Lines Matching full:cnv
623 * In 4-wire mode, the CNV line is held high for the entire conversion in ad4000_convert_and_acquire()
624 * and acquisition process. In other modes, the CNV GPIO is optional in ad4000_convert_and_acquire()
625 * and, if provided, replaces controller CS. If CNV GPIO is not defined in ad4000_convert_and_acquire()
884 * device tree property is absent or set to "high". Also, the ADC CNV pin must
923 * connected to MOSI or to VIO and ADC CNV pin is connected either to a SPI
925 * AD4000 series of devices initiate conversions on the rising edge of CNV pin.
927 * If the CNV pin is connected to an SPI controller CS line (which is by default
933 * preparatory transfer to pulse the CS/CNV line.
967 * ADC SDI pin and a GPIO is connected to ADC CNV pin.
968 * The GPIO connected to ADC CNV pin is set outside of the SPI transfer.
976 * Dummy transfer to cause enough delay between CNV going high and SDI in ad4000_prepare_4wire_mode_message()
1036 st->cnv_gpio = devm_gpiod_get_optional(dev, "cnv", GPIOD_OUT_HIGH); in ad4000_probe()
1039 "Failed to get CNV GPIO"); in ad4000_probe()