blob: 924e3a596d1a02ffbca5140da078020006262e00 [file] [log] [blame] [edit]
/*
* Copyright (c) 2023 Nordic Semiconductor ASA
* SPDX-License-Identifier: Apache-2.0
*/
#define DT_DRV_COMPAT nordic_npm1100
#include <errno.h>
#include <zephyr/drivers/gpio.h>
#include <zephyr/drivers/regulator.h>
#include <zephyr/dt-bindings/regulator/npm1100.h>
#include <zephyr/toolchain.h>
struct regulator_npm1100_pconfig {
struct gpio_dt_spec iset;
};
struct regulator_npm1100_config {
struct regulator_common_config common;
struct gpio_dt_spec mode;
};
struct regulator_npm1100_data {
struct regulator_common_data data;
};
static int regulator_npm1100_set_mode(const struct device *dev,
regulator_mode_t mode)
{
const struct regulator_npm1100_config *config = dev->config;
if ((config->mode.port == NULL) || (mode > NPM1100_MODE_PWM)) {
return -ENOTSUP;
}
return gpio_pin_set_dt(&config->mode,
mode == NPM1100_MODE_AUTO ? 0 : 1);
}
static int regulator_npm1100_get_mode(const struct device *dev,
regulator_mode_t *mode)
{
const struct regulator_npm1100_config *config = dev->config;
int ret;
if (config->mode.port == NULL) {
return -ENOTSUP;
}
ret = gpio_pin_get_dt(&config->mode);
if (ret < 0) {
return ret;
}
*mode = (ret == 0) ? NPM1100_MODE_AUTO : NPM1100_MODE_PWM;
return 0;
}
static __unused int regulator_npm1100_init(const struct device *dev)
{
const struct regulator_npm1100_config *config = dev->config;
int ret;
if (config->mode.port != NULL) {
if (!gpio_is_ready_dt(&config->mode)) {
return -ENODEV;
}
ret = gpio_pin_configure_dt(&config->mode,
GPIO_INPUT | GPIO_OUTPUT_INACTIVE);
if (ret < 0) {
return ret;
}
}
regulator_common_data_init(dev);
return regulator_common_init(dev, true);
}
static int regulator_npm1100_common_init(const struct device *dev)
{
const struct regulator_npm1100_pconfig *config = dev->config;
if (config->iset.port != NULL) {
int ret;
if (!gpio_is_ready_dt(&config->iset)) {
return -ENODEV;
}
ret = gpio_pin_configure_dt(&config->iset,
GPIO_OUTPUT_INACTIVE);
if (ret < 0) {
return ret;
}
}
return 0;
}
static const __unused struct regulator_driver_api api = {
.set_mode = regulator_npm1100_set_mode,
.get_mode = regulator_npm1100_get_mode,
};
#define REGULATOR_NPM1100_DEFINE_BUCK(node_id, id) \
static struct regulator_npm1100_data data_##id; \
\
static const struct regulator_npm1100_config config_##id = { \
.common = REGULATOR_DT_COMMON_CONFIG_INIT(node_id), \
.mode = GPIO_DT_SPEC_GET_OR(node_id, nordic_mode_gpios, {}), \
}; \
\
DEVICE_DT_DEFINE(node_id, regulator_npm1100_init, NULL, &data_##id, \
&config_##id, POST_KERNEL, \
CONFIG_REGULATOR_NPM1100_INIT_PRIORITY, &api);
#define REGULATOR_NPM1100_DEFINE_BUCK_COND(inst) \
COND_CODE_1(DT_NODE_EXISTS(DT_INST_CHILD(inst, buck)), \
(REGULATOR_NPM1100_DEFINE_BUCK(DT_INST_CHILD(inst, buck), \
buck##inst)), \
())
#define REGULATOR_NPM1100_DEFINE_ALL(inst) \
static const struct regulator_npm1100_pconfig config_##inst = { \
.iset = GPIO_DT_SPEC_INST_GET_OR(inst, nordic_iset_gpios, {}), \
}; \
\
DEVICE_DT_INST_DEFINE(inst, regulator_npm1100_common_init, NULL, NULL, \
&config_##inst, POST_KERNEL, \
CONFIG_REGULATOR_NPM1100_INIT_PRIORITY, NULL); \
\
REGULATOR_NPM1100_DEFINE_BUCK_COND(inst)
DT_INST_FOREACH_STATUS_OKAY(REGULATOR_NPM1100_DEFINE_ALL)