drivers: adc: nrfx: synchronize upstream changes #3211
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jaz1-nordic
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…n single-mode" This reverts commit e54b994. Signed-off-by: Jakub Zymelka <[email protected]>
… single-ended ADC readings" This reverts commit 84ab620. Signed-off-by: Jakub Zymelka <[email protected]>
…C internal sampling timer" This reverts commit 77547f8. Signed-off-by: Jakub Zymelka <[email protected]>
…al sampling timer The SAMPLERATE register can be used as a local timer instead of triggering individual SAMPLE tasks. When SAMPLERATE.MODE is set to Timers, it is sufficient to trigger SAMPLE task only once in order to start the SAADC and triggering the STOP task will stop sampling. The SAMPLERATE.CC field controls the sample rate. The SAMPLERATE timer should not be combined with SCAN mode and only one channel should be enabled when using the internal timer. (cherry picked from commit 376b34c) Signed-off-by: Jakub Zymelka <[email protected]>
…ended ADC readings The ADC driver API already supports ADC readings which can return signed values, these are differential readings. In Nordic's datasheet, we have a mode called "single ended", but its just a name. "Single ended" is a differential reading, with the negative channel tied to GND. This is not compatible with zephyrs definition of a single ended reading. To support Nordic's "single ended" mode, the user must configure a differential reading, with the negative input tied to ground, which the saadc driver can then use to configure the reading as Nordic SAADC "single ended", and return negative values as expected. (cherry picked from commit 138f977) Signed-off-by: Jakub Zymelka <[email protected]>
…rection Increment pointer only when channel was selected. Upstream PR #: 94705 Signed-off-by: Jakub Zymelka <[email protected]>
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Rollback of obsolete commits and replacing them with correct ones already merged in upstream.