drivers: regulator: adp5360: initial version
Add a new regulator driver for Analog Devices ADP5360. While it is a MFD device, only support for BUCK/BUCKBOOST regulators is added in this patch. Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
This commit is contained in:
Gerard Marull-Paretas
Fabio Baltieri
parent
c5d798173c
commit
e05df8faf1
8 changed files with 475 additions and 0 deletions
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@ -4,6 +4,7 @@
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zephyr_library()
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zephyr_library_sources(regulator_common.c)
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zephyr_library_sources_ifdef(CONFIG_REGULATOR_ADP5360 regulator_adp5360.c)
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zephyr_library_sources_ifdef(CONFIG_REGULATOR_FAKE regulator_fake.c)
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zephyr_library_sources_ifdef(CONFIG_REGULATOR_FIXED regulator_fixed.c)
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zephyr_library_sources_ifdef(CONFIG_REGULATOR_NPM1100 regulator_npm1100.c)
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@ -27,6 +27,7 @@ module = REGULATOR
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module-str = regulator
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source "subsys/logging/Kconfig.template.log_config"
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source "drivers/regulator/Kconfig.adp5360"
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source "drivers/regulator/Kconfig.fake"
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source "drivers/regulator/Kconfig.fixed"
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source "drivers/regulator/Kconfig.npm1100"
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28
drivers/regulator/Kconfig.adp5360
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28
drivers/regulator/Kconfig.adp5360
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@ -0,0 +1,28 @@
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# Copyright (c) 2023 Nordic Semiconductor ASA
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# SPDX -License-Identifier: Apache-2.0
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config REGULATOR_ADP5360
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bool "ADP5360 PMIC regulator driver"
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default y
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depends on DT_HAS_ADI_ADP5360_REGULATOR_ENABLED
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select I2C
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help
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Enable the Analog Devices ADP5360 PMIC regulator driver
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if REGULATOR_ADP5360
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config REGULATOR_ADP5360_COMMON_INIT_PRIORITY
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int "ADP5360 regulator driver init priority (common part)"
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default 75
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help
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Init priority for the Analog Devices ADP5360 regulator driver (common
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part). It must be greater than I2C init priority.
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config REGULATOR_ADP5360_INIT_PRIORITY
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int "ADP5360 regulator driver init priority"
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default 76
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help
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Init priority for the Analog Devices ADP5360 regulator driver. It must
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be greater than REGULATOR_ADP5360_COMMON_INIT_PRIORITY.
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endif
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308
drivers/regulator/regulator_adp5360.c
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308
drivers/regulator/regulator_adp5360.c
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@ -0,0 +1,308 @@
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/*
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* Copyright (c) 2023 Nordic Semiconductor ASA
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* SPDX-License-Identifier: Apache-2.0
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*/
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#define DT_DRV_COMPAT adi_adp5360_regulator
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#include <errno.h>
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#include <zephyr/drivers/i2c.h>
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#include <zephyr/drivers/regulator.h>
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#include <zephyr/dt-bindings/regulator/adp5360.h>
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#include <zephyr/sys/linear_range.h>
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#include <zephyr/sys/util.h>
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/* ADP5360 regulator related registers */
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#define ADP5360_BUCK_CFG 0x29U
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#define ADP5360_BUCK_OUTPUT 0x2AU
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#define ADP5360_BUCKBST_CFG 0x2BU
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#define ADP5360_BUCKBST_OUTPUT 0x2CU
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/* Buck/boost configure register. */
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#define ADP5360_BUCK_CFG_SS_MSK GENMASK(7, 6)
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#define ADP5360_BUCK_CFG_SS_POS 6U
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#define ADP5360_BUCK_CFG_BST_ILIM_MSK GENMASK(5, 3)
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#define ADP5360_BUCK_CFG_BST_ILIM_POS 3U
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#define ADP5360_BUCK_CFG_BUCK_ILIM_MSK GENMASK(5, 3)
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#define ADP5360_BUCK_CFG_BUCK_ILIM_POS 3U
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#define ADP5360_BUCK_CFG_BUCK_MODE_MSK BIT(3)
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#define ADP5360_BUCK_CFG_BUCK_MODE_POS 3U
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#define ADP5360_BUCK_CFG_STP_MSK BIT(2)
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#define ADP5360_BUCK_CFG_DISCHG_MSK BIT(1)
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#define ADP5360_BUCK_CFG_EN_MSK BIT(0)
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/* Buck/boost output voltage setting register. */
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#define ADP5360_BUCK_OUTPUT_VOUT_MSK GENMASK(5, 0)
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#define ADP5360_BUCK_OUTPUT_VOUT_POS 0U
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#define ADP5360_BUCK_OUTPUT_DLY_MSK GENMASK(7, 6)
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#define ADP5360_BUCK_OUTPUT_DLY_POS 6U
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struct regulator_adp5360_desc {
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uint8_t cfg_reg;
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uint8_t out_reg;
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bool has_modes;
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const struct linear_range *ranges;
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uint8_t nranges;
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};
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static const struct linear_range buck_ranges[] = {
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LINEAR_RANGE_INIT(600000, 50000U, 0x0U, 0x3FU),
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};
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static const struct regulator_adp5360_desc buck_desc = {
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.cfg_reg = ADP5360_BUCK_CFG,
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.out_reg = ADP5360_BUCK_OUTPUT,
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.has_modes = true,
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.ranges = buck_ranges,
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.nranges = ARRAY_SIZE(buck_ranges),
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};
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static const struct linear_range buckboost_ranges[] = {
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LINEAR_RANGE_INIT(1800000, 100000U, 0x0U, 0x0BU),
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LINEAR_RANGE_INIT(2950000, 50000U, 0xCU, 0x3FU),
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};
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static const struct regulator_adp5360_desc buckboost_desc = {
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.cfg_reg = ADP5360_BUCKBST_CFG,
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.out_reg = ADP5360_BUCKBST_OUTPUT,
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.has_modes = false,
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.ranges = buckboost_ranges,
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.nranges = ARRAY_SIZE(buckboost_ranges),
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};
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struct regulator_adp5360_config {
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struct regulator_common_config common;
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struct i2c_dt_spec i2c;
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const struct regulator_adp5360_desc *desc;
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int8_t dly_idx;
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int8_t ss_idx;
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int8_t ilim_idx;
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bool stp_en;
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bool dis_en;
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};
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struct regulator_adp5360_data {
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struct regulator_common_data data;
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};
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static unsigned int regulator_adp5360_count_voltages(const struct device *dev)
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{
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const struct regulator_adp5360_config *config = dev->config;
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return linear_range_group_values_count(config->desc->ranges, config->desc->nranges);
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}
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static int regulator_adp5360_list_voltage(const struct device *dev, unsigned int idx,
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int32_t *volt_uv)
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{
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const struct regulator_adp5360_config *config = dev->config;
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return linear_range_group_get_value(config->desc->ranges, config->desc->nranges, idx,
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volt_uv);
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}
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static int regulator_adp5360_set_voltage(const struct device *dev, int32_t min_uv, int32_t max_uv)
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{
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const struct regulator_adp5360_config *config = dev->config;
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uint16_t idx;
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int ret;
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ret = linear_range_group_get_win_index(config->desc->ranges, config->desc->nranges, min_uv,
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max_uv, &idx);
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if (ret == -EINVAL) {
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return ret;
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}
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return i2c_reg_update_byte_dt(&config->i2c, config->desc->out_reg,
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ADP5360_BUCK_OUTPUT_VOUT_MSK,
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(uint8_t)idx << ADP5360_BUCK_OUTPUT_VOUT_POS);
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}
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static int regulator_adp5360_get_voltage(const struct device *dev, int32_t *volt_uv)
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{
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const struct regulator_adp5360_config *config = dev->config;
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int ret;
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uint8_t raw_reg;
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ret = i2c_reg_read_byte_dt(&config->i2c, config->desc->out_reg, &raw_reg);
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if (ret < 0) {
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return ret;
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}
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raw_reg = (raw_reg & ADP5360_BUCK_OUTPUT_VOUT_MSK) >> ADP5360_BUCK_OUTPUT_VOUT_POS;
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return linear_range_group_get_value(config->desc->ranges, config->desc->nranges, raw_reg,
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volt_uv);
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}
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static int regulator_adp5360_set_mode(const struct device *dev, regulator_mode_t mode)
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{
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const struct regulator_adp5360_config *config = dev->config;
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if (!config->desc->has_modes || (mode > ADP5360_MODE_PWM)) {
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return -ENOTSUP;
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}
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return i2c_reg_update_byte_dt(&config->i2c, config->desc->cfg_reg,
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ADP5360_BUCK_CFG_BUCK_MODE_MSK,
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mode << ADP5360_BUCK_CFG_BUCK_MODE_POS);
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}
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static int regulator_adp5360_get_mode(const struct device *dev, regulator_mode_t *mode)
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{
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const struct regulator_adp5360_config *config = dev->config;
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uint8_t val;
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int ret;
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if (!config->desc->has_modes) {
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return -ENOTSUP;
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}
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ret = i2c_reg_read_byte_dt(&config->i2c, config->desc->cfg_reg, &val);
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if (ret < 0) {
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return ret;
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}
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*mode = (val & ADP5360_BUCK_CFG_BUCK_MODE_MSK) >> ADP5360_BUCK_CFG_BUCK_MODE_POS;
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return 0;
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}
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static int regulator_adp5360_enable(const struct device *dev)
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{
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const struct regulator_adp5360_config *config = dev->config;
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return i2c_reg_update_byte_dt(&config->i2c, config->desc->cfg_reg, ADP5360_BUCK_CFG_EN_MSK,
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1U);
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}
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static int regulator_adp5360_disable(const struct device *dev)
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{
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const struct regulator_adp5360_config *config = dev->config;
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return i2c_reg_update_byte_dt(&config->i2c, config->desc->cfg_reg, ADP5360_BUCK_CFG_EN_MSK,
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0U);
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}
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static int regulator_adp5360_init(const struct device *dev)
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{
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const struct regulator_adp5360_config *config = dev->config;
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int ret;
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uint8_t val, nval, msk;
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regulator_common_data_init(dev);
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if (!i2c_is_ready_dt(&config->i2c)) {
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return -ENODEV;
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}
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/* apply optional delay */
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msk = 0U;
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nval = 0U;
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ret = i2c_reg_read_byte_dt(&config->i2c, config->desc->out_reg, &val);
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if (ret < 0) {
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return ret;
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}
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if (config->dly_idx >= 0) {
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msk |= ADP5360_BUCK_OUTPUT_DLY_MSK;
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nval |= ((uint8_t)config->dly_idx << ADP5360_BUCK_OUTPUT_DLY_POS) &
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ADP5360_BUCK_OUTPUT_DLY_MSK;
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}
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if (msk != 0U) {
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ret = i2c_reg_write_byte_dt(&config->i2c, config->desc->out_reg,
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(val & ~msk) | nval);
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if (ret < 0) {
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return ret;
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}
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}
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/* apply optional initial configuration */
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msk = 0U;
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nval = 0U;
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ret = i2c_reg_read_byte_dt(&config->i2c, config->desc->cfg_reg, &val);
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if (ret < 0) {
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return ret;
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}
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if (config->ss_idx >= 0) {
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msk |= ADP5360_BUCK_CFG_SS_MSK;
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nval |= ((uint8_t)config->ss_idx << ADP5360_BUCK_CFG_SS_POS) &
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ADP5360_BUCK_CFG_SS_MSK;
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}
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if (config->ilim_idx >= 0) {
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if (config->desc->has_modes) {
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msk |= ADP5360_BUCK_CFG_BUCK_ILIM_MSK;
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nval |= ((uint8_t)config->ilim_idx << ADP5360_BUCK_CFG_BUCK_ILIM_POS) &
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ADP5360_BUCK_CFG_BUCK_ILIM_MSK;
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} else {
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msk |= ADP5360_BUCK_CFG_BST_ILIM_MSK;
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nval |= ((uint8_t)config->ilim_idx << ADP5360_BUCK_CFG_BST_ILIM_POS) &
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ADP5360_BUCK_CFG_BST_ILIM_MSK;
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}
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}
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if (config->stp_en) {
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msk |= ADP5360_BUCK_CFG_STP_MSK;
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nval |= ADP5360_BUCK_CFG_STP_MSK;
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}
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if (config->dis_en) {
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msk |= ADP5360_BUCK_CFG_DISCHG_MSK;
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nval |= ADP5360_BUCK_CFG_DISCHG_MSK;
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}
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if (msk != 0U) {
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ret = i2c_reg_write_byte_dt(&config->i2c, config->desc->cfg_reg,
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(val & ~msk) | nval);
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if (ret < 0) {
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return ret;
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}
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}
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return regulator_common_init(dev, (val & ADP5360_BUCK_CFG_EN_MSK) != 0U);
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}
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static const struct regulator_driver_api api = {
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.enable = regulator_adp5360_enable,
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.disable = regulator_adp5360_disable,
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.count_voltages = regulator_adp5360_count_voltages,
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.list_voltage = regulator_adp5360_list_voltage,
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.set_voltage = regulator_adp5360_set_voltage,
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.get_voltage = regulator_adp5360_get_voltage,
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.set_mode = regulator_adp5360_set_mode,
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.get_mode = regulator_adp5360_get_mode,
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};
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#define REGULATOR_ADP5360_DEFINE(node_id, id, name) \
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static struct regulator_adp5360_data data_##id; \
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\
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static const struct regulator_adp5360_config config_##id = { \
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.common = REGULATOR_DT_COMMON_CONFIG_INIT(node_id), \
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.i2c = I2C_DT_SPEC_GET(DT_GPARENT(node_id)), \
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.desc = &name##_desc, \
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.dly_idx = DT_ENUM_IDX_OR(node_id, adi_switch_delay_us, -1), \
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.ss_idx = DT_ENUM_IDX_OR(node_id, adi_soft_start_ms, -1), \
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.ilim_idx = DT_ENUM_IDX_OR(node_id, adi_ilim_milliamp, -1), \
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.stp_en = DT_PROP(node_id, adi_enable_stop_pulse), \
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.dis_en = DT_PROP(node_id, adi_enable_output_discharge), \
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}; \
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\
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DEVICE_DT_DEFINE(node_id, regulator_adp5360_init, NULL, &data_##id, &config_##id, \
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POST_KERNEL, CONFIG_REGULATOR_ADP5360_INIT_PRIORITY, &api);
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#define REGULATOR_ADP5360_DEFINE_COND(inst, child) \
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COND_CODE_1(DT_NODE_EXISTS(DT_INST_CHILD(inst, child)), \
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(REGULATOR_ADP5360_DEFINE(DT_INST_CHILD(inst, child), child##inst, child)), \
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())
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#define REGULATOR_ADP5360_DEFINE_ALL(inst) \
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REGULATOR_ADP5360_DEFINE_COND(inst, buck) \
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REGULATOR_ADP5360_DEFINE_COND(inst, buckboost)
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DT_INST_FOREACH_STATUS_OKAY(REGULATOR_ADP5360_DEFINE_ALL)
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