[PATCH v2 3/6] regulator: Add regulator driver for ATC260x PMICs

From: Cristian Ciocaltea
Date: Fri Aug 21 2020 - 18:20:17 EST

This driver supports the DC-DC converters and LDO regulators found in
the ATC2603C and ATC2609A chip variants of the Actions Semi ATC260x
family of PMICs.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
[cristian: add ATC2603C variant, more regulator capabilities, cleanups]
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@xxxxxxxxx>
---
drivers/regulator/Kconfig | 8 +
drivers/regulator/Makefile | 1 +
drivers/regulator/atc260x-regulator.c | 511 ++++++++++++++++++++++++++
3 files changed, 520 insertions(+)
create mode 100644 drivers/regulator/atc260x-regulator.c

diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index de17ef7e18f0..860e46798503 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -170,6 +170,14 @@ config REGULATOR_AS3722
AS3722 PMIC. This will enable support for all the software
controllable DCDC/LDO regulators.

+config REGULATOR_ATC260X
+ tristate "Actions Semi ATC260x PMIC Regulators"
+ depends on MFD_ATC260X
+ help
+ This driver provides support for the voltage regulators on the
+ ATC260x PMICs. This will enable support for all the software
+ controllable DCDC/LDO regulators.
+
config REGULATOR_AXP20X
tristate "X-POWERS AXP20X PMIC Regulators"
depends on MFD_AXP20X
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index d8d3ecf526a8..181ff77ee23c 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -26,6 +26,7 @@ obj-$(CONFIG_REGULATOR_ARIZONA_LDO1) += arizona-ldo1.o
obj-$(CONFIG_REGULATOR_ARIZONA_MICSUPP) += arizona-micsupp.o
obj-$(CONFIG_REGULATOR_AS3711) += as3711-regulator.o
obj-$(CONFIG_REGULATOR_AS3722) += as3722-regulator.o
+obj-$(CONFIG_REGULATOR_ATC260X) += atc260x-regulator.o
obj-$(CONFIG_REGULATOR_AXP20X) += axp20x-regulator.o
obj-$(CONFIG_REGULATOR_BCM590XX) += bcm590xx-regulator.o
obj-$(CONFIG_REGULATOR_BD70528) += bd70528-regulator.o
diff --git a/drivers/regulator/atc260x-regulator.c b/drivers/regulator/atc260x-regulator.c
new file mode 100644
index 000000000000..7fab56cb80df
--- /dev/null
+++ b/drivers/regulator/atc260x-regulator.c
@@ -0,0 +1,511 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// Regulator driver for ATC260x PMICs
+//
+// Copyright (C) 2019 Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
+// Copyright (C) 2020 Cristian Ciocaltea <cristian.ciocaltea@xxxxxxxxx>
+
+#include <linux/mfd/atc260x/core.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/regmap.h>
+#include <linux/regulator/driver.h>
+
+struct atc260x_regulator_data {
+ int last_dcdc_reg_id;
+ int voltage_time_dcdc;
+ int voltage_time_ldo;
+};
+
+static const struct linear_range atc2603c_dcdc_voltage_ranges[] = {
+ REGULATOR_LINEAR_RANGE(1300000, 0, 13, 50000),
+ REGULATOR_LINEAR_RANGE(1950000, 14, 15, 100000),
+};
+
+static const struct linear_range atc2609a_dcdc_voltage_ranges[] = {
+ REGULATOR_LINEAR_RANGE(600000, 0, 127, 6250),
+ REGULATOR_LINEAR_RANGE(1400000, 128, 232, 25000),
+};
+
+static const struct linear_range atc2609a_ldo_voltage_ranges0[] = {
+ REGULATOR_LINEAR_RANGE(700000, 0, 15, 100000),
+ REGULATOR_LINEAR_RANGE(2100000, 16, 28, 100000),
+};
+
+static const struct linear_range atc2609a_ldo_voltage_ranges1[] = {
+ REGULATOR_LINEAR_RANGE(850000, 0, 15, 100000),
+ REGULATOR_LINEAR_RANGE(2100000, 16, 27, 100000),
+};
+
+static const unsigned int atc260x_ldo_voltage_range_sel[] = {
+ 0x0, 0x1,
+};
+
+static int atc260x_set_voltage_time_sel(struct regulator_dev *rdev,
+ unsigned int old_selector,
+ unsigned int new_selector)
+{
+ struct atc260x_regulator_data *data = rdev_get_drvdata(rdev);
+ int id = rdev_get_id(rdev);
+
+ if (new_selector > old_selector)
+ return id > data->last_dcdc_reg_id ? data->voltage_time_ldo
+ : data->voltage_time_dcdc;
+
+ return 0;
+}
+
+static const struct regulator_ops atc260x_reg_ops = {
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+ .list_voltage = regulator_list_voltage_linear,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_time_sel = atc260x_set_voltage_time_sel,
+};
+
+static const struct regulator_ops atc260x_reg_bypass_ops = {
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+ .list_voltage = regulator_list_voltage_linear,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_time_sel = atc260x_set_voltage_time_sel,
+ .set_bypass = regulator_set_bypass_regmap,
+ .get_bypass = regulator_get_bypass_regmap,
+};
+
+static const struct regulator_ops atc260x_reg_bypass_discharge_ops = {
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+ .list_voltage = regulator_list_voltage_linear,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_time_sel = atc260x_set_voltage_time_sel,
+ .set_bypass = regulator_set_bypass_regmap,
+ .get_bypass = regulator_get_bypass_regmap,
+ .set_active_discharge = regulator_set_active_discharge_regmap,
+};
+
+static const struct regulator_ops atc260x_reg_range_ops = {
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+ .list_voltage = regulator_list_voltage_linear_range,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_time_sel = atc260x_set_voltage_time_sel,
+};
+
+static const struct regulator_ops atc260x_reg_range_pick_ops = {
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+ .list_voltage = regulator_list_voltage_pickable_linear_range,
+ .set_voltage_sel = regulator_set_voltage_sel_pickable_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_pickable_regmap,
+ .set_voltage_time_sel = atc260x_set_voltage_time_sel,
+};
+
+static const struct regulator_ops atc260x_reg_fixed_ops = {
+ .list_voltage = regulator_list_voltage_linear,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_time_sel = atc260x_set_voltage_time_sel,
+};
+
+/*
+ * ATC2603C notes:
+ * - LDO8 is not documented in datasheet (v2.4), but supported
+ * in the vendor's driver implementation (xapp-le-kernel).
+ * - LDO12 mentioned in datasheet is not programmable, hence not
+ * handled in this driver.
+ */
+enum atc2603c_reg_ids {
+ ATC2603C_ID_DCDC1,
+ ATC2603C_ID_DCDC2,
+ ATC2603C_ID_DCDC3,
+ ATC2603C_ID_LDO1,
+ ATC2603C_ID_LDO2,
+ ATC2603C_ID_LDO3,
+ ATC2603C_ID_LDO5,
+ ATC2603C_ID_LDO6,
+ ATC2603C_ID_LDO7,
+ ATC2603C_ID_LDO8,
+ ATC2603C_ID_LDO11,
+ ATC2603C_ID_SWITCHLDO1,
+ ATC2603C_ID_MAX,
+};
+
+#define atc2603c_reg_desc_dcdc(num, min, step, n_volt, vsel_h, vsel_l) { \
+ .name = "DCDC"#num, \
+ .supply_name = "dcdc"#num, \
+ .of_match = of_match_ptr("dcdc"#num), \
+ .regulators_node = of_match_ptr("regulators"), \
+ .id = ATC2603C_ID_DCDC##num, \
+ .ops = &atc260x_reg_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .min_uV = min, \
+ .uV_step = step, \
+ .n_voltages = n_volt, \
+ .vsel_reg = ATC2603C_PMU_DC##num##_CTL0, \
+ .vsel_mask = GENMASK(vsel_h, vsel_l), \
+ .enable_reg = ATC2603C_PMU_DC##num##_CTL0, \
+ .enable_mask = BIT(15), \
+ .enable_time = 800, \
+ .owner = THIS_MODULE, \
+}
+
+#define atc2603c_reg_desc_dcdc_range(num, vsel_h, vsel_l) { \
+ .name = "DCDC"#num, \
+ .supply_name = "dcdc"#num, \
+ .of_match = of_match_ptr("dcdc"#num), \
+ .regulators_node = of_match_ptr("regulators"), \
+ .id = ATC2603C_ID_DCDC##num, \
+ .ops = &atc260x_reg_range_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .n_voltages = 16, \
+ .linear_ranges = atc2603c_dcdc_voltage_ranges, \
+ .n_linear_ranges = ARRAY_SIZE(atc2603c_dcdc_voltage_ranges), \
+ .vsel_reg = ATC2603C_PMU_DC##num##_CTL0, \
+ .vsel_mask = GENMASK(vsel_h, vsel_l), \
+ .enable_reg = ATC2603C_PMU_DC##num##_CTL0, \
+ .enable_mask = BIT(15), \
+ .enable_time = 800, \
+ .owner = THIS_MODULE, \
+}
+
+#define atc2603c_reg_desc_dcdc_fixed(num, min, step, n_volt, vsel_h, vsel_l) { \
+ .name = "DCDC"#num, \
+ .supply_name = "dcdc"#num, \
+ .of_match = of_match_ptr("dcdc"#num), \
+ .regulators_node = of_match_ptr("regulators"), \
+ .id = ATC2603C_ID_DCDC##num, \
+ .ops = &atc260x_reg_fixed_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .min_uV = min, \
+ .uV_step = step, \
+ .n_voltages = n_volt, \
+ .vsel_reg = ATC2603C_PMU_DC##num##_CTL0, \
+ .vsel_mask = GENMASK(vsel_h, vsel_l), \
+ .enable_time = 800, \
+ .owner = THIS_MODULE, \
+}
+
+#define atc2603c_reg_desc_ldo(num, min, step, n_volt, vsel_h, vsel_l) { \
+ .name = "LDO"#num, \
+ .supply_name = "ldo"#num, \
+ .of_match = of_match_ptr("ldo"#num), \
+ .regulators_node = of_match_ptr("regulators"), \
+ .id = ATC2603C_ID_LDO##num, \
+ .ops = &atc260x_reg_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .min_uV = min, \
+ .uV_step = step, \
+ .n_voltages = n_volt, \
+ .vsel_reg = ATC2603C_PMU_LDO##num##_CTL, \
+ .vsel_mask = GENMASK(vsel_h, vsel_l), \
+ .enable_reg = ATC2603C_PMU_LDO##num##_CTL, \
+ .enable_mask = BIT(0), \
+ .enable_time = 2000, \
+ .owner = THIS_MODULE, \
+}
+
+#define atc2603c_reg_desc_ldo_fixed(num, min, step, n_volt, vsel_h, vsel_l) { \
+ .name = "LDO"#num, \
+ .supply_name = "ldo"#num, \
+ .of_match = of_match_ptr("ldo"#num), \
+ .regulators_node = of_match_ptr("regulators"), \
+ .id = ATC2603C_ID_LDO##num, \
+ .ops = &atc260x_reg_fixed_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .min_uV = min, \
+ .uV_step = step, \
+ .n_voltages = n_volt, \
+ .vsel_reg = ATC2603C_PMU_LDO##num##_CTL, \
+ .vsel_mask = GENMASK(vsel_h, vsel_l), \
+ .enable_time = 2000, \
+ .owner = THIS_MODULE, \
+}
+
+#define atc2603c_reg_desc_ldo_switch(num, min, step, n_volt, vsel_h, vsel_l) { \
+ .name = "SWITCHLDO"#num, \
+ .supply_name = "switchldo"#num, \
+ .of_match = of_match_ptr("switchldo"#num), \
+ .regulators_node = of_match_ptr("regulators"), \
+ .id = ATC2603C_ID_SWITCHLDO##num, \
+ .ops = &atc260x_reg_bypass_discharge_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .min_uV = min, \
+ .uV_step = step, \
+ .n_voltages = n_volt, \
+ .vsel_reg = ATC2603C_PMU_SWITCH_CTL, \
+ .vsel_mask = GENMASK(vsel_h, vsel_l), \
+ .enable_reg = ATC2603C_PMU_SWITCH_CTL, \
+ .enable_mask = BIT(15), \
+ .enable_is_inverted = true, \
+ .enable_time = 2000, \
+ .bypass_reg = ATC2603C_PMU_SWITCH_CTL, \
+ .bypass_mask = BIT(5), \
+ .active_discharge_reg = ATC2603C_PMU_SWITCH_CTL, \
+ .active_discharge_mask = BIT(1), \
+ .owner = THIS_MODULE, \
+}
+
+static const struct regulator_desc atc2603c_reg[] = {
+ atc2603c_reg_desc_dcdc_fixed(1, 700000, 25000, 29, 11, 7),
+ atc2603c_reg_desc_dcdc_range(2, 12, 8),
+ atc2603c_reg_desc_dcdc_fixed(3, 2600000, 100000, 8, 11, 9),
+ atc2603c_reg_desc_ldo_fixed(1, 2600000, 100000, 8, 15, 13),
+ atc2603c_reg_desc_ldo_fixed(2, 2600000, 100000, 8, 15, 13),
+ atc2603c_reg_desc_ldo_fixed(3, 1500000, 100000, 6, 15, 13),
+ atc2603c_reg_desc_ldo(5, 2600000, 100000, 8, 15, 13),
+ atc2603c_reg_desc_ldo_fixed(6, 700000, 25000, 29, 15, 11),
+ atc2603c_reg_desc_ldo(7, 1500000, 100000, 6, 15, 13),
+ atc2603c_reg_desc_ldo(8, 2300000, 100000, 11, 15, 12),
+ atc2603c_reg_desc_ldo_fixed(11, 2600000, 100000, 8, 15, 13),
+ atc2603c_reg_desc_ldo_switch(1, 3000000, 100000, 4, 4, 3),
+};
+
+static const struct regulator_desc atc2603c_reg_dcdc2_ver_b =
+ atc2603c_reg_desc_dcdc(2, 1000000, 50000, 18, 12, 8);
+
+enum atc2609a_reg_ids {
+ ATC2609A_ID_DCDC0,
+ ATC2609A_ID_DCDC1,
+ ATC2609A_ID_DCDC2,
+ ATC2609A_ID_DCDC3,
+ ATC2609A_ID_DCDC4,
+ ATC2609A_ID_LDO0,
+ ATC2609A_ID_LDO1,
+ ATC2609A_ID_LDO2,
+ ATC2609A_ID_LDO3,
+ ATC2609A_ID_LDO4,
+ ATC2609A_ID_LDO5,
+ ATC2609A_ID_LDO6,
+ ATC2609A_ID_LDO7,
+ ATC2609A_ID_LDO8,
+ ATC2609A_ID_LDO9,
+ ATC2609A_ID_MAX,
+};
+
+#define atc2609a_reg_desc_dcdc(num, en_bit) { \
+ .name = "DCDC"#num, \
+ .supply_name = "dcdc"#num, \
+ .of_match = of_match_ptr("dcdc"#num), \
+ .regulators_node = of_match_ptr("regulators"), \
+ .id = ATC2609A_ID_DCDC##num, \
+ .ops = &atc260x_reg_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .min_uV = 600000, \
+ .uV_step = 6250, \
+ .n_voltages = 256, \
+ .vsel_reg = ATC2609A_PMU_DC##num##_CTL0, \
+ .vsel_mask = GENMASK(15, 8), \
+ .enable_reg = ATC2609A_PMU_DC_OSC, \
+ .enable_mask = BIT(en_bit), \
+ .enable_time = 800, \
+ .owner = THIS_MODULE, \
+}
+
+#define atc2609a_reg_desc_dcdc_range(num, en_bit) { \
+ .name = "DCDC"#num, \
+ .supply_name = "dcdc"#num, \
+ .of_match = of_match_ptr("dcdc"#num), \
+ .regulators_node = of_match_ptr("regulators"), \
+ .id = ATC2609A_ID_DCDC##num, \
+ .ops = &atc260x_reg_range_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .n_voltages = 233, \
+ .linear_ranges = atc2609a_dcdc_voltage_ranges, \
+ .n_linear_ranges = ARRAY_SIZE(atc2609a_dcdc_voltage_ranges), \
+ .vsel_reg = ATC2609A_PMU_DC##num##_CTL0, \
+ .vsel_mask = GENMASK(15, 8), \
+ .enable_reg = ATC2609A_PMU_DC_OSC, \
+ .enable_mask = BIT(en_bit), \
+ .enable_time = 800, \
+ .owner = THIS_MODULE, \
+}
+
+#define atc2609a_reg_desc_ldo(num) { \
+ .name = "LDO"#num, \
+ .supply_name = "ldo"#num, \
+ .of_match = of_match_ptr("ldo"#num), \
+ .regulators_node = of_match_ptr("regulators"), \
+ .id = ATC2609A_ID_LDO##num, \
+ .ops = &atc260x_reg_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .min_uV = 700000, \
+ .uV_step = 100000, \
+ .n_voltages = 16, \
+ .vsel_reg = ATC2609A_PMU_LDO##num##_CTL0, \
+ .vsel_mask = GENMASK(4, 1), \
+ .enable_reg = ATC2609A_PMU_LDO##num##_CTL0, \
+ .enable_mask = BIT(0), \
+ .enable_time = 2000, \
+ .owner = THIS_MODULE, \
+}
+
+#define atc2609a_reg_desc_ldo_bypass(num) { \
+ .name = "LDO"#num, \
+ .supply_name = "ldo"#num, \
+ .of_match = of_match_ptr("ldo"#num), \
+ .regulators_node = of_match_ptr("regulators"), \
+ .id = ATC2609A_ID_LDO##num, \
+ .ops = &atc260x_reg_bypass_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .min_uV = 2300000, \
+ .uV_step = 100000, \
+ .n_voltages = 12, \
+ .vsel_reg = ATC2609A_PMU_LDO##num##_CTL0, \
+ .vsel_mask = GENMASK(5, 2), \
+ .enable_reg = ATC2609A_PMU_LDO##num##_CTL0, \
+ .enable_mask = BIT(0), \
+ .enable_time = 2000, \
+ .bypass_reg = ATC2609A_PMU_LDO##num##_CTL0, \
+ .bypass_mask = BIT(1), \
+ .owner = THIS_MODULE, \
+}
+
+#define atc2609a_reg_desc_ldo_range_pick(num, n_range) { \
+ .name = "LDO"#num, \
+ .supply_name = "ldo"#num, \
+ .of_match = of_match_ptr("ldo"#num), \
+ .regulators_node = of_match_ptr("regulators"), \
+ .id = ATC2609A_ID_LDO##num, \
+ .ops = &atc260x_reg_range_pick_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .linear_ranges = atc2609a_ldo_voltage_ranges##n_range, \
+ .n_linear_ranges = ARRAY_SIZE(atc2609a_ldo_voltage_ranges##n_range), \
+ .vsel_reg = ATC2609A_PMU_LDO##num##_CTL0, \
+ .vsel_mask = GENMASK(4, 1), \
+ .vsel_range_reg = ATC2609A_PMU_LDO##num##_CTL0, \
+ .vsel_range_mask = BIT(5), \
+ .linear_range_selectors = atc260x_ldo_voltage_range_sel, \
+ .enable_reg = ATC2609A_PMU_LDO##num##_CTL0, \
+ .enable_mask = BIT(0), \
+ .enable_time = 2000, \
+ .owner = THIS_MODULE, \
+}
+
+#define atc2609a_reg_desc_ldo_fixed(num) { \
+ .name = "LDO"#num, \
+ .supply_name = "ldo"#num, \
+ .of_match = of_match_ptr("ldo"#num), \
+ .regulators_node = of_match_ptr("regulators"), \
+ .id = ATC2609A_ID_LDO##num, \
+ .ops = &atc260x_reg_fixed_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .min_uV = 2600000, \
+ .uV_step = 100000, \
+ .n_voltages = 8, \
+ .vsel_reg = ATC2609A_PMU_LDO##num##_CTL, \
+ .vsel_mask = GENMASK(15, 13), \
+ .enable_time = 2000, \
+ .owner = THIS_MODULE, \
+}
+
+static const struct regulator_desc atc2609a_reg[] = {
+ atc2609a_reg_desc_dcdc(0, 4),
+ atc2609a_reg_desc_dcdc(1, 5),
+ atc2609a_reg_desc_dcdc(2, 6),
+ atc2609a_reg_desc_dcdc_range(3, 7),
+ atc2609a_reg_desc_dcdc(4, 8),
+ atc2609a_reg_desc_ldo_bypass(0),
+ atc2609a_reg_desc_ldo_bypass(1),
+ atc2609a_reg_desc_ldo_bypass(2),
+ atc2609a_reg_desc_ldo_range_pick(3, 0),
+ atc2609a_reg_desc_ldo_range_pick(4, 0),
+ atc2609a_reg_desc_ldo(5),
+ atc2609a_reg_desc_ldo_range_pick(6, 1),
+ atc2609a_reg_desc_ldo_range_pick(7, 0),
+ atc2609a_reg_desc_ldo_range_pick(8, 0),
+ atc2609a_reg_desc_ldo_fixed(9),
+};
+
+static int atc260x_regulator_probe(struct platform_device *pdev)
+{
+ struct atc260x *atc260x = dev_get_drvdata(pdev->dev.parent);
+ struct device *dev = atc260x->dev;
+ struct atc260x_regulator_data *atc260x_data;
+ struct regulator_config config = {};
+ struct regulator_dev *atc260x_rdev;
+ const struct regulator_desc *regulators;
+ bool atc2603c_ver_b = false;
+ int i, nregulators;
+
+ if (!pdev->dev.of_node)
+ return -ENXIO;
+
+ atc260x_data = devm_kzalloc(&pdev->dev, sizeof(*atc260x_data), GFP_KERNEL);
+ if (!atc260x_data)
+ return -ENOMEM;
+
+ atc260x_data->voltage_time_dcdc = 350;
+ atc260x_data->voltage_time_ldo = 800;
+
+ switch (atc260x->ic_type) {
+ case ATC2603C:
+ atc260x_data->last_dcdc_reg_id = ATC2603C_ID_DCDC3;
+ regulators = atc2603c_reg;
+ nregulators = ATC2603C_ID_MAX;
+ atc2603c_ver_b = atc260x->ic_ver == ATC260X_B;
+ break;
+ case ATC2609A:
+ atc260x_data->last_dcdc_reg_id = ATC2609A_ID_DCDC4;
+ atc260x_data->voltage_time_dcdc = 250;
+ regulators = atc2609a_reg;
+ nregulators = ATC2609A_ID_MAX;
+ break;
+ default:
+ dev_err(dev, "unsupported ATC260X ID %d\n", atc260x->ic_type);
+ return -EINVAL;
+ }
+
+ config.dev = dev;
+ config.regmap = atc260x->regmap;
+ config.driver_data = atc260x_data;
+
+ /* Instantiate the regulators */
+ for (i = 0; i < nregulators; i++) {
+ if (atc2603c_ver_b && regulators[i].id == ATC2603C_ID_DCDC2)
+ atc260x_rdev = devm_regulator_register(&pdev->dev,
+ &atc2603c_reg_dcdc2_ver_b,
+ &config);
+ else
+ atc260x_rdev = devm_regulator_register(&pdev->dev,
+ &regulators[i],
+ &config);
+ if (IS_ERR(atc260x_rdev)) {
+ dev_err(dev, "failed to register regulator: %d\n", i);
+ return PTR_ERR(atc260x_rdev);
+ }
+ }
+
+ return 0;
+}
+
+static const struct of_device_id atc260x_regulator_of_match[] = {
+ { .compatible = "actions,atc2603c-regulator" },
+ { .compatible = "actions,atc2609a-regulator" },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, atc260x_regulator_of_match);
+
+static struct platform_driver atc260x_regulator_driver = {
+ .probe = atc260x_regulator_probe,
+ .driver = {
+ .name = "atc260x-regulator",
+ .of_match_table = of_match_ptr(atc260x_regulator_of_match),
+ },
+};
+
+module_platform_driver(atc260x_regulator_driver);
+
+MODULE_DESCRIPTION("Regulator driver for ATC260x PMICs");
+MODULE_AUTHOR("Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>");
+MODULE_AUTHOR("Cristian Ciocaltea <cristian.ciocaltea@xxxxxxxxx>");
+MODULE_LICENSE("GPL");
--
2.28.0