* [PATCH v3 1/2] regulator: dt-bindings: adi,adp5055-regulator: Add adp5055 support
2025-04-03 2:43 [PATCH v3 0/2] Add support for ADP5055 triple buck regulator Alexis Czezar Torreno
@ 2025-04-03 2:43 ` Alexis Czezar Torreno
2025-04-03 6:40 ` Krzysztof Kozlowski
2025-04-03 2:43 ` [PATCH v3 2/2] regulator: adp5055: Add driver for adp5055 Alexis Czezar Torreno
1 sibling, 1 reply; 8+ messages in thread
From: Alexis Czezar Torreno @ 2025-04-03 2:43 UTC (permalink / raw)
To: Liam Girdwood, Mark Brown, Rob Herring, Krzysztof Kozlowski,
Conor Dooley
Cc: linux-kernel, devicetree, Alexis Czezar Torreno
Add documentation for devicetree bindings for ADP5055. The device consists
of 3 buck regulators able to connect to high input voltages of up to 18V
with no preregulators.
Signed-off-by: Alexis Czezar Torreno <alexisczezar.torreno@analog.com>
---
.../bindings/regulator/adi,adp5055-regulator.yaml | 157 +++++++++++++++++++++
MAINTAINERS | 6 +
2 files changed, 163 insertions(+)
diff --git a/Documentation/devicetree/bindings/regulator/adi,adp5055-regulator.yaml b/Documentation/devicetree/bindings/regulator/adi,adp5055-regulator.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..a55d564d8d0783fe5d503d4c5e2f6a38fc0702cd
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/adi,adp5055-regulator.yaml
@@ -0,0 +1,157 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/adi,adp5055-regulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices ADP5055 Triple Buck Regulator
+
+maintainers:
+ - Alexis Czezar Torreno <alexisczezar.torreno@analog.com>
+
+description: |
+ The ADP5055 combines three high performance buck regulator. The device enables
+ direct connection to high input voltages up to 18 V with no preregulators.
+ https://www.analog.com/media/en/technical-documentation/data-sheets/adp5055.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,adp5055
+
+ reg:
+ enum:
+ - 0x70
+ - 0x71
+
+ adi,tset-us:
+ description:
+ Setting time used by the device. This is changed via soldering specific
+ resistor values on the CFG2 pin.
+ enum: [2600, 20800]
+ default: 2600
+
+ adi,ocp-blanking:
+ description:
+ If present, overcurrent protection (OCP) blanking for all regulator is on.
+ type: boolean
+
+ adi,delay-power-good:
+ description:
+ Configures delay timer of the power good (PWRGD) pin. Delay is based on
+ Tset which can be 2.6 ms or 20.8 ms.
+ type: boolean
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+patternProperties:
+ "^buck[0-2]$":
+ type: object
+ $ref: regulator.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ enable-gpios:
+ maxItems: 1
+ description:
+ GPIO specifier to enable the GPIO control for each regulator. The
+ driver supports two modes of enable, hardware only (GPIOs) or software
+ only (Registers). Pure hardware enabling requires each regulator to
+ contain this property. If at least one regulator does not have this,
+ the driver automatically switches to software only mode.
+
+ adi,dvs-limit-upper-microvolt:
+ description:
+ Configure the allowable upper side limit of the voltage output of each
+ regulator in microvolt. Relative to the default Vref trimming value.
+ Vref = 600 mV. Voltages are in 12 mV steps, value is autoadjusted.
+ Vout_high = Vref_trim + dvs-limit-upper.
+ minimum: 12000
+ maximum: 192000
+ default: 192000
+
+ adi,dvs-limit-lower-microvolt:
+ description:
+ Configure the allowable lower side limit of the voltage output of each
+ regulator in microvolt. Relative to the default Vref trimming value.
+ Vref = 600 mV. Voltages are in 12 mV steps, value is autoadjusted.
+ Vout_low = Vref_trim + dvs-limit-lower.
+ minimum: -190500
+ maximum: -10500
+ default: -190500
+
+ adi,fast-transient:
+ description:
+ Configures the fast transient sensitivity for each regulator.
+ "none" - No fast transient.
+ "3G_1.5%" - 1.5% window with 3*350uA/V
+ "5G_1.5%" - 1.5% window with 5*350uA/V
+ "5G_2.5%" - 2.5% window with 5*350uA/V
+ enum: [none, 3G_1.5%, 5G_1.5%, 5G_2.5%]
+ default: 5G_2.5
+
+ adi,mask-power-good:
+ description:
+ If present, masks individual regulators PWRGD signal to the external
+ PWRGD hardware pin.
+ type: boolean
+
+ required:
+ - regulator-name
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ regulator@70 {
+ compatible = "adi,adp5055";
+ reg = <0x70>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adi,tset-us = <2600>;
+ adi,ocp-blanking;
+ adi,delay-power-good;
+
+ buck0 {
+ regulator-name = "buck0";
+ enable-gpios = <&gpio 17 GPIO_ACTIVE_HIGH>;
+ adi,dvs-limit-upper-microvolt = <192000>;
+ adi,dvs-limit-lower-microvolt = <(-190500)>;
+ adi,fast-transient = "5G_2.5%";
+ adi,mask-power-good;
+ };
+
+ buck1 {
+ regulator-name = "buck1";
+ enable-gpios = <&gpio 18 GPIO_ACTIVE_HIGH>;
+ adi,dvs-limit-upper-microvolt = <192000>;
+ adi,dvs-limit-lower-microvolt = <(-190500)>;
+ adi,fast-transient = "5G_2.5%";
+ adi,mask-power-good;
+ };
+
+ buck2 {
+ regulator-name = "buck2";
+ enable-gpios = <&gpio 19 GPIO_ACTIVE_HIGH>;
+ adi,dvs-limit-upper-microvolt = <192000>;
+ adi,dvs-limit-lower-microvolt = <(-190500)>;
+ adi,fast-transient = "5G_2.5%";
+ adi,mask-power-good;
+ };
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 896a307fa06545e2861abe46ea7029f9b4d3628e..b2ec43f84d84765c319d8403fb5650afa273db83 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1525,6 +1525,12 @@ W: https://ez.analog.com/linux-software-drivers
F: Documentation/devicetree/bindings/iio/filter/adi,admv8818.yaml
F: drivers/iio/filter/admv8818.c
+ANALOG DEVICES INC ADP5055 DRIVER
+M: Alexis Czezar Torreno <alexisczezar.torreno@analog.com>
+S: Supported
+W: https://ez.analog.com/linux-software-drivers
+F: Documentation/devicetree/bindings/regulator/adi,adp5055-regulator.yaml
+
ANALOG DEVICES INC ADP5061 DRIVER
M: Michael Hennerich <Michael.Hennerich@analog.com>
L: linux-pm@vger.kernel.org
--
2.34.1
^ permalink raw reply [flat|nested] 8+ messages in thread* [PATCH v3 2/2] regulator: adp5055: Add driver for adp5055
2025-04-03 2:43 [PATCH v3 0/2] Add support for ADP5055 triple buck regulator Alexis Czezar Torreno
2025-04-03 2:43 ` [PATCH v3 1/2] regulator: dt-bindings: adi,adp5055-regulator: Add adp5055 support Alexis Czezar Torreno
@ 2025-04-03 2:43 ` Alexis Czezar Torreno
2025-04-03 11:08 ` Mark Brown
1 sibling, 1 reply; 8+ messages in thread
From: Alexis Czezar Torreno @ 2025-04-03 2:43 UTC (permalink / raw)
To: Liam Girdwood, Mark Brown, Rob Herring, Krzysztof Kozlowski,
Conor Dooley
Cc: linux-kernel, devicetree, Alexis Czezar Torreno
Add ADI ADP5055 driver support. The device consists
of 3 buck regulators able to connect to high input voltages of up to 18V
with no preregulators.
Signed-off-by: Alexis Czezar Torreno <alexisczezar.torreno@analog.com>
---
MAINTAINERS | 1 +
drivers/regulator/Kconfig | 11 +
drivers/regulator/Makefile | 1 +
drivers/regulator/adp5055-regulator.c | 470 ++++++++++++++++++++++++++++++++++
4 files changed, 483 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index b2ec43f84d84765c319d8403fb5650afa273db83..7ac35d895b4c8297c6de70cd2bfaec516ff5b100 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1530,6 +1530,7 @@ M: Alexis Czezar Torreno <alexisczezar.torreno@analog.com>
S: Supported
W: https://ez.analog.com/linux-software-drivers
F: Documentation/devicetree/bindings/regulator/adi,adp5055-regulator.yaml
+F: drivers/regulator/adp5055-regulator.c
ANALOG DEVICES INC ADP5061 DRIVER
M: Michael Hennerich <Michael.Hennerich@analog.com>
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 39297f7d8177193e51c99bc2b360c6d9936e62fe..4c08cf755d88e5f5bc6431192fad5f27786caea8 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -122,6 +122,17 @@ config REGULATOR_AD5398
This driver supports AD5398 and AD5821 current regulator chips.
If building into module, its name is ad5398.ko.
+config REGULATOR_ADP5055
+ tristate "Analog Devices ADP5055 Triple Buck Regulator"
+ depends on I2C
+ select REGMAP_I2C
+ help
+ This driver controls an Analog Devices ADP5055 with triple buck
+ regulators using an I2C interface.
+
+ Say M here if you want to include support for the regulator as a
+ module.
+
config REGULATOR_ANATOP
tristate "Freescale i.MX on-chip ANATOP LDO regulators"
depends on ARCH_MXC || COMPILE_TEST
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 3d5a803dce8a0556ba9557fa069c6e37593b3c69..71f45d9317d24e7081ac919eb31efff6652edf3f 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -22,6 +22,7 @@ obj-$(CONFIG_REGULATOR_AB8500) += ab8500-ext.o ab8500.o
obj-$(CONFIG_REGULATOR_ACT8865) += act8865-regulator.o
obj-$(CONFIG_REGULATOR_ACT8945A) += act8945a-regulator.o
obj-$(CONFIG_REGULATOR_AD5398) += ad5398.o
+obj-$(CONFIG_REGULATOR_ADP5055) += adp5055-regulator.o
obj-$(CONFIG_REGULATOR_ANATOP) += anatop-regulator.o
obj-$(CONFIG_REGULATOR_ARIZONA_LDO1) += arizona-ldo1.o
obj-$(CONFIG_REGULATOR_ARIZONA_MICSUPP) += arizona-micsupp.o
diff --git a/drivers/regulator/adp5055-regulator.c b/drivers/regulator/adp5055-regulator.c
new file mode 100644
index 0000000000000000000000000000000000000000..7a1a091f41680466d69f2bdafc9595837bc8c793
--- /dev/null
+++ b/drivers/regulator/adp5055-regulator.c
@@ -0,0 +1,470 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Regulator driver for Analog Devices ADP5055
+//
+// Copyright (C) 2025 Analog Devices, Inc.
+
+#include <linux/bitfield.h>
+#include <linux/device.h>
+#include <linux/gpio/consumer.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/regmap.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/of_regulator.h>
+
+// ADP5055 Register Map.
+
+#define ADP5055_CTRL123 0xD1
+#define ADP5055_CTRL_MODE1 0xD3
+#define ADP5055_CTRL_MODE2 0xD4
+#define ADP5055_DLY0 0xD5
+#define ADP5055_DLY1 0xD6
+#define ADP5055_DLY2 0xD7
+#define ADP5055_VID0 0xD8
+#define ADP5055_VID1 0xD9
+#define ADP5055_VID2 0xDA
+#define ADP5055_DVS_LIM0 0xDC
+#define ADP5055_DVS_LIM1 0xDD
+#define ADP5055_DVS_LIM2 0xDE
+#define ADP5055_FT_CFG 0xDF
+#define ADP5055_PG_CFG 0xE0
+
+// ADP5055 Field Masks.
+
+#define ADP5055_MASK_EN_MODE BIT(0)
+#define ADP5055_MASK_OCP_BLANKING BIT(7)
+#define ADP5055_MASK_PSM BIT(4)
+#define ADP5055_MASK_DIS2 BIT(2)
+#define ADP5055_MASK_DIS1 BIT(1)
+#define ADP5055_MASK_DIS0 BIT(0)
+#define ADP5055_MASK_DIS_DLY GENMASK(6, 4)
+#define ADP5055_MASK_EN_DLY GENMASK(2, 0)
+#define ADP5055_MASK_DVS_LIM_UPPER GENMASK(7, 4)
+#define ADP5055_MASK_DVS_LIM_LOWER GENMASK(3, 0)
+#define ADP5055_MASK_FAST_TRANSIENT2 GENMASK(5, 4)
+#define ADP5055_MASK_FAST_TRANSIENT1 GENMASK(3, 2)
+#define ADP5055_MASK_FAST_TRANSIENT0 GENMASK(1, 0)
+#define ADP5055_MASK_DLY_PWRGD BIT(4)
+#define ADP5055_MASK_PWRGD2 BIT(2)
+#define ADP5055_MASK_PWRGD1 BIT(1)
+#define ADP5055_MASK_PWRGD0 BIT(0)
+
+#define ADP5055_MIN_VOUT 408000
+#define ADP5055_NUM_CH 3
+
+struct adp5055 {
+ struct device *dev;
+ struct regmap *regmap;
+ u32 tset;
+ struct gpio_desc *en_gpiod[ADP5055_NUM_CH];
+ bool en_mode_software;
+ int dvs_limit_upper[ADP5055_NUM_CH];
+ int dvs_limit_lower[ADP5055_NUM_CH];
+ u32 fast_transient[ADP5055_NUM_CH];
+ bool mask_power_good[ADP5055_NUM_CH];
+};
+
+static const unsigned int adp5055_tset_vals[] = {
+ 2600,
+ 20800,
+};
+
+static const unsigned int adp5055_enable_delay_vals_2_6[] = {
+ 0,
+ 2600,
+ 5200,
+ 7800,
+ 10400,
+ 13000,
+ 15600,
+ 18200,
+};
+
+static const unsigned int adp5055_enable_delay_vals_20_8[] = {
+ 0,
+ 20800,
+ 41600,
+ 62400,
+ 83200,
+ 104000,
+ 124800,
+ 145600,
+};
+
+static const char * const adp5055_fast_transient_vals[] = {
+ "none",
+ "3G_1.5%",
+ "5G_1.5%",
+ "5G_2.5%",
+};
+
+static int adp5055_get_prop_index(const u32 *table, size_t table_size,
+ u32 value)
+{
+ int i;
+
+ for (i = 0; i < table_size; i++)
+ if (table[i] == value)
+ return i;
+
+ return -EINVAL;
+}
+
+static const struct regmap_range adp5055_reg_ranges[] = {
+ regmap_reg_range(0xD1, 0xE0),
+};
+
+static const struct regmap_access_table adp5055_access_ranges_table = {
+ .yes_ranges = adp5055_reg_ranges,
+ .n_yes_ranges = ARRAY_SIZE(adp5055_reg_ranges),
+};
+
+static const struct regmap_config adp5055_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = 0xE0,
+ .wr_table = &adp5055_access_ranges_table,
+ .rd_table = &adp5055_access_ranges_table,
+};
+
+static const struct linear_range adp5055_voltage_ranges[] = {
+ REGULATOR_LINEAR_RANGE(ADP5055_MIN_VOUT, 0, 255, 1500),
+};
+
+static int adp5055_parse_fw(struct device *dev, struct adp5055 *adp5055)
+{
+ int i, ret;
+ struct regmap *regmap = adp5055->regmap;
+ int val;
+ bool ocp_blanking;
+ bool delay_power_good;
+
+ ret = device_property_read_u32(dev, "adi,tset-us", &adp5055->tset);
+ if (!ret) {
+ ret = adp5055_get_prop_index(adp5055_tset_vals,
+ ARRAY_SIZE(adp5055_tset_vals), adp5055->tset);
+ if (ret < 0)
+ return dev_err_probe(dev, ret,
+ "Failed to initialize tset.");
+ adp5055->tset = adp5055_tset_vals[ret];
+ }
+
+ ocp_blanking = device_property_read_bool(dev, "adi,ocp-blanking");
+
+ delay_power_good = device_property_read_bool(dev,
+ "adi,delay-power-good");
+
+ for (i = 0; i < ADP5055_NUM_CH; i++) {
+ val = FIELD_PREP(ADP5055_MASK_DVS_LIM_UPPER,
+ DIV_ROUND_CLOSEST_ULL(192000 - adp5055->dvs_limit_upper[i], 12000));
+ val |= FIELD_PREP(ADP5055_MASK_DVS_LIM_LOWER,
+ DIV_ROUND_CLOSEST_ULL(adp5055->dvs_limit_lower[i] + 190500, 12000));
+ ret = regmap_write(regmap, ADP5055_DVS_LIM0 + i, val);
+ if (ret)
+ return ret;
+
+ i++;
+ };
+
+ val = FIELD_PREP(ADP5055_MASK_EN_MODE, adp5055->en_mode_software);
+ ret = regmap_write(regmap, ADP5055_CTRL_MODE1, val);
+ if (ret)
+ return ret;
+
+ val = FIELD_PREP(ADP5055_MASK_OCP_BLANKING, ocp_blanking);
+ ret = regmap_update_bits(regmap, ADP5055_CTRL_MODE2,
+ ADP5055_MASK_OCP_BLANKING, val);
+ if (ret)
+ return ret;
+
+ val = FIELD_PREP(ADP5055_MASK_FAST_TRANSIENT2, adp5055->fast_transient[2]);
+ val |= FIELD_PREP(ADP5055_MASK_FAST_TRANSIENT1, adp5055->fast_transient[1]);
+ val |= FIELD_PREP(ADP5055_MASK_FAST_TRANSIENT0, adp5055->fast_transient[0]);
+ ret = regmap_write(regmap, ADP5055_FT_CFG, val);
+ if (ret)
+ return ret;
+
+ val = FIELD_PREP(ADP5055_MASK_DLY_PWRGD, delay_power_good);
+ val |= FIELD_PREP(ADP5055_MASK_PWRGD2, adp5055->mask_power_good[2]);
+ val |= FIELD_PREP(ADP5055_MASK_PWRGD1, adp5055->mask_power_good[1]);
+ val |= FIELD_PREP(ADP5055_MASK_PWRGD0, adp5055->mask_power_good[0]);
+ ret = regmap_write(regmap, ADP5055_PG_CFG, val);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int adp5055_of_parse_cb(struct device_node *np,
+ const struct regulator_desc *desc,
+ struct regulator_config *config)
+{
+ struct adp5055 *adp5055 = config->driver_data;
+ int id, ret, pval, i;
+
+ id = desc->id;
+
+ if (of_property_read_bool(np, "enable-gpios")) {
+ adp5055->en_gpiod[id] = devm_fwnode_gpiod_get(config->dev,
+ of_fwnode_handle(np), "enable",
+ GPIOD_OUT_LOW, "enable");
+ if (IS_ERR(adp5055->en_gpiod[id]))
+ return dev_err_probe(config->dev, PTR_ERR(adp5055->en_gpiod[id]),
+ "Failed to get enable GPIO\n");
+ } else {
+ adp5055->en_mode_software = true;
+ }
+
+ ret = of_property_read_u32(np, "adi,dvs-limit-upper-microvolt", &pval);
+ if (ret)
+ adp5055->dvs_limit_upper[id] = 192000;
+ else
+ adp5055->dvs_limit_upper[id] = pval;
+
+ if (adp5055->dvs_limit_upper[id] > 192000 || adp5055->dvs_limit_upper[id] < 12000)
+ return dev_err_probe(config->dev, adp5055->dvs_limit_upper[id],
+ "Out of range - dvs-limit-upper-microvolt value.");
+
+ ret = of_property_read_u32(np, "adi,dvs-limit-lower-microvolt", &pval);
+ if (ret)
+ adp5055->dvs_limit_lower[id] = -190500;
+ else
+ adp5055->dvs_limit_lower[id] = pval;
+
+ if (adp5055->dvs_limit_lower[id] > -10500 || adp5055->dvs_limit_lower[id] < -190500)
+ return dev_err_probe(config->dev, adp5055->dvs_limit_lower[id],
+ "Out of range - dvs-limit-lower-microvolt value.");
+
+ for (i = 0; i < 4; i++) {
+ ret = of_property_match_string(np, "adi,fast-transient",
+ adp5055_fast_transient_vals[i]);
+ if (!ret)
+ break;
+ }
+
+ if (ret < 0)
+ adp5055->fast_transient[id] = 3;
+ else
+ adp5055->fast_transient[id] = i;
+
+ adp5055->mask_power_good[id] = of_property_read_bool(np, "adi,mask-power-good");
+
+ return 0;
+}
+
+static int adp5055_is_enabled(struct regulator_dev *rdev)
+{
+ struct adp5055 *adp5055 = rdev_get_drvdata(rdev);
+ int id = rdev_get_id(rdev);
+ int val;
+
+ if (adp5055->en_mode_software)
+ return regulator_is_enabled_regmap(rdev);
+
+ val = gpiod_get_value_cansleep(adp5055->en_gpiod[id]);
+
+ return val;
+};
+
+static int adp5055_enable(struct regulator_dev *rdev)
+{
+ struct adp5055 *adp5055 = rdev_get_drvdata(rdev);
+ int id = rdev_get_id(rdev);
+
+ if (adp5055->en_mode_software)
+ return regulator_enable_regmap(rdev);
+
+ gpiod_set_value_cansleep(adp5055->en_gpiod[id], 1);
+
+ return 0;
+}
+
+static int adp5055_disable(struct regulator_dev *rdev)
+{
+ struct adp5055 *adp5055 = rdev_get_drvdata(rdev);
+ int id = rdev_get_id(rdev);
+
+ if (adp5055->en_mode_software)
+ return regulator_disable_regmap(rdev);
+
+ gpiod_set_value_cansleep(adp5055->en_gpiod[id], 0);
+
+ return 0;
+}
+
+static int adp5055_set_mode(struct regulator_dev *rdev, u32 mode)
+{
+ struct adp5055 *adp5055 = rdev_get_drvdata(rdev);
+ int id, ret;
+
+ id = rdev_get_id(rdev);
+
+ switch (mode) {
+ case REGULATOR_MODE_NORMAL:
+ ret = regmap_update_bits(adp5055->regmap, ADP5055_CTRL_MODE2,
+ ADP5055_MASK_PSM << id, 0);
+ break;
+ case REGULATOR_MODE_IDLE:
+ ret = regmap_update_bits(adp5055->regmap, ADP5055_CTRL_MODE2,
+ ADP5055_MASK_PSM << id, ADP5055_MASK_PSM << id);
+ break;
+ default:
+ return dev_err_probe(&rdev->dev, -EINVAL,
+ "Unsupported mode: %d\n", mode);
+ }
+
+ return ret;
+}
+
+static unsigned int adp5055_get_mode(struct regulator_dev *rdev)
+{
+ struct adp5055 *adp5055 = rdev_get_drvdata(rdev);
+ int id, ret, regval;
+
+ id = rdev_get_id(rdev);
+
+ ret = regmap_read(adp5055->regmap, ADP5055_CTRL_MODE2, ®val);
+ if (ret)
+ return ret;
+
+ if (regval & (ADP5055_MASK_PSM << id))
+ return REGULATOR_MODE_IDLE;
+ else
+ return REGULATOR_MODE_NORMAL;
+}
+
+static const struct regulator_ops adp5055_ops = {
+ .list_voltage = regulator_list_voltage_linear_range,
+ .map_voltage = regulator_map_voltage_linear_range,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_active_discharge = regulator_set_active_discharge_regmap,
+ .enable = adp5055_enable,
+ .disable = adp5055_disable,
+ .is_enabled = adp5055_is_enabled,
+ .set_mode = adp5055_set_mode,
+ .get_mode = adp5055_get_mode,
+ .set_ramp_delay = regulator_set_ramp_delay_regmap,
+};
+
+#define ADP5055_REG_(_name, _id, _ch, _ops) \
+ [_id] = { \
+ .name = _name, \
+ .of_match = of_match_ptr(_name), \
+ .of_parse_cb = adp5055_of_parse_cb, \
+ .id = _id, \
+ .ops = _ops, \
+ .linear_ranges = adp5055_voltage_ranges, \
+ .n_linear_ranges = ARRAY_SIZE(adp5055_voltage_ranges), \
+ .vsel_reg = ADP5055_VID##_ch, \
+ .vsel_mask = GENMASK(7, 0), \
+ .enable_reg = ADP5055_CTRL123, \
+ .enable_mask = BIT(_ch), \
+ .active_discharge_on = ADP5055_MASK_DIS##_id, \
+ .active_discharge_off = 0, \
+ .active_discharge_mask = ADP5055_MASK_DIS##_id, \
+ .active_discharge_reg = ADP5055_CTRL_MODE2, \
+ .ramp_reg = ADP5055_DLY##_ch, \
+ .ramp_mask = ADP5055_MASK_EN_DLY, \
+ .n_ramp_values = ARRAY_SIZE(adp5055_enable_delay_vals_2_6), \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ }
+
+#define ADP5055_REG(_name, _id, _ch) \
+ ADP5055_REG_(_name, _id, _ch, &adp5055_ops)
+
+static struct regulator_desc adp5055_regulators[] = {
+ ADP5055_REG("buck0", 0, 0),
+ ADP5055_REG("buck1", 1, 1),
+ ADP5055_REG("buck2", 2, 2),
+};
+
+static const struct of_device_id adp5055_dt_ids[] = {
+ { .compatible = "adi,adp5055"},
+ { }
+};
+MODULE_DEVICE_TABLE(of, adp5055_dt_ids);
+
+static int adp5055_probe(struct i2c_client *client)
+{
+ struct regulator_init_data *init_data;
+ struct device *dev = &client->dev;
+ struct adp5055 *adp5055;
+ int i, ret;
+
+ init_data = of_get_regulator_init_data(dev, client->dev.of_node,
+ &adp5055_regulators[0]);
+ if (!init_data)
+ return -EINVAL;
+
+ adp5055 = devm_kzalloc(dev, sizeof(struct adp5055), GFP_KERNEL);
+ if (!adp5055)
+ return -ENOMEM;
+
+ adp5055->tset = 2600;
+ adp5055->en_mode_software = false;
+
+ adp5055->regmap = devm_regmap_init_i2c(client, &adp5055_regmap_config);
+ if (IS_ERR(adp5055->regmap))
+ return dev_err_probe(dev, PTR_ERR(adp5055->regmap), "Failed to allocate reg map");
+
+ for (i = 0; i < ADP5055_NUM_CH; i++) {
+ const struct regulator_desc *desc;
+ struct regulator_config config = { };
+ struct regulator_dev *rdev;
+
+ if (adp5055->tset == 2600)
+ adp5055_regulators[i].ramp_delay_table = adp5055_enable_delay_vals_2_6;
+ else
+ adp5055_regulators[i].ramp_delay_table = adp5055_enable_delay_vals_20_8;
+
+ desc = &adp5055_regulators[i];
+
+ config.dev = dev;
+ config.driver_data = adp5055;
+ config.regmap = adp5055->regmap;
+ config.init_data = init_data;
+
+ rdev = devm_regulator_register(dev, desc, &config);
+ if (IS_ERR(rdev)) {
+ return dev_err_probe(dev, PTR_ERR(rdev),
+ "Failed to register %s\n", desc->name);
+ }
+ }
+
+ ret = adp5055_parse_fw(dev, adp5055);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static const struct of_device_id adp5055_of_match[] = {
+ { .compatible = "adi,adp5055", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, adp5055_of_match);
+
+static const struct i2c_device_id adp5055_ids[] = {
+ { .name = "adp5055"},
+ { },
+};
+MODULE_DEVICE_TABLE(i2c, adp5055_ids);
+
+static struct i2c_driver adp5055_driver = {
+ .driver = {
+ .name = "adp5055",
+ .of_match_table = adp5055_of_match,
+ },
+ .probe = adp5055_probe,
+ .id_table = adp5055_ids,
+};
+module_i2c_driver(adp5055_driver);
+
+MODULE_DESCRIPTION("ADP5055 Voltage Regulator Driver");
+MODULE_AUTHOR("Alexis Czezar Torreno <alexisczezar.torreno@analog.com>");
+MODULE_LICENSE("GPL");
--
2.34.1
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