This commit modifies the STM32 internal temperature sensor driver
to handle erroneous usage more gracefully. More precisely:
- driver no longer builds if no ADC node is enabled
- fail builds with an explicit error message when the sensor
is enabled but the corresponding ADC is not. This can only
happen on STM32 series with more than one ADC (e.g., H7).
Signed-off-by: Mathieu Choplain <mathieu.choplain@st.com>
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>
The temperature being computed using a float variable, use
sensor_value_from_float() instead of sensor_value_from_double(). This
saves some flash.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
