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drivers: sensor: lsm6dsv16x: add device PM support

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Adds a device PM handling which will ensure acc/gyro channels are off
when the device is suspended.

Signed-off-by: Corey Wharton <xodus7@cwharton.com>
This commit is contained in:
Corey Wharton 2025-02-06 22:01:39 -08:00 • committed by Benjamin Cabé
commit 3fef72a430
4 changed files with 85 additions and 9 deletions
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84
drivers/sensor/st/lsm6dsv16x/lsm6dsv16x.c
View file

@ -14,16 +14,29 @@
#include <zephyr/kernel.h>
#include <zephyr/device.h>
#include <zephyr/init.h>
#include <zephyr/pm/device.h>
#include <string.h>
#include <zephyr/sys/__assert.h>
#include <zephyr/logging/log.h>
#include <zephyr/dt-bindings/sensor/lsm6dsv16x.h>
#include "lsm6dsv16x.h"
#include "lsm6dsv16x_decoder.h"
#include "lsm6dsv16x_rtio.h"
LOG_MODULE_REGISTER(LSM6DSV16X, CONFIG_SENSOR_LOG_LEVEL);
bool lsm6dsv16x_is_active(const struct device *dev)
{
#if defined(CONFIG_PM_DEVICE)
enum pm_device_state state;
(void)pm_device_state_get(dev, &state);
return (state == PM_DEVICE_STATE_ACTIVE);
#else
return true;
#endif /* CONFIG_PM_DEVICE*/
}
/*
* values taken from lsm6dsv16x_data_rate_t in hal/st module. The mode/accuracy
* should be selected through accel-odr property in DT
@ -361,6 +374,10 @@ static int lsm6dsv16x_attr_set(const struct device *dev,
struct lsm6dsv16x_data *data = dev->data;
#endif /* CONFIG_LSM6DSV16X_SENSORHUB */
if (!lsm6dsv16x_is_active(dev)) {
return -EBUSY;
}
switch (chan) {
case SENSOR_CHAN_ACCEL_XYZ:
return lsm6dsv16x_accel_config(dev, chan, attr, val);
@ -517,6 +534,10 @@ static int lsm6dsv16x_attr_get(const struct device *dev,
enum sensor_attribute attr,
struct sensor_value *val)
{
if (!lsm6dsv16x_is_active(dev)) {
return -EBUSY;
}
switch (chan) {
case SENSOR_CHAN_ACCEL_XYZ:
return lsm6dsv16x_accel_get_config(dev, chan, attr, val);
@ -593,6 +614,10 @@ static int lsm6dsv16x_sample_fetch(const struct device *dev,
struct lsm6dsv16x_data *data = dev->data;
#endif /* CONFIG_LSM6DSV16X_SENSORHUB */
if (!lsm6dsv16x_is_active(dev)) {
return -EBUSY;
}
switch (chan) {
case SENSOR_CHAN_ACCEL_XYZ:
lsm6dsv16x_sample_fetch_accel(dev);
@ -864,6 +889,10 @@ static int lsm6dsv16x_channel_get(const struct device *dev,
{
struct lsm6dsv16x_data *data = dev->data;
if (!lsm6dsv16x_is_active(dev)) {
return -EBUSY;
}
switch (chan) {
case SENSOR_CHAN_ACCEL_X:
case SENSOR_CHAN_ACCEL_Y:
@ -1099,6 +1128,46 @@ static int lsm6dsv16x_init(const struct device *dev)
return 0;
}
#if defined(CONFIG_PM_DEVICE)
static int lsm6dsv16x_pm_action(const struct device *dev, enum pm_device_action action)
{
struct lsm6dsv16x_data *data = dev->data;
const struct lsm6dsv16x_config *cfg = dev->config;
stmdev_ctx_t *ctx = (stmdev_ctx_t *)&cfg->ctx;
int ret = 0;
LOG_DBG("PM action: %d", (int)action);
switch (action) {
case PM_DEVICE_ACTION_RESUME:
if (lsm6dsv16x_xl_data_rate_set(ctx, data->accel_freq) < 0) {
LOG_ERR("failed to set accelerometer odr %d", (int)data->accel_freq);
ret = -EIO;
}
if (lsm6dsv16x_gy_data_rate_set(ctx, data->gyro_freq) < 0) {
LOG_ERR("failed to set gyroscope odr %d", (int)data->gyro_freq);
ret = -EIO;
}
break;
case PM_DEVICE_ACTION_SUSPEND:
if (lsm6dsv16x_xl_data_rate_set(ctx, LSM6DSV16X_DT_ODR_OFF) < 0) {
LOG_ERR("failed to disable accelerometer");
ret = -EIO;
}
if (lsm6dsv16x_gy_data_rate_set(ctx, LSM6DSV16X_DT_ODR_OFF) < 0) {
LOG_ERR("failed to disable gyroscope");
ret = -EIO;
}
break;
default:
ret = -ENOTSUP;
break;
}
return ret;
}
#endif /* CONFIG_PM_DEVICE */
#if DT_NUM_INST_STATUS_OKAY(DT_DRV_COMPAT) == 0
#warning "LSM6DSV16X driver enabled without any devices"
#endif
@ -1108,15 +1177,12 @@ static int lsm6dsv16x_init(const struct device *dev)
* LSM6DSV16X_DEFINE_I2C().
*/
#define LSM6DSV16X_DEVICE_INIT(inst) \
SENSOR_DEVICE_DT_INST_DEFINE(inst, \
lsm6dsv16x_init, \
NULL, \
&lsm6dsv16x_data_##inst, \
&lsm6dsv16x_config_##inst, \
POST_KERNEL, \
CONFIG_SENSOR_INIT_PRIORITY, \
&lsm6dsv16x_driver_api);
#define LSM6DSV16X_DEVICE_INIT(inst) \
PM_DEVICE_DT_INST_DEFINE(inst, lsm6dsv16x_pm_action); \
SENSOR_DEVICE_DT_INST_DEFINE(inst, lsm6dsv16x_init, PM_DEVICE_DT_INST_GET(inst), \
&lsm6dsv16x_data_##inst, &lsm6dsv16x_config_##inst, \
POST_KERNEL, CONFIG_SENSOR_INIT_PRIORITY, \
&lsm6dsv16x_driver_api);
#ifdef CONFIG_LSM6DSV16X_TRIGGER
#define LSM6DSV16X_CFG_IRQ(inst) \

2
drivers/sensor/st/lsm6dsv16x/lsm6dsv16x.h
View file

@ -30,6 +30,8 @@
#include <zephyr/drivers/i3c.h>
#endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(i3c) */
bool lsm6dsv16x_is_active(const struct device *dev);
#if DT_ANY_INST_ON_BUS_STATUS_OKAY(i3c)
#define ON_I3C_BUS(cfg) (cfg->i3c.bus != NULL)
#define I3C_INT_PIN(cfg) (cfg->int_en_i3c)

4
drivers/sensor/st/lsm6dsv16x/lsm6dsv16x_rtio.c
View file

@ -153,6 +153,10 @@ void lsm6dsv16x_submit_sync(struct rtio_iodev_sqe *iodev_sqe)
void lsm6dsv16x_submit(const struct device *dev, struct rtio_iodev_sqe *iodev_sqe)
{
if (!lsm6dsv16x_is_active(dev)) {
return;
}
struct rtio_work_req *req = rtio_work_req_alloc();
if (req == NULL) {

4
drivers/sensor/st/lsm6dsv16x/lsm6dsv16x_trigger.c
View file

@ -133,6 +133,10 @@ int lsm6dsv16x_trigger_set(const struct device *dev,
return -EINVAL;
}
if (!lsm6dsv16x_is_active(dev)) {
return -EBUSY;
}
switch (trig->type) {
case SENSOR_TRIG_DATA_READY:
if (trig->chan == SENSOR_CHAN_ACCEL_XYZ) {