difsel            209 drivers/iio/adc/stm32-adc.c 	u32			difsel;
difsel            908 drivers/iio/adc/stm32-adc.c 	stm32_adc_writel(adc, STM32H7_ADC_DIFSEL, adc->difsel);
difsel           1650 drivers/iio/adc/stm32-adc.c 		adc->difsel |= BIT(chan->channel);