diff mbox series

[3/3] regulator: axp20x: add support for the AXP318W

Message ID 20251021112013.2710903-4-andre.przywara@arm.com (mailing list archive)
State New
Headers
Series regulator: Add X-Powers AXP318W PMIC support |

Commit Message

Andre Przywara Oct. 21, 2025, 11:20 a.m. UTC 
The X-Powers AXP318W is a typical PMIC from X-Powers, featuring nine
DC/DC converters and 28 LDOs, on the regulator side.

Describe the chip's voltage settings and switch registers, how the
voltages are encoded, and connect this to the MFD device via its
regulator ID.
We use just "318" for the internal identifiers, for easier typing and
less churn. If something else other than the "AXP318W" shows up, that's
an easy change, externally visible strings carry the additional letter
already.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
---
 drivers/regulator/axp20x-regulator.c | 170 ++++++++++++++++++++++++++-
 include/linux/mfd/axp20x.h           |  43 +++++++
 2 files changed, 211 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/regulator/axp20x-regulator.c b/drivers/regulator/axp20x-regulator.c
index da891415efc0b..1576bf4178f8f 100644
--- a/drivers/regulator/axp20x-regulator.c
+++ b/drivers/regulator/axp20x-regulator.c
@@ -138,6 +138,15 @@ 
 #define AXP313A_DCDC_V_OUT_MASK		GENMASK(6, 0)
 #define AXP313A_LDO_V_OUT_MASK		GENMASK(4, 0)
 
+#define AXP318_DCDC1_V_OUT_MASK		GENMASK(4, 0)
+#define AXP318_DCDC2_V_OUT_MASK		GENMASK(6, 0)
+#define AXP318_LDO_V_OUT_MASK		GENMASK(4, 0)
+#define AXP318_ELDO_V_OUT_MASK		GENMASK(5, 0)
+#define AXP318_DCDC2_NUM_VOLTAGES	88
+#define AXP318_DCDC6_NUM_VOLTAGES	128
+#define AXP318_DCDC7_NUM_VOLTAGES	103
+#define AXP318_DCDC8_NUM_VOLTAGES	119
+
 #define AXP717_DCDC1_NUM_VOLTAGES	88
 #define AXP717_DCDC2_NUM_VOLTAGES	107
 #define AXP717_DCDC3_NUM_VOLTAGES	103
@@ -765,6 +774,155 @@  static const struct regulator_desc axp313a_regulators[] = {
 	AXP_DESC_FIXED(AXP313A, RTC_LDO, "rtc-ldo", "vin1", 1800),
 };
 
+static const struct linear_range axp318_dcdc2_ranges[] = {
+	REGULATOR_LINEAR_RANGE(500000,   0, 70, 10000),
+	REGULATOR_LINEAR_RANGE(1220000, 71, 87, 20000),
+};
+
+static const struct linear_range axp318_dcdc6_ranges[] = {
+	REGULATOR_LINEAR_RANGE(500000,    0,  70,  10000),
+	REGULATOR_LINEAR_RANGE(1220000,  71,  87,  20000),
+	REGULATOR_LINEAR_RANGE(1800000,  88, 118,  20000),
+	REGULATOR_LINEAR_RANGE(2440000, 119, 127,  40000),
+};
+
+static const struct linear_range axp318_dcdc7_ranges[] = {
+	REGULATOR_LINEAR_RANGE(500000,   0,  70, 10000),
+	REGULATOR_LINEAR_RANGE(1220000, 71, 102, 20000),
+};
+
+static const struct linear_range axp318_dcdc8_ranges[] = {
+	REGULATOR_LINEAR_RANGE(500000,    0,  70,  10000),
+	REGULATOR_LINEAR_RANGE(1220000,  71, 102,  20000),
+	REGULATOR_LINEAR_RANGE(1900000, 103, 118, 100000),
+};
+
+static const struct regulator_desc axp318_regulators[] = {
+	AXP_DESC(AXP318, DCDC1, "dcdc1", "vin19", 1000, 3400, 100,
+		 AXP318_DCDC1_CONTROL, AXP318_DCDC1_V_OUT_MASK,
+		 AXP318_DCDC_OUTPUT_CONTROL1, BIT(0)),
+	AXP_DESC_RANGES(AXP318, DCDC2, "dcdc2", "vin23",
+			axp318_dcdc2_ranges, AXP318_DCDC2_NUM_VOLTAGES,
+			AXP318_DCDC2_CONTROL, AXP318_DCDC2_V_OUT_MASK,
+			AXP318_DCDC_OUTPUT_CONTROL1, BIT(1)),
+	AXP_DESC_RANGES(AXP318, DCDC3, "dcdc3", "vin23",
+			axp318_dcdc2_ranges, AXP318_DCDC2_NUM_VOLTAGES,
+			AXP318_DCDC3_CONTROL, AXP318_DCDC2_V_OUT_MASK,
+			AXP318_DCDC_OUTPUT_CONTROL1, BIT(2)),
+	AXP_DESC_RANGES(AXP318, DCDC4, "dcdc4", "vin45",
+			axp318_dcdc2_ranges, AXP318_DCDC2_NUM_VOLTAGES,
+			AXP318_DCDC4_CONTROL, AXP318_DCDC2_V_OUT_MASK,
+			AXP318_DCDC_OUTPUT_CONTROL1, BIT(3)),
+	AXP_DESC_RANGES(AXP318, DCDC5, "dcdc5", "vin45",
+			axp318_dcdc2_ranges, AXP318_DCDC2_NUM_VOLTAGES,
+			AXP318_DCDC5_CONTROL, AXP318_DCDC2_V_OUT_MASK,
+			AXP318_DCDC_OUTPUT_CONTROL1, BIT(4)),
+	AXP_DESC_RANGES(AXP318, DCDC6, "dcdc6", "vin678",
+			axp318_dcdc6_ranges, AXP318_DCDC6_NUM_VOLTAGES,
+			AXP318_DCDC6_CONTROL, AXP318_DCDC2_V_OUT_MASK,
+			AXP318_DCDC_OUTPUT_CONTROL1, BIT(5)),
+	AXP_DESC_RANGES(AXP318, DCDC7, "dcdc7", "vin678",
+			axp318_dcdc7_ranges, AXP318_DCDC7_NUM_VOLTAGES,
+			AXP318_DCDC7_CONTROL, AXP318_DCDC2_V_OUT_MASK,
+			AXP318_DCDC_OUTPUT_CONTROL1, BIT(6)),
+	AXP_DESC_RANGES(AXP318, DCDC8, "dcdc8", "vin678",
+			axp318_dcdc8_ranges, AXP318_DCDC8_NUM_VOLTAGES,
+			AXP318_DCDC8_CONTROL, AXP318_DCDC2_V_OUT_MASK,
+			AXP318_DCDC_OUTPUT_CONTROL1, BIT(7)),
+	AXP_DESC_RANGES(AXP318, DCDC9, "dcdc9", "vin19",
+			axp318_dcdc8_ranges, AXP318_DCDC8_NUM_VOLTAGES,
+			AXP318_DCDC9_CONTROL, AXP318_DCDC2_V_OUT_MASK,
+			AXP318_DCDC_OUTPUT_CONTROL2, BIT(0)),
+	AXP_DESC_SW(AXP318, SWOUT1, "swout1", NULL,
+		    AXP318_DCDC_OUTPUT_CONTROL2, BIT(3)),
+	AXP_DESC_SW(AXP318, SWOUT2, "swout2", NULL,
+		    AXP318_DCDC_OUTPUT_CONTROL2, BIT(4)),
+	AXP_DESC(AXP318, ALDO1, "aldo1", "aldo156in", 500, 3400, 100,
+		 AXP318_ALDO1_CONTROL, AXP318_LDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL1, BIT(0)),
+	AXP_DESC(AXP318, ALDO2, "aldo2", "aldo234in", 500, 3400, 100,
+		 AXP318_ALDO2_CONTROL, AXP318_LDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL1, BIT(1)),
+	AXP_DESC(AXP318, ALDO3, "aldo3", "aldo234in", 500, 3400, 100,
+		 AXP318_ALDO3_CONTROL, AXP318_LDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL1, BIT(2)),
+	AXP_DESC(AXP318, ALDO4, "aldo4", "aldo234in", 500, 3400, 100,
+		 AXP318_ALDO4_CONTROL, AXP318_LDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL1, BIT(3)),
+	AXP_DESC(AXP318, ALDO5, "aldo5", "aldo156in", 500, 3400, 100,
+		 AXP318_ALDO5_CONTROL, AXP318_LDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL1, BIT(4)),
+	AXP_DESC(AXP318, ALDO6, "aldo6", "aldo156in", 500, 3400, 100,
+		 AXP318_ALDO6_CONTROL, AXP318_LDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL1, BIT(5)),
+	AXP_DESC(AXP318, BLDO1, "bldo1", "bldoin", 500, 3400, 100,
+		 AXP318_BLDO1_CONTROL, AXP318_LDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL1, BIT(6)),
+	AXP_DESC(AXP318, BLDO2, "bldo2", "bldoin", 500, 3400, 100,
+		 AXP318_BLDO2_CONTROL, AXP318_LDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL1, BIT(7)),
+	AXP_DESC(AXP318, BLDO3, "bldo3", "bldoin", 500, 3400, 100,
+		 AXP318_BLDO3_CONTROL, AXP318_LDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL2, BIT(0)),
+	AXP_DESC(AXP318, BLDO4, "bldo4", "bldoin", 500, 3400, 100,
+		 AXP318_BLDO4_CONTROL, AXP318_LDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL2, BIT(1)),
+	AXP_DESC(AXP318, BLDO5, "bldo5", "bldoin", 500, 3400, 100,
+		 AXP318_BLDO5_CONTROL, AXP318_LDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL2, BIT(2)),
+	AXP_DESC(AXP318, CLDO1, "cldo1", "cldoin", 500, 3400, 100,
+		 AXP318_CLDO1_CONTROL, AXP318_LDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL2, BIT(3)),
+	AXP_DESC(AXP318, CLDO2, "cldo2", "cldoin", 500, 3400, 100,
+		 AXP318_CLDO2_CONTROL, AXP318_LDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL2, BIT(4)),
+	AXP_DESC(AXP318, CLDO3, "cldo3", "cldoin", 500, 3400, 100,
+		 AXP318_CLDO3_CONTROL, AXP318_LDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL2, BIT(5)),
+	AXP_DESC(AXP318, CLDO4, "cldo4", "cldoin", 500, 3400, 100,
+		 AXP318_CLDO4_CONTROL, AXP318_LDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL2, BIT(6)),
+	AXP_DESC(AXP318, CLDO5, "cldo5", "cldoin", 500, 3400, 100,
+		 AXP318_CLDO5_CONTROL, AXP318_LDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL2, BIT(7)),
+	AXP_DESC(AXP318, DLDO1, "dldo1", "dldoin", 500, 3400, 100,
+		 AXP318_DLDO1_CONTROL, AXP318_LDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL3, BIT(0)),
+	AXP_DESC(AXP318, DLDO2, "dldo2", "dldoin", 500, 3400, 100,
+		 AXP318_DLDO2_CONTROL, AXP318_LDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL3, BIT(1)),
+	AXP_DESC(AXP318, DLDO3, "dldo3", "dldoin", 500, 3400, 100,
+		 AXP318_DLDO3_CONTROL, AXP318_LDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL3, BIT(2)),
+	AXP_DESC(AXP318, DLDO4, "dldo4", "dldoin", 500, 3400, 100,
+		 AXP318_DLDO4_CONTROL, AXP318_LDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL3, BIT(3)),
+	AXP_DESC(AXP318, DLDO5, "dldo5", "dldoin", 500, 3400, 100,
+		 AXP318_DLDO5_CONTROL, AXP318_LDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL3, BIT(4)),
+	AXP_DESC(AXP318, DLDO6, "dldo6", "dldoin", 500, 3400, 100,
+		 AXP318_DLDO6_CONTROL, AXP318_LDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL3, BIT(5)),
+	AXP_DESC(AXP318, ELDO1, "eldo1", "eldoin", 500, 1500, 25,
+		 AXP318_ELDO1_CONTROL, AXP318_ELDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL3, BIT(6)),
+	AXP_DESC(AXP318, ELDO2, "eldo2", "eldoin", 500, 1500, 25,
+		 AXP318_ELDO2_CONTROL, AXP318_ELDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL3, BIT(7)),
+	AXP_DESC(AXP318, ELDO3, "eldo3", "eldoin", 500, 1500, 25,
+		 AXP318_ELDO3_CONTROL, AXP318_ELDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL4, BIT(0)),
+	AXP_DESC(AXP318, ELDO4, "eldo4", "eldoin", 500, 1500, 25,
+		 AXP318_ELDO4_CONTROL, AXP318_ELDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL4, BIT(1)),
+	AXP_DESC(AXP318, ELDO5, "eldo5", "eldoin", 500, 1500, 25,
+		 AXP318_ELDO5_CONTROL, AXP318_ELDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL4, BIT(2)),
+	AXP_DESC(AXP318, ELDO6, "eldo6", "eldoin", 500, 1500, 25,
+		 AXP318_ELDO6_CONTROL, AXP318_ELDO_V_OUT_MASK,
+		 AXP318_LDO_OUTPUT_CONTROL4, BIT(3)),
+};
+
 static const struct linear_range axp717_dcdc1_ranges[] = {
 	REGULATOR_LINEAR_RANGE(500000,   0, 70, 10000),
 	REGULATOR_LINEAR_RANGE(1220000, 71, 87, 20000),
@@ -1347,6 +1505,7 @@  static int axp20x_set_dcdc_freq(struct platform_device *pdev, u32 dcdcfreq)
 		step = 150;
 		break;
 	case AXP313A_ID:
+	case AXP318_ID:
 	case AXP323_ID:
 	case AXP717_ID:
 	case AXP15060_ID:
@@ -1585,6 +1744,10 @@  static int axp20x_regulator_probe(struct platform_device *pdev)
 		regulators = axp313a_regulators;
 		nregulators = AXP313A_REG_ID_MAX;
 		break;
+	case AXP318_ID:
+		regulators = axp318_regulators;
+		nregulators = AXP318_REG_ID_MAX;
+		break;
 	case AXP717_ID:
 		regulators = axp717_regulators;
 		nregulators = AXP717_REG_ID_MAX;
@@ -1651,7 +1814,9 @@  static int axp20x_regulator_probe(struct platform_device *pdev)
 		if ((regulators == axp22x_regulators && i == AXP22X_DC1SW) ||
 		    (regulators == axp803_regulators && i == AXP803_DC1SW) ||
 		    (regulators == axp809_regulators && i == AXP809_DC1SW) ||
-		    (regulators == axp15060_regulators && i == AXP15060_SW)) {
+		    (regulators == axp15060_regulators && i == AXP15060_SW) ||
+		    (regulators == axp318_regulators && i == AXP318_SWOUT1) ||
+		    (regulators == axp318_regulators && i == AXP318_SWOUT2)) {
 			new_desc = devm_kzalloc(&pdev->dev, sizeof(*desc),
 						GFP_KERNEL);
 			if (!new_desc)
@@ -1709,7 +1874,8 @@  static int axp20x_regulator_probe(struct platform_device *pdev)
 		 */
 		if ((regulators == axp22x_regulators && i == AXP22X_DCDC1) ||
 		    (regulators == axp809_regulators && i == AXP809_DCDC1) ||
-		    (regulators == axp15060_regulators && i == AXP15060_DCDC1))
+		    (regulators == axp15060_regulators && i == AXP15060_DCDC1) ||
+		    (regulators == axp318_regulators && i == AXP318_DCDC1))
 			of_property_read_string(rdev->dev.of_node,
 						"regulator-name",
 						&dcdc1_name);
diff --git a/include/linux/mfd/axp20x.h b/include/linux/mfd/axp20x.h
index a871789f6cfa9..9957185458d63 100644
--- a/include/linux/mfd/axp20x.h
+++ b/include/linux/mfd/axp20x.h
@@ -559,6 +559,49 @@  enum {
 	AXP313A_REG_ID_MAX,
 };
 
+enum {
+	AXP318_DCDC1 = 0,
+	AXP318_DCDC2,
+	AXP318_DCDC3,
+	AXP318_DCDC4,
+	AXP318_DCDC5,
+	AXP318_DCDC6,
+	AXP318_DCDC7,
+	AXP318_DCDC8,
+	AXP318_DCDC9,
+	AXP318_ALDO1,
+	AXP318_ALDO2,
+	AXP318_ALDO3,
+	AXP318_ALDO4,
+	AXP318_ALDO5,
+	AXP318_ALDO6,
+	AXP318_BLDO1,
+	AXP318_BLDO2,
+	AXP318_BLDO3,
+	AXP318_BLDO4,
+	AXP318_BLDO5,
+	AXP318_CLDO1,
+	AXP318_CLDO2,
+	AXP318_CLDO3,
+	AXP318_CLDO4,
+	AXP318_CLDO5,
+	AXP318_DLDO1,
+	AXP318_DLDO2,
+	AXP318_DLDO3,
+	AXP318_DLDO4,
+	AXP318_DLDO5,
+	AXP318_DLDO6,
+	AXP318_ELDO1,
+	AXP318_ELDO2,
+	AXP318_ELDO3,
+	AXP318_ELDO4,
+	AXP318_ELDO5,
+	AXP318_ELDO6,
+	AXP318_SWOUT1,
+	AXP318_SWOUT2,
+	AXP318_REG_ID_MAX,
+};
+
 enum {
 	AXP717_DCDC1 = 0,
 	AXP717_DCDC2,