3bd9352b24
Since nPM1100 may be configured statically in some circuits, BUCK node may note be defined, so neither API ops or init call are used in the code. Add __unused attribute to account for such case. Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
139 lines
4 KiB
C
139 lines
4 KiB
C
/*
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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 nordic_npm1100
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#include <errno.h>
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#include <zephyr/drivers/gpio.h>
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#include <zephyr/drivers/regulator.h>
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#include <zephyr/dt-bindings/regulator/npm1100.h>
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#include <zephyr/toolchain.h>
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struct regulator_npm1100_pconfig {
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struct gpio_dt_spec iset;
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};
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struct regulator_npm1100_config {
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struct regulator_common_config common;
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struct gpio_dt_spec mode;
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};
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struct regulator_npm1100_data {
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struct regulator_common_data data;
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};
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static int regulator_npm1100_set_mode(const struct device *dev,
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regulator_mode_t mode)
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{
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const struct regulator_npm1100_config *config = dev->config;
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if ((config->mode.port == NULL) || (mode > NPM1100_MODE_PWM)) {
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return -ENOTSUP;
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}
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return gpio_pin_set_dt(&config->mode,
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mode == NPM1100_MODE_AUTO ? 0 : 1);
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}
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static int regulator_npm1100_get_mode(const struct device *dev,
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regulator_mode_t *mode)
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{
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const struct regulator_npm1100_config *config = dev->config;
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int ret;
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if (config->mode.port == NULL) {
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return -ENOTSUP;
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}
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ret = gpio_pin_get_dt(&config->mode);
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if (ret < 0) {
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return ret;
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}
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*mode = (ret == 0) ? NPM1100_MODE_AUTO : NPM1100_MODE_PWM;
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return 0;
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}
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static __unused int regulator_npm1100_init(const struct device *dev)
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{
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const struct regulator_npm1100_config *config = dev->config;
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int ret;
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if (config->mode.port != NULL) {
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if (!gpio_is_ready_dt(&config->mode)) {
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return -ENODEV;
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}
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ret = gpio_pin_configure_dt(&config->mode,
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GPIO_INPUT | GPIO_OUTPUT_INACTIVE);
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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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regulator_common_data_init(dev);
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return regulator_common_init(dev, true);
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}
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static int regulator_npm1100_common_init(const struct device *dev)
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{
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const struct regulator_npm1100_pconfig *config = dev->config;
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if (config->iset.port != NULL) {
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int ret;
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if (!gpio_is_ready_dt(&config->iset)) {
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return -ENODEV;
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}
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ret = gpio_pin_configure_dt(&config->iset,
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GPIO_OUTPUT_INACTIVE);
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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 0;
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}
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static const __unused struct regulator_driver_api api = {
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.set_mode = regulator_npm1100_set_mode,
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.get_mode = regulator_npm1100_get_mode,
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};
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#define REGULATOR_NPM1100_DEFINE_BUCK(node_id, id) \
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static struct regulator_npm1100_data data_##id; \
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\
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static const struct regulator_npm1100_config config_##id = { \
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.common = REGULATOR_DT_COMMON_CONFIG_INIT(node_id), \
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.mode = GPIO_DT_SPEC_GET_OR(node_id, nordic_mode_gpios, {}), \
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}; \
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\
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DEVICE_DT_DEFINE(node_id, regulator_npm1100_init, NULL, &data_##id, \
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&config_##id, POST_KERNEL, \
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CONFIG_REGULATOR_NPM1100_INIT_PRIORITY, &api);
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#define REGULATOR_NPM1100_DEFINE_BUCK_COND(inst) \
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COND_CODE_1(DT_NODE_EXISTS(DT_INST_CHILD(inst, buck)), \
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(REGULATOR_NPM1100_DEFINE_BUCK(DT_INST_CHILD(inst, buck), \
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buck##inst)), \
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())
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#define REGULATOR_NPM1100_DEFINE_ALL(inst) \
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static const struct regulator_npm1100_pconfig config_##inst = { \
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.iset = GPIO_DT_SPEC_INST_GET_OR(inst, nordic_iset_gpios, {}), \
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}; \
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\
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DEVICE_DT_INST_DEFINE(inst, regulator_npm1100_common_init, NULL, NULL, \
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&config_##inst, POST_KERNEL, \
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CONFIG_REGULATOR_NPM1100_INIT_PRIORITY, NULL); \
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\
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REGULATOR_NPM1100_DEFINE_BUCK_COND(inst)
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DT_INST_FOREACH_STATUS_OKAY(REGULATOR_NPM1100_DEFINE_ALL)
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