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ADXL362: Add DTS properties for low-power modes

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This patch adds DTS properties for using wake-up mode
and the autosleep function to the ADXL362 driver.

Signed-off-by: Maximilian Deubel <maximilian.deubel@nordicsemi.no>
This commit is contained in:
Maximilian Deubel 2022-05-18 22:22:58 +02:00 • committed by Carles Cufí
commit 3530fc088b
3 changed files with 22 additions and 21 deletions
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29
drivers/sensor/adxl362/adxl362.c
View file

@ -132,24 +132,6 @@ static int adxl362_software_reset(const struct device *dev)
ADXL362_REG_SOFT_RESET, 1);
}
static int adxl362_set_power_mode(const struct device *dev, uint8_t mode)
{
uint8_t old_power_ctl;
uint8_t new_power_ctl;
int ret;
ret = adxl362_get_reg(dev, &old_power_ctl, ADXL362_REG_POWER_CTL, 1);
if (ret) {
return ret;
}
new_power_ctl = old_power_ctl & ~ADXL362_POWER_CTL_MEASURE(0x3);
new_power_ctl = new_power_ctl |
(mode *
ADXL362_POWER_CTL_MEASURE(ADXL362_MEASURE_ON));
return adxl362_set_reg(dev, new_power_ctl, ADXL362_REG_POWER_CTL, 1);
}
#if defined(CONFIG_ADXL362_ACCEL_ODR_RUNTIME)
/*
* Output data rate map with allowed frequencies:
@ -619,6 +601,7 @@ static const struct sensor_driver_api adxl362_api_funcs = {
static int adxl362_chip_init(const struct device *dev)
{
const struct adxl362_config *config = dev->config;
int ret;
/* Configures activity detection.
@ -696,8 +679,9 @@ static int adxl362_chip_init(const struct device *dev)
return ret;
}
/* Places the device into measure mode. */
ret = adxl362_set_power_mode(dev, 1);
/* Places the device into measure mode, enable wakeup mode and autosleep if desired. */
LOG_DBG("setting pwrctl: 0x%02x", config->power_ctl);
ret = adxl362_set_reg(dev, config->power_ctl, ADXL362_REG_POWER_CTL, 1);
if (ret) {
return ret;
}
@ -735,7 +719,7 @@ static int adxl362_init(const struct device *dev)
adxl362_get_reg(dev, &value, ADXL362_REG_PARTID, 1);
if (value != ADXL362_PART_ID) {
LOG_ERR("Failed: %d\n", value);
LOG_ERR("wrong part_id: %d\n", value);
return -ENODEV;
}
@ -762,6 +746,9 @@ static int adxl362_init(const struct device *dev)
static const struct adxl362_config adxl362_config = {
.bus = SPI_DT_SPEC_INST_GET(0, SPI_WORD_SET(8) | SPI_TRANSFER_MSB, 0),
.power_ctl = ADXL362_POWER_CTL_MEASURE(ADXL362_MEASURE_ON) |
(DT_INST_PROP(0, wakeup_mode) * ADXL362_POWER_CTL_WAKEUP) |
(DT_INST_PROP(0, autosleep) * ADXL362_POWER_CTL_AUTOSLEEP),
#if defined(CONFIG_ADXL362_TRIGGER)
.interrupt = GPIO_DT_SPEC_INST_GET(0, int1_gpios),
#endif

1
drivers/sensor/adxl362/adxl362.h
View file

@ -177,6 +177,7 @@ struct adxl362_config {
uint8_t int1_config;
uint8_t int2_config;
#endif
uint8_t power_ctl;
};
struct adxl362_data {

13
dts/bindings/sensor/adi,adxl362.yaml
View file

@ -15,3 +15,16 @@ properties:
The INT1 signal defaults to active high as produced by the
sensor. The property value should ensure the flags properly
describe the signal that is presented to the driver.
wakeup-mode:
type: boolean
description: |
This mode is intended for extremely low power consumption,
checking for motion only about six times a second.
autosleep:
type: boolean
description: |
Enter Wake-Up mode when inactivity is detected,
reenter Measurement mode when activity is detected.
Only applies for Linked and Loop mode, ignored otherwise.