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2 commits

Author SHA1 Message Date
Aurelien Jarno
869c60e208 drivers: sensor: stm32_vbat: get vref-mv through the ADC API
Get the vref-mv through the ADC API instead of the device tree. This
saves 8 bytes of SRAM and will be future proof in case, one day, support
for a variable vref is added.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2022-07-06 11:10:42 +02:00
Francois Ramu
32222e07a4 drivers: sensor: add a stm32 sensor driver for the internal VBat
Similar to the internal temperature sensor of the stm32
this driver controls the Vbat monitoring in Volts,
using an ADC internal input and the stm32-vbat node of the DTS.
The ref voltage is given by the ADC.
Note that stm32F1x does not propose the feature.

Signed-off-by: Francois Ramu <francois.ramu@st.com>
2022-07-01 11:34:17 +02:00