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

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

@ -177,6 +177,7 @@ struct adxl362_config {
uint8_t int1_config; uint8_t int1_config;
uint8_t int2_config; uint8_t int2_config;
#endif #endif
uint8_t power_ctl;
}; };
struct adxl362_data { 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 The INT1 signal defaults to active high as produced by the
sensor. The property value should ensure the flags properly sensor. The property value should ensure the flags properly
describe the signal that is presented to the driver. 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.