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drivers: sensor: stm32_temp/vbat/vref: ensure the ADC is not suspended

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The STM32 temperature, battery and voltage reference sensors needs to
write the ADC common registers to enable the corresponding ADC features.
For that we need to ensure that the ADC is not suspended by using the
pm_device_runtime_get/put methods.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Aurelien Jarno 2024-05-19 12:22:11 +02:00 • committed by Anas Nashif
commit 2194331431
3 changed files with 9 additions and 0 deletions
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3
drivers/sensor/st/stm32_temp/stm32_temp.c
View file

@ -10,6 +10,7 @@
#include <zephyr/drivers/sensor.h>
#include <zephyr/drivers/adc.h>
#include <zephyr/logging/log.h>
#include <zephyr/pm/device_runtime.h>
#include <stm32_ll_adc.h>
#if defined(CONFIG_SOC_SERIES_STM32H5X)
#include <stm32_ll_icache.h>
@ -74,6 +75,7 @@ static int stm32_temp_sample_fetch(const struct device *dev, enum sensor_channel
}
k_mutex_lock(&data->mutex, K_FOREVER);
pm_device_runtime_get(data->adc);
rc = adc_channel_setup(data->adc, &data->adc_cfg);
if (rc) {
@ -97,6 +99,7 @@ static int stm32_temp_sample_fetch(const struct device *dev, enum sensor_channel
path &= ~LL_ADC_PATH_INTERNAL_TEMPSENSOR);
unlock:
pm_device_runtime_put(data->adc);
k_mutex_unlock(&data->mutex);
return rc;

3
drivers/sensor/st/stm32_vbat/stm32_vbat.c
View file

@ -9,6 +9,7 @@
#include <zephyr/drivers/sensor.h>
#include <zephyr/drivers/adc.h>
#include <zephyr/logging/log.h>
#include <zephyr/pm/device_runtime.h>
#include <stm32_ll_adc.h>
LOG_MODULE_REGISTER(stm32_vbat, CONFIG_SENSOR_LOG_LEVEL);
@ -45,6 +46,7 @@ static int stm32_vbat_sample_fetch(const struct device *dev, enum sensor_channel
}
k_mutex_lock(&data->mutex, K_FOREVER);
pm_device_runtime_get(data->adc);
rc = adc_channel_setup(data->adc, &data->adc_cfg);
@ -67,6 +69,7 @@ static int stm32_vbat_sample_fetch(const struct device *dev, enum sensor_channel
path &= ~LL_ADC_PATH_INTERNAL_VBAT);
unlock:
pm_device_runtime_put(data->adc);
k_mutex_unlock(&data->mutex);
return rc;

3
drivers/sensor/st/stm32_vref/stm32_vref.c
View file

@ -11,6 +11,7 @@
#include <zephyr/drivers/sensor.h>
#include <zephyr/drivers/adc.h>
#include <zephyr/logging/log.h>
#include <zephyr/pm/device_runtime.h>
#include <stm32_ll_adc.h>
#if defined(CONFIG_SOC_SERIES_STM32H5X)
#include <stm32_ll_icache.h>
@ -45,6 +46,7 @@ static int stm32_vref_sample_fetch(const struct device *dev, enum sensor_channel
}
k_mutex_lock(&data->mutex, K_FOREVER);
pm_device_runtime_get(data->adc);
rc = adc_channel_setup(data->adc, &data->adc_cfg);
if (rc) {
@ -71,6 +73,7 @@ static int stm32_vref_sample_fetch(const struct device *dev, enum sensor_channel
unlock:
pm_device_runtime_put(data->adc);
k_mutex_unlock(&data->mutex);
return rc;