openwrt/target/linux/starfive/patches-6.1/0118-driver-regulator-axp20x-Support-AXP15060-variant.patch

From 1b017f3376a5df4a2cd5a120c16723e777fc9a36 Mon Sep 17 00:00:00 2001
From: "ziv.xu" <ziv.xu@starfive.com>
Date: Fri, 4 Aug 2023 13:55:23 +0800
Subject: [PATCH 118/122] driver: regulator: axp20x: Support AXP15060 variant.

Add axp15060 variant support to axp20x

Signed-off-by: ziv.xu <ziv.xu@starfive.com>
---
 drivers/regulator/axp20x-regulator.c | 291 ++++++++++++++++++++++++++-
 1 file changed, 283 insertions(+), 8 deletions(-)

--- a/drivers/regulator/axp20x-regulator.c
+++ b/drivers/regulator/axp20x-regulator.c
@@ -134,6 +134,11 @@
 #define AXP22X_PWR_OUT_DLDO4_MASK	BIT_MASK(6)
 #define AXP22X_PWR_OUT_ALDO3_MASK	BIT_MASK(7)
 
+#define AXP313A_DCDC1_NUM_VOLTAGES	107
+#define AXP313A_DCDC23_NUM_VOLTAGES	88
+#define AXP313A_DCDC_V_OUT_MASK		GENMASK(6, 0)
+#define AXP313A_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)
@@ -270,6 +275,74 @@
 
 #define AXP813_PWR_OUT_DCDC7_MASK	BIT_MASK(6)
 
+#define AXP15060_DCDC1_V_CTRL_MASK		GENMASK(4, 0)
+#define AXP15060_DCDC2_V_CTRL_MASK		GENMASK(6, 0)
+#define AXP15060_DCDC3_V_CTRL_MASK		GENMASK(6, 0)
+#define AXP15060_DCDC4_V_CTRL_MASK		GENMASK(6, 0)
+#define AXP15060_DCDC5_V_CTRL_MASK		GENMASK(6, 0)
+#define AXP15060_DCDC6_V_CTRL_MASK		GENMASK(4, 0)
+#define AXP15060_ALDO1_V_CTRL_MASK		GENMASK(4, 0)
+#define AXP15060_ALDO2_V_CTRL_MASK		GENMASK(4, 0)
+#define AXP15060_ALDO3_V_CTRL_MASK		GENMASK(4, 0)
+#define AXP15060_ALDO4_V_CTRL_MASK		GENMASK(4, 0)
+#define AXP15060_ALDO5_V_CTRL_MASK		GENMASK(4, 0)
+#define AXP15060_BLDO1_V_CTRL_MASK		GENMASK(4, 0)
+#define AXP15060_BLDO2_V_CTRL_MASK		GENMASK(4, 0)
+#define AXP15060_BLDO3_V_CTRL_MASK		GENMASK(4, 0)
+#define AXP15060_BLDO4_V_CTRL_MASK		GENMASK(4, 0)
+#define AXP15060_BLDO5_V_CTRL_MASK		GENMASK(4, 0)
+#define AXP15060_CLDO1_V_CTRL_MASK		GENMASK(4, 0)
+#define AXP15060_CLDO2_V_CTRL_MASK		GENMASK(4, 0)
+#define AXP15060_CLDO3_V_CTRL_MASK		GENMASK(4, 0)
+#define AXP15060_CLDO4_V_CTRL_MASK		GENMASK(5, 0)
+#define AXP15060_CPUSLDO_V_CTRL_MASK		GENMASK(3, 0)
+
+#define AXP15060_PWR_OUT_DCDC1_MASK	BIT_MASK(0)
+#define AXP15060_PWR_OUT_DCDC2_MASK	BIT_MASK(1)
+#define AXP15060_PWR_OUT_DCDC3_MASK	BIT_MASK(2)
+#define AXP15060_PWR_OUT_DCDC4_MASK	BIT_MASK(3)
+#define AXP15060_PWR_OUT_DCDC5_MASK	BIT_MASK(4)
+#define AXP15060_PWR_OUT_DCDC6_MASK	BIT_MASK(5)
+#define AXP15060_PWR_OUT_ALDO1_MASK	BIT_MASK(0)
+#define AXP15060_PWR_OUT_ALDO2_MASK	BIT_MASK(1)
+#define AXP15060_PWR_OUT_ALDO3_MASK	BIT_MASK(2)
+#define AXP15060_PWR_OUT_ALDO4_MASK	BIT_MASK(3)
+#define AXP15060_PWR_OUT_ALDO5_MASK	BIT_MASK(4)
+#define AXP15060_PWR_OUT_BLDO1_MASK	BIT_MASK(5)
+#define AXP15060_PWR_OUT_BLDO2_MASK	BIT_MASK(6)
+#define AXP15060_PWR_OUT_BLDO3_MASK	BIT_MASK(7)
+#define AXP15060_PWR_OUT_BLDO4_MASK	BIT_MASK(0)
+#define AXP15060_PWR_OUT_BLDO5_MASK	BIT_MASK(1)
+#define AXP15060_PWR_OUT_CLDO1_MASK	BIT_MASK(2)
+#define AXP15060_PWR_OUT_CLDO2_MASK	BIT_MASK(3)
+#define AXP15060_PWR_OUT_CLDO3_MASK	BIT_MASK(4)
+#define AXP15060_PWR_OUT_CLDO4_MASK	BIT_MASK(5)
+#define AXP15060_PWR_OUT_CPUSLDO_MASK	BIT_MASK(6)
+#define AXP15060_PWR_OUT_SW_MASK		BIT_MASK(7)
+
+#define AXP15060_DCDC23_POLYPHASE_DUAL_MASK		BIT_MASK(6)
+#define AXP15060_DCDC46_POLYPHASE_DUAL_MASK		BIT_MASK(7)
+
+#define AXP15060_DCDC234_500mV_START	0x00
+#define AXP15060_DCDC234_500mV_STEPS	70
+#define AXP15060_DCDC234_500mV_END		\
+	(AXP15060_DCDC234_500mV_START + AXP15060_DCDC234_500mV_STEPS)
+#define AXP15060_DCDC234_1220mV_START	0x47
+#define AXP15060_DCDC234_1220mV_STEPS	16
+#define AXP15060_DCDC234_1220mV_END		\
+	(AXP15060_DCDC234_1220mV_START + AXP15060_DCDC234_1220mV_STEPS)
+#define AXP15060_DCDC234_NUM_VOLTAGES	88
+
+#define AXP15060_DCDC5_800mV_START	0x00
+#define AXP15060_DCDC5_800mV_STEPS	32
+#define AXP15060_DCDC5_800mV_END		\
+	(AXP15060_DCDC5_800mV_START + AXP15060_DCDC5_800mV_STEPS)
+#define AXP15060_DCDC5_1140mV_START	0x21
+#define AXP15060_DCDC5_1140mV_STEPS	35
+#define AXP15060_DCDC5_1140mV_END		\
+	(AXP15060_DCDC5_1140mV_START + AXP15060_DCDC5_1140mV_STEPS)
+#define AXP15060_DCDC5_NUM_VOLTAGES	69
+
 #define AXP_DESC_IO(_family, _id, _match, _supply, _min, _max, _step, _vreg,	\
 		    _vmask, _ereg, _emask, _enable_val, _disable_val)		\
 	[_family##_##_id] = {							\
@@ -638,6 +711,48 @@ static const struct regulator_desc axp22
 	.ops		= &axp20x_ops_sw,
 };
 
+static const struct linear_range axp313a_dcdc1_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 axp313a_dcdc2_ranges[] = {
+	REGULATOR_LINEAR_RANGE(500000,   0, 70, 10000),
+	REGULATOR_LINEAR_RANGE(1220000, 71, 87, 20000),
+};
+
+/*
+ * This is deviating from the datasheet. The values here are taken from the
+ * BSP driver and have been confirmed by measurements.
+ */
+static const struct linear_range axp313a_dcdc3_ranges[] = {
+	REGULATOR_LINEAR_RANGE(500000,   0,  70, 10000),
+	REGULATOR_LINEAR_RANGE(1220000, 71, 102, 20000),
+};
+
+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_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_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_OUTPUT_CONTROL, BIT(2)),
+	AXP_DESC(AXP313A, ALDO1, "aldo1", "vin1", 500, 3500, 100,
+		 AXP313A_ALDO1_CONRTOL, 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_OUTPUT_CONTROL, BIT(4)),
+	AXP_DESC_FIXED(AXP313A, RTC_LDO, "rtc-ldo", "vin1", 1800),
+};
+
 /* DCDC ranges shared with AXP813 */
 static const struct linear_range axp803_dcdc234_ranges[] = {
 	REGULATOR_LINEAR_RANGE(500000,
@@ -1001,6 +1116,104 @@ static const struct regulator_desc axp81
 		    AXP22X_PWR_OUT_CTRL2, AXP22X_PWR_OUT_DC1SW_MASK),
 };
 
+static const struct linear_range axp15060_dcdc234_ranges[] = {
+	REGULATOR_LINEAR_RANGE(500000,
+			       AXP15060_DCDC234_500mV_START,
+			       AXP15060_DCDC234_500mV_END,
+			       10000),
+	REGULATOR_LINEAR_RANGE(1220000,
+			       AXP15060_DCDC234_1220mV_START,
+			       AXP15060_DCDC234_1220mV_END,
+			       20000),
+};
+
+static const struct linear_range axp15060_dcdc5_ranges[] = {
+	REGULATOR_LINEAR_RANGE(800000,
+			       AXP15060_DCDC5_800mV_START,
+			       AXP15060_DCDC5_800mV_END,
+			       10000),
+	REGULATOR_LINEAR_RANGE(1140000,
+			       AXP15060_DCDC5_1140mV_START,
+			       AXP15060_DCDC5_1140mV_END,
+			       20000),
+};
+
+static const struct regulator_desc axp15060_regulators[] = {
+	AXP_DESC(AXP15060, DCDC1, "dcdc1", "vin1", 1500, 3400, 100,
+		 AXP15060_DCDC1_V_CTRL, AXP15060_DCDC1_V_CTRL_MASK,
+		 AXP15060_PWR_OUT_CTRL1, AXP15060_PWR_OUT_DCDC1_MASK),
+	AXP_DESC_RANGES(AXP15060, DCDC2, "dcdc2", "vin2",
+			axp15060_dcdc234_ranges, AXP15060_DCDC234_NUM_VOLTAGES,
+			AXP15060_DCDC2_V_CTRL, AXP15060_DCDC2_V_CTRL_MASK,
+			AXP15060_PWR_OUT_CTRL1, AXP15060_PWR_OUT_DCDC2_MASK),
+	AXP_DESC_RANGES(AXP15060, DCDC3, "dcdc3", "vin3",
+			axp15060_dcdc234_ranges, AXP15060_DCDC234_NUM_VOLTAGES,
+			AXP15060_DCDC3_V_CTRL, AXP15060_DCDC3_V_CTRL_MASK,
+			AXP15060_PWR_OUT_CTRL1, AXP15060_PWR_OUT_DCDC3_MASK),
+	AXP_DESC_RANGES(AXP15060, DCDC4, "dcdc4", "vin4",
+			axp15060_dcdc234_ranges, AXP15060_DCDC234_NUM_VOLTAGES,
+			AXP15060_DCDC4_V_CTRL, AXP15060_DCDC4_V_CTRL_MASK,
+			AXP15060_PWR_OUT_CTRL1, AXP15060_PWR_OUT_DCDC4_MASK),
+	AXP_DESC_RANGES(AXP15060, DCDC5, "dcdc5", "vin5",
+			axp15060_dcdc5_ranges, AXP15060_DCDC5_NUM_VOLTAGES,
+			AXP15060_DCDC5_V_CTRL, AXP15060_DCDC5_V_CTRL_MASK,
+			AXP15060_PWR_OUT_CTRL1, AXP15060_PWR_OUT_DCDC5_MASK),
+	AXP_DESC(AXP15060, DCDC6, "dcdc6", "vin6", 500, 3400, 100,
+		 AXP15060_DCDC6_V_CTRL, AXP15060_DCDC6_V_CTRL_MASK,
+		 AXP15060_PWR_OUT_CTRL1, AXP15060_PWR_OUT_DCDC6_MASK),
+	AXP_DESC(AXP15060, ALDO1, "aldo1", "aldoin", 700, 3300, 100,
+		 AXP15060_ALDO1_V_CTRL, AXP15060_ALDO1_V_CTRL_MASK,
+		 AXP15060_PWR_OUT_CTRL2, AXP15060_PWR_OUT_ALDO1_MASK),
+	AXP_DESC(AXP15060, ALDO2, "aldo2", "aldoin", 700, 3300, 100,
+		 AXP15060_ALDO2_V_CTRL, AXP15060_ALDO2_V_CTRL_MASK,
+		 AXP15060_PWR_OUT_CTRL2, AXP15060_PWR_OUT_ALDO2_MASK),
+	AXP_DESC(AXP15060, ALDO3, "aldo3", "aldoin", 700, 3300, 100,
+		 AXP15060_ALDO3_V_CTRL, AXP15060_ALDO3_V_CTRL_MASK,
+		 AXP15060_PWR_OUT_CTRL2, AXP15060_PWR_OUT_ALDO3_MASK),
+	AXP_DESC(AXP15060, ALDO4, "aldo4", "aldoin", 700, 3300, 100,
+		 AXP15060_ALDO4_V_CTRL, AXP15060_ALDO4_V_CTRL_MASK,
+		 AXP15060_PWR_OUT_CTRL2, AXP15060_PWR_OUT_ALDO4_MASK),
+	AXP_DESC(AXP15060, ALDO5, "aldo5", "aldoin", 700, 3300, 100,
+		 AXP15060_ALDO5_V_CTRL, AXP15060_ALDO5_V_CTRL_MASK,
+		 AXP15060_PWR_OUT_CTRL2, AXP15060_PWR_OUT_ALDO5_MASK),
+	AXP_DESC(AXP15060, BLDO1, "bldo1", "bldoin", 700, 3300, 100,
+		 AXP15060_BLDO1_V_CTRL, AXP15060_BLDO1_V_CTRL_MASK,
+		 AXP15060_PWR_OUT_CTRL2, AXP15060_PWR_OUT_BLDO1_MASK),
+	AXP_DESC(AXP15060, BLDO2, "bldo2", "bldoin", 700, 3300, 100,
+		 AXP15060_BLDO2_V_CTRL, AXP15060_BLDO2_V_CTRL_MASK,
+		 AXP15060_PWR_OUT_CTRL2, AXP15060_PWR_OUT_BLDO2_MASK),
+	AXP_DESC(AXP15060, BLDO3, "bldo3", "bldoin", 700, 3300, 100,
+		 AXP15060_BLDO3_V_CTRL, AXP15060_BLDO3_V_CTRL_MASK,
+		 AXP15060_PWR_OUT_CTRL2, AXP15060_PWR_OUT_BLDO3_MASK),
+	AXP_DESC(AXP15060, BLDO4, "bldo4", "bldoin", 700, 3300, 100,
+		 AXP15060_BLDO4_V_CTRL, AXP15060_BLDO4_V_CTRL_MASK,
+		 AXP15060_PWR_OUT_CTRL3, AXP15060_PWR_OUT_BLDO4_MASK),
+	AXP_DESC(AXP15060, BLDO5, "bldo5", "bldoin", 700, 3300, 100,
+		 AXP15060_BLDO5_V_CTRL, AXP15060_BLDO5_V_CTRL_MASK,
+		 AXP15060_PWR_OUT_CTRL3, AXP15060_PWR_OUT_BLDO5_MASK),
+	AXP_DESC(AXP15060, CLDO1, "cldo1", "cldoin", 700, 3300, 100,
+		 AXP15060_CLDO1_V_CTRL, AXP15060_CLDO1_V_CTRL_MASK,
+		 AXP15060_PWR_OUT_CTRL3, AXP15060_PWR_OUT_CLDO1_MASK),
+	AXP_DESC(AXP15060, CLDO2, "cldo2", "cldoin", 700, 3300, 100,
+		 AXP15060_CLDO2_V_CTRL, AXP15060_CLDO2_V_CTRL_MASK,
+		 AXP15060_PWR_OUT_CTRL3, AXP15060_PWR_OUT_CLDO2_MASK),
+	AXP_DESC(AXP15060, CLDO3, "cldo3", "cldoin", 700, 3300, 100,
+		 AXP15060_CLDO3_V_CTRL, AXP15060_CLDO3_V_CTRL_MASK,
+		 AXP15060_PWR_OUT_CTRL3, AXP15060_PWR_OUT_CLDO3_MASK),
+	AXP_DESC(AXP15060, CLDO4, "cldo4", "cldoin", 700, 4200, 100,
+		 AXP15060_CLDO4_V_CTRL, AXP15060_CLDO4_V_CTRL_MASK,
+		 AXP15060_PWR_OUT_CTRL3, AXP15060_PWR_OUT_CLDO4_MASK),
+	/* Supply comes from DCDC5 */
+	AXP_DESC(AXP15060, CPUSLDO, "cpusldo", NULL, 700, 1400, 50,
+		 AXP15060_CPUSLDO_V_CTRL, AXP15060_CPUSLDO_V_CTRL_MASK,
+		 AXP15060_PWR_OUT_CTRL3, AXP15060_PWR_OUT_CPUSLDO_MASK),
+	/* Supply comes from DCDC1 */
+	AXP_DESC_SW(AXP15060, SW, "sw", NULL,
+		    AXP15060_PWR_OUT_CTRL3, AXP15060_PWR_OUT_SW_MASK),
+	/* Supply comes from ALDO1 */
+	AXP_DESC_FIXED(AXP15060, RTC_LDO, "rtc-ldo", NULL, 1800),
+};
+
 static int axp20x_set_dcdc_freq(struct platform_device *pdev, u32 dcdcfreq)
 {
 	struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent);
@@ -1040,6 +1253,16 @@ static int axp20x_set_dcdc_freq(struct p
 		def = 3000;
 		step = 150;
 		break;
+	case AXP313A_ID:
+	case AXP15060_ID:
+		/* The DCDC PWM frequency seems to be fixed to 3 MHz. */
+		if (dcdcfreq != 0) {
+			dev_err(&pdev->dev,
+				"DCDC frequency on this PMIC is fixed to 3 MHz.\n");
+			return -EINVAL;
+		}
+
+		return 0;
 	default:
 		dev_err(&pdev->dev,
 			"Setting DCDC frequency for unsupported AXP variant\n");
@@ -1145,6 +1368,15 @@ static int axp20x_set_dcdc_workmode(stru
 		workmode <<= id - AXP813_DCDC1;
 		break;
 
+	case AXP15060_ID:
+		reg = AXP15060_DCDC_MODE_CTRL2;
+		if (id < AXP15060_DCDC1 || id > AXP15060_DCDC6)
+			return -EINVAL;
+
+		mask = AXP22X_WORKMODE_DCDCX_MASK(id - AXP15060_DCDC1);
+		workmode <<= id - AXP15060_DCDC1;
+		break;
+
 	default:
 		/* should not happen */
 		WARN_ON(1);
@@ -1164,7 +1396,7 @@ static bool axp20x_is_polyphase_slave(st
 
 	/*
 	 * Currently in our supported AXP variants, only AXP803, AXP806,
-	 * and AXP813 have polyphase regulators.
+	 * AXP813 and AXP15060 have polyphase regulators.
 	 */
 	switch (axp20x->variant) {
 	case AXP803_ID:
@@ -1196,6 +1428,17 @@ static bool axp20x_is_polyphase_slave(st
 		}
 		break;
 
+	case AXP15060_ID:
+		regmap_read(axp20x->regmap, AXP15060_DCDC_MODE_CTRL1, &reg);
+
+		switch (id) {
+		case AXP15060_DCDC3:
+			return !!(reg & AXP15060_DCDC23_POLYPHASE_DUAL_MASK);
+		case AXP15060_DCDC6:
+			return !!(reg & AXP15060_DCDC46_POLYPHASE_DUAL_MASK);
+		}
+		break;
+
 	default:
 		return false;
 	}
@@ -1217,6 +1460,7 @@ static int axp20x_regulator_probe(struct
 	u32 workmode;
 	const char *dcdc1_name = axp22x_regulators[AXP22X_DCDC1].name;
 	const char *dcdc5_name = axp22x_regulators[AXP22X_DCDC5].name;
+	const char *aldo1_name = axp15060_regulators[AXP15060_ALDO1].name;
 	bool drivevbus = false;
 
 	switch (axp20x->variant) {
@@ -1232,6 +1476,10 @@ static int axp20x_regulator_probe(struct
 		drivevbus = of_property_read_bool(pdev->dev.parent->of_node,
 						  "x-powers,drive-vbus-en");
 		break;
+	case AXP313A_ID:
+		regulators = axp313a_regulators;
+		nregulators = AXP313A_REG_ID_MAX;
+		break;
 	case AXP803_ID:
 		regulators = axp803_regulators;
 		nregulators = AXP803_REG_ID_MAX;
@@ -1252,6 +1500,10 @@ static int axp20x_regulator_probe(struct
 		drivevbus = of_property_read_bool(pdev->dev.parent->of_node,
 						  "x-powers,drive-vbus-en");
 		break;
+	case AXP15060_ID:
+		regulators = axp15060_regulators;
+		nregulators = AXP15060_REG_ID_MAX;
+		break;
 	default:
 		dev_err(&pdev->dev, "Unsupported AXP variant: %ld\n",
 			axp20x->variant);
@@ -1278,8 +1530,9 @@ static int axp20x_regulator_probe(struct
 			continue;
 
 		/*
-		 * Regulators DC1SW and DC5LDO are connected internally,
-		 * so we have to handle their supply names separately.
+		 * Regulators DC1SW, DC5LDO and RTCLDO on AXP15060 are
+		 * connected internally, so we have to handle their supply
+		 * names separately.
 		 *
 		 * We always register the regulators in proper sequence,
 		 * so the supply names are correctly read. See the last
@@ -1288,7 +1541,8 @@ static int axp20x_regulator_probe(struct
 		 */
 		if ((regulators == axp22x_regulators && i == AXP22X_DC1SW) ||
 		    (regulators == axp803_regulators && i == AXP803_DC1SW) ||
-		    (regulators == axp809_regulators && i == AXP809_DC1SW)) {
+		    (regulators == axp809_regulators && i == AXP809_DC1SW) ||
+		    (regulators == axp15060_regulators && i == AXP15060_SW)) {
 			new_desc = devm_kzalloc(&pdev->dev, sizeof(*desc),
 						GFP_KERNEL);
 			if (!new_desc)
@@ -1300,7 +1554,8 @@ static int axp20x_regulator_probe(struct
 		}
 
 		if ((regulators == axp22x_regulators && i == AXP22X_DC5LDO) ||
-		    (regulators == axp809_regulators && i == AXP809_DC5LDO)) {
+		    (regulators == axp809_regulators && i == AXP809_DC5LDO) ||
+		    (regulators == axp15060_regulators && i == AXP15060_CPUSLDO)) {
 			new_desc = devm_kzalloc(&pdev->dev, sizeof(*desc),
 						GFP_KERNEL);
 			if (!new_desc)
@@ -1311,6 +1566,18 @@ static int axp20x_regulator_probe(struct
 			desc = new_desc;
 		}
 
+
+		if (regulators == axp15060_regulators && i == AXP15060_RTC_LDO) {
+			new_desc = devm_kzalloc(&pdev->dev, sizeof(*desc),
+						GFP_KERNEL);
+			if (!new_desc)
+				return -ENOMEM;
+
+			*new_desc = regulators[i];
+			new_desc->supply_name = aldo1_name;
+			desc = new_desc;
+		}
+
 		rdev = devm_regulator_register(&pdev->dev, desc, &config);
 		if (IS_ERR(rdev)) {
 			dev_err(&pdev->dev, "Failed to register %s\n",
@@ -1329,19 +1596,26 @@ static int axp20x_regulator_probe(struct
 		}
 
 		/*
-		 * Save AXP22X DCDC1 / DCDC5 regulator names for later.
+		 * Save AXP22X DCDC1 / DCDC5 / AXP15060 ALDO1 regulator names for later.
 		 */
 		if ((regulators == axp22x_regulators && i == AXP22X_DCDC1) ||
-		    (regulators == axp809_regulators && i == AXP809_DCDC1))
+		    (regulators == axp809_regulators && i == AXP809_DCDC1) ||
+		    (regulators == axp15060_regulators && i == AXP15060_DCDC1))
 			of_property_read_string(rdev->dev.of_node,
 						"regulator-name",
 						&dcdc1_name);
 
 		if ((regulators == axp22x_regulators && i == AXP22X_DCDC5) ||
-		    (regulators == axp809_regulators && i == AXP809_DCDC5))
+		    (regulators == axp809_regulators && i == AXP809_DCDC5) ||
+		    (regulators == axp15060_regulators && i == AXP15060_DCDC5))
 			of_property_read_string(rdev->dev.of_node,
 						"regulator-name",
 						&dcdc5_name);
+
+		if (regulators == axp15060_regulators && i == AXP15060_ALDO1)
+			of_property_read_string(rdev->dev.of_node,
+						"regulator-name",
+						&aldo1_name);
 	}
 
 	if (drivevbus) {
@@ -1364,6 +1638,7 @@ static struct platform_driver axp20x_reg
 	.probe	= axp20x_regulator_probe,
 	.driver	= {
 		.name		= "axp20x-regulator",
+		.probe_type	= PROBE_PREFER_ASYNCHRONOUS,
 	},
 };