", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
 	{ TPS6594_IRQ_NAME_BUCK1_UV, "BUCK1", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
@@ -269,6 +334,41 @@ static struct tps6594_regulator_irq_type tps6594_ldo4_irq_types[] = {
 	  REGULATOR_EVENT_OVER_CURRENT },
 };
 
+static struct tps6594_regulator_irq_type tps65224_buck1_irq_types[] = {
+	{ TPS65224_IRQ_NAME_BUCK1_UVOV, "BUCK1", "voltage out of range",
+	  REGULATOR_EVENT_REGULATION_OUT },
+};
+
+static struct tps6594_regulator_irq_type tps65224_buck2_irq_types[] = {
+	{ TPS65224_IRQ_NAME_BUCK2_UVOV, "BUCK2", "voltage out of range",
+	  REGULATOR_EVENT_REGULATION_OUT },
+};
+
+static struct tps6594_regulator_irq_type tps65224_buck3_irq_types[] = {
+	{ TPS65224_IRQ_NAME_BUCK3_UVOV, "BUCK3", "voltage out of range",
+	  REGULATOR_EVENT_REGULATION_OUT },
+};
+
+static struct tps6594_regulator_irq_type tps65224_buck4_irq_types[] = {
+	{ TPS65224_IRQ_NAME_BUCK4_UVOV, "BUCK4", "voltage out of range",
+	  REGULATOR_EVENT_REGULATION_OUT },
+};
+
+static struct tps6594_regulator_irq_type tps65224_ldo1_irq_types[] = {
+	{ TPS65224_IRQ_NAME_LDO1_UVOV, "LDO1", "voltage out of range",
+	  REGULATOR_EVENT_REGULATION_OUT },
+};
+
+static struct tps6594_regulator_irq_type tps65224_ldo2_irq_types[] = {
+	{ TPS65224_IRQ_NAME_LDO2_UVOV, "LDO2", "voltage out of range",
+	  REGULATOR_EVENT_REGULATION_OUT },
+};
+
+static struct tps6594_regulator_irq_type tps65224_ldo3_irq_types[] = {
+	{ TPS65224_IRQ_NAME_LDO3_UVOV, "LDO3", "voltage out of range",
+	  REGULATOR_EVENT_REGULATION_OUT },
+};
+
 static struct tps6594_regulator_irq_type *tps6594_bucks_irq_types[] = {
 	tps6594_buck1_irq_types,
 	tps6594_buck2_irq_types,
@@ -284,7 +384,20 @@ static struct tps6594_regulator_irq_type *tps6594_ldos_irq_types[] = {
 	tps6594_ldo4_irq_types,
 };
 
-static const struct regulator_desc multi_regs[] = {
+static struct tps6594_regulator_irq_type *tps65224_bucks_irq_types[] = {
+	tps65224_buck1_irq_types,
+	tps65224_buck2_irq_types,
+	tps65224_buck3_irq_types,
+	tps65224_buck4_irq_types,
+};
+
+static struct tps6594_regulator_irq_type *tps65224_ldos_irq_types[] = {
+	tps65224_ldo1_irq_types,
+	tps65224_ldo2_irq_types,
+	tps65224_ldo3_irq_types,
+};
+
+static const struct regulator_desc tps6594_multi_regs[] = {
 	TPS6594_REGULATOR("BUCK12", "buck12", TPS6594_BUCK_1,
 			  REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,
 			  TPS6594_REG_BUCKX_VOUT_1(0),
@@ -315,7 +428,17 @@ static const struct regulator_desc multi_regs[] = {
 			  4, 4000, 0, NULL, 0, 0),
 };
 
-static const struct regulator_desc ldo_regs[] = {
+static const struct regulator_desc tps65224_multi_regs[] = {
+	TPS6594_REGULATOR("BUCK12", "buck12", TPS6594_BUCK_1,
+			  REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS65224_MASK_BUCK1_VSET,
+			  TPS6594_REG_BUCKX_VOUT_1(0),
+			  TPS65224_MASK_BUCK1_VSET,
+			  TPS6594_REG_BUCKX_CTRL(0),
+			  TPS6594_BIT_BUCK_EN, 0, 0, tps65224_bucks_1_ranges,
+			  4, 4000, 0, NULL, 0, 0),
+};
+
+static const struct regulator_desc tps6594_ldo_regs[] = {
 	TPS6594_REGULATOR("LDO1", "ldo1", TPS6594_LDO_1,
 			  REGULATOR_VOLTAGE, tps6594_ldos_1_2_3_ops, TPS6594_MASK_LDO123_VSET,
 			  TPS6594_REG_LDOX_VOUT(0),
@@ -346,6 +469,30 @@ static const struct regulator_desc ldo_regs[] = {
 			  1, 0, 0, NULL, 0, 0),
 };
 
+static const struct regulator_desc tps65224_ldo_regs[] = {
+	TPS6594_REGULATOR("LDO1", "ldo1", TPS6594_LDO_1,
+			  REGULATOR_VOLTAGE, tps6594_ldos_1_2_3_ops, TPS6594_MASK_LDO123_VSET,
+			  TPS6594_REG_LDOX_VOUT(0),
+			  TPS6594_MASK_LDO123_VSET,
+			  TPS6594_REG_LDOX_CTRL(0),
+			  TPS6594_BIT_LDO_EN, 0, 0, tps65224_ldos_1_ranges,
+			  1, 0, 0, NULL, 0, TPS6594_BIT_LDO_BYPASS),
+	TPS6594_REGULATOR("LDO2", "ldo2", TPS6594_LDO_2,
+			  REGULATOR_VOLTAGE, tps6594_ldos_1_2_3_ops, TPS6594_MASK_LDO123_VSET,
+			  TPS6594_REG_LDOX_VOUT(1),
+			  TPS6594_MASK_LDO123_VSET,
+			  TPS6594_REG_LDOX_CTRL(1),
+			  TPS6594_BIT_LDO_EN, 0, 0, tps65224_ldos_2_3_ranges,
+			  1, 0, 0, NULL, 0, TPS6594_BIT_LDO_BYPASS),
+	TPS6594_REGULATOR("LDO3", "ldo3", TPS6594_LDO_3,
+			  REGULATOR_VOLTAGE, tps6594_ldos_1_2_3_ops, TPS6594_MASK_LDO123_VSET,
+			  TPS6594_REG_LDOX_VOUT(2),
+			  TPS6594_MASK_LDO123_VSET,
+			  TPS6594_REG_LDOX_CTRL(2),
+			  TPS6594_BIT_LDO_EN, 0, 0, tps65224_ldos_2_3_ranges,
+			  1, 0, 0, NULL, 0, TPS6594_BIT_LDO_BYPASS),
+};
+
 static irqreturn_t tps6594_regulator_irq_handler(int irq, void *data)
 {
 	struct tps6594_regulator_irq_data *irq_data = data;
@@ -369,17 +516,18 @@ static irqreturn_t tps6594_regulator_irq_handler(int irq, void *data)
 static int tps6594_request_reg_irqs(struct platform_device *pdev,
 				    struct regulator_dev *rdev,
 				    struct tps6594_regulator_irq_data *irq_data,
-				    struct tps6594_regulator_irq_type *tps6594_regs_irq_types,
+				    struct tps6594_regulator_irq_type *regs_irq_types,
+				    size_t interrupt_cnt,
 				    int *irq_idx)
 {
 	struct tps6594_regulator_irq_type *irq_type;
 	struct tps6594 *tps = dev_get_drvdata(pdev->dev.parent);
-	int j;
+	size_t j;
 	int irq;
 	int error;
 
-	for (j = 0; j < REGS_INT_NB; j++) {
-		irq_type = &tps6594_regs_irq_types[j];
+	for (j = 0; j < interrupt_cnt; j++) {
+		irq_type = &regs_irq_types[j];
 		irq = platform_get_irq_byname(pdev, irq_type->irq_name);
 		if (irq < 0)
 			return -EINVAL;
@@ -411,23 +559,47 @@ static int tps6594_regulator_probe(struct platform_device *pdev)
 	struct tps6594_regulator_irq_data *irq_data;
 	struct tps6594_ext_regulator_irq_data *irq_ext_reg_data;
 	struct tps6594_regulator_irq_type *irq_type;
-	u8 buck_configured[BUCK_NB] = { 0 };
-	u8 buck_multi[MULTI_PHASE_NB] = { 0 };
-	static const char * const multiphases[] = {"buck12", "buck123", "buck1234", "buck34"};
+	struct tps6594_regulator_irq_type *irq_types;
+	bool buck_configured[BUCK_NB] = { false };
+	bool buck_multi[MULTI_PHASE_NB] = { false };
+
 	static const char *npname;
-	int error, i, irq, multi, delta;
+	int error, i, irq, multi;
 	int irq_idx = 0;
 	int buck_idx = 0;
-	size_t ext_reg_irq_nb = 2;
+	int nr_ldo;
+	int nr_buck;
+	int nr_types;
+	unsigned int irq_count;
+	unsigned int multi_phase_cnt;
 	size_t reg_irq_nb;
+	struct tps6594_regulator_irq_type **bucks_irq_types;
+	const struct regulator_desc *multi_regs;
+	struct tps6594_regulator_irq_type **ldos_irq_types;
+	const struct regulator_desc *ldo_regs;
+	size_t interrupt_count;
+
+	if (tps->chip_id == TPS65224) {
+		bucks_irq_types = tps65224_bucks_irq_types;
+		interrupt_count = ARRAY_SIZE(tps65224_buck1_irq_types);
+		multi_regs = tps65224_multi_regs;
+		ldos_irq_types = tps65224_ldos_irq_types;
+		ldo_regs = tps65224_ldo_regs;
+		multi_phase_cnt = ARRAY_SIZE(tps65224_multi_regs);
+	} else {
+		bucks_irq_types = tps6594_bucks_irq_types;
+		interrupt_count = ARRAY_SIZE(tps6594_buck1_irq_types);
+		multi_regs = tps6594_multi_regs;
+		ldos_irq_types = tps6594_ldos_irq_types;
+		ldo_regs = tps6594_ldo_regs;
+		multi_phase_cnt = ARRAY_SIZE(tps6594_multi_regs);
+	}
+
 	enum {
 		MULTI_BUCK12,
+		MULTI_BUCK12_34,
 		MULTI_BUCK123,
 		MULTI_BUCK1234,
-		MULTI_BUCK12_34,
-		MULTI_FIRST = MULTI_BUCK12,
-		MULTI_LAST = MULTI_BUCK12_34,
-		MULTI_NUM = MULTI_LAST - MULTI_FIRST + 1
 	};
 
 	config.dev = tps->dev;
@@ -442,61 +614,64 @@ static int tps6594_regulator_probe(struct platform_device *pdev)
 	 * In case of Multiphase configuration, value should be defined for
 	 * buck_configured to avoid creating bucks for every buck in multiphase
 	 */
-	for (multi = MULTI_FIRST; multi < MULTI_NUM; multi++) {
-		np = of_find_node_by_name(tps->dev->of_node, multiphases[multi]);
+	for (multi = 0; multi < multi_phase_cnt; multi++) {
+		np = of_find_node_by_name(tps->dev->of_node, multi_regs[multi].supply_name);
 		npname = of_node_full_name(np);
 		np_pmic_parent = of_get_parent(of_get_parent(np));
 		if (of_node_cmp(of_node_full_name(np_pmic_parent), tps->dev->of_node->full_name))
 			continue;
-		delta = strcmp(npname, multiphases[multi]);
-		if (!delta) {
+		if (strcmp(npname, multi_regs[multi].supply_name) == 0) {
 			switch (multi) {
 			case MULTI_BUCK12:
-				buck_multi[0] = 1;
-				buck_configured[0] = 1;
-				buck_configured[1] = 1;
+				buck_multi[0] = true;
+				buck_configured[0] = true;
+				buck_configured[1] = true;
 				break;
 			/* multiphase buck34 is supported only with buck12 */
 			case MULTI_BUCK12_34:
-				buck_multi[0] = 1;
-				buck_multi[1] = 1;
-				buck_configured[0] = 1;
-				buck_configured[1] = 1;
-				buck_configured[2] = 1;
-				buck_configured[3] = 1;
+				buck_multi[0] = true;
+				buck_multi[1] = true;
+				buck_configured[0] = true;
+				buck_configured[1] = true;
+				buck_configured[2] = true;
+				buck_configured[3] = true;
 				break;
 			case MULTI_BUCK123:
-				buck_multi[2] = 1;
-				buck_configured[0] = 1;
-				buck_configured[1] = 1;
-				buck_configured[2] = 1;
+				buck_multi[2] = true;
+				buck_configured[0] = true;
+				buck_configured[1] = true;
+				buck_configured[2] = true;
 				break;
 			case MULTI_BUCK1234:
-				buck_multi[3] = 1;
-				buck_configured[0] = 1;
-				buck_configured[1] = 1;
-				buck_configured[2] = 1;
-				buck_configured[3] = 1;
+				buck_multi[3] = true;
+				buck_configured[0] = true;
+				buck_configured[1] = true;
+				buck_configured[2] = true;
+				buck_configured[3] = true;
 				break;
 			}
 		}
 	}
 
-	if (tps->chip_id == LP8764) {
-		/* There is only 4 buck on LP8764 */
-		buck_configured[4] = 1;
-		reg_irq_nb = size_mul(REGS_INT_NB, (BUCK_NB - 1));
+	if (tps->chip_id == TPS65224) {
+		nr_buck = ARRAY_SIZE(tps65224_buck_regs);
+		nr_ldo = ARRAY_SIZE(tps65224_ldo_regs);
+		nr_types = TPS65224_REGS_INT_NB;
 	} else {
-		reg_irq_nb = size_mul(REGS_INT_NB, (size_add(BUCK_NB, LDO_NB)));
+		nr_buck = ARRAY_SIZE(buck_regs);
+		nr_ldo = (tps->chip_id == LP8764) ? 0 : ARRAY_SIZE(tps6594_ldo_regs);
+		nr_types = REGS_INT_NB;
 	}
 
+	reg_irq_nb = nr_types * (nr_buck + nr_ldo);
+
 	irq_data = devm_kmalloc_array(tps->dev, reg_irq_nb,
 				      sizeof(struct tps6594_regulator_irq_data), GFP_KERNEL);
 	if (!irq_data)
 		return -ENOMEM;
 
-	for (i = 0; i < MULTI_PHASE_NB; i++) {
-		if (buck_multi[i] == 0)
+	for (i = 0; i < multi_phase_cnt; i++) {
+		if (!buck_multi[i])
 			continue;
 
 		rdev = devm_regulator_register(&pdev->dev, &multi_regs[i], &config);
@@ -506,52 +681,60 @@ static int tps6594_regulator_probe(struct platform_device *pdev)
 					     pdev->name);
 
 		/* config multiphase buck12+buck34 */
-		if (i == 1)
+		if (i == MULTI_BUCK12_34)
 			buck_idx = 2;
+
 		error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
-						 tps6594_bucks_irq_types[buck_idx], &irq_idx);
+						 bucks_irq_types[buck_idx],
+						 interrupt_count, &irq_idx);
 		if (error)
 			return error;
+
 		error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
-						 tps6594_bucks_irq_types[buck_idx + 1], &irq_idx);
+						 bucks_irq_types[buck_idx + 1],
+						 interrupt_count, &irq_idx);
 		if (error)
 			return error;
 
-		if (i == 2 || i == 3) {
+		if (i == MULTI_BUCK123 || i == MULTI_BUCK1234) {
 			error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
 							 tps6594_bucks_irq_types[buck_idx + 2],
+							 interrupt_count,
 							 &irq_idx);
 			if (error)
 				return error;
 		}
-		if (i == 3) {
+		if (i == MULTI_BUCK1234) {
 			error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
 							 tps6594_bucks_irq_types[buck_idx + 3],
+							 interrupt_count,
 							 &irq_idx);
 			if (error)
 				return error;
 		}
 	}
 
-	for (i = 0; i < BUCK_NB; i++) {
-		if (buck_configured[i] == 1)
+	for (i = 0; i < nr_buck; i++) {
+		if (buck_configured[i])
 			continue;
 
-		rdev = devm_regulator_register(&pdev->dev, &buck_regs[i], &config);
+		const struct regulator_desc *buck_cfg = (tps->chip_id == TPS65224) ?
+							 tps65224_buck_regs : buck_regs;
+
+		rdev = devm_regulator_register(&pdev->dev, &buck_cfg[i], &config);
 		if (IS_ERR(rdev))
 			return dev_err_probe(tps->dev, PTR_ERR(rdev),
-					     "failed to register %s regulator\n",
-					     pdev->name);
+					     "failed to register %s regulator\n", pdev->name);
 
 		error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
-						 tps6594_bucks_irq_types[i], &irq_idx);
+						 bucks_irq_types[i], interrupt_count, &irq_idx);
 		if (error)
 			return error;
 	}
 
-	/* LP8764 dosen't have LDO */
+	/* LP8764 doesn't have LDO */
 	if (tps->chip_id != LP8764) {
-		for (i = 0; i < ARRAY_SIZE(ldo_regs); i++) {
+		for (i = 0; i < nr_ldo; i++) {
 			rdev = devm_regulator_register(&pdev->dev, &ldo_regs[i], &config);
 			if (IS_ERR(rdev))
 				return dev_err_probe(tps->dev, PTR_ERR(rdev),
@@ -559,26 +742,34 @@ static int tps6594_regulator_probe(struct platform_device *pdev)
 						     pdev->name);
 
 			error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
-							 tps6594_ldos_irq_types[i],
+							 ldos_irq_types[i], interrupt_count,
 							 &irq_idx);
 			if (error)
 				return error;
 		}
 	}
 
-	if (tps->chip_id == LP8764)
-		ext_reg_irq_nb = ARRAY_SIZE(tps6594_ext_regulator_irq_types);
+	if (tps->chip_id == TPS65224) {
+		irq_types = tps65224_ext_regulator_irq_types;
+		irq_count = ARRAY_SIZE(tps65224_ext_regulator_irq_types);
+	} else {
+		irq_types = tps6594_ext_regulator_irq_types;
+		if (tps->chip_id == LP8764)
+			irq_count = ARRAY_SIZE(tps6594_ext_regulator_irq_types);
+		else
+			/* TPS6593 supports only VCCA OV and UV */
+			irq_count = 2;
+	}
 
 	irq_ext_reg_data = devm_kmalloc_array(tps->dev,
-					ext_reg_irq_nb,
-					sizeof(struct tps6594_ext_regulator_irq_data),
-					GFP_KERNEL);
+					      irq_count,
+					      sizeof(struct tps6594_ext_regulator_irq_data),
+					      GFP_KERNEL);
 	if (!irq_ext_reg_data)
 		return -ENOMEM;
 
-	for (i = 0; i < ext_reg_irq_nb; ++i) {
-		irq_type = &tps6594_ext_regulator_irq_types[i];
-
+	for (i = 0; i < irq_count; ++i) {
+		irq_type = &irq_types[i];
 		irq = platform_get_irq_byname(pdev, irq_type->irq_name);
 		if (irq < 0)
 			return -EINVAL;
@@ -610,5 +801,6 @@ module_platform_driver(tps6594_regulator_driver);
 
 MODULE_ALIAS("platform:tps6594-regulator");
 MODULE_AUTHOR("Jerome Neanne <jneanne@baylibre.com>");
+MODULE_AUTHOR("Nirmala Devi Mal Nadar <m.nirmaladevi@ltts.com>");
 MODULE_DESCRIPTION("TPS6594 voltage regulator driver");
 MODULE_LICENSE("GPL");