[Backport v3.4-branch] drivers: lpadc: fix ADC command chaining #60287
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When reading multiple ADC channel in parallel, an ADC command chain will be build. This is similar to a linked list, as every command references the next command. Before this patch every ADC command after the first, would always reference this initial command. So that during execution only two commands (the last and first) would be executed which resulted in readout of only two analog values. As Zephyr expected more to come in, the `read_adc` function would block endlessly. The patch fixes the behaviour and allows a correct chain to build up. Signed-off-by: Elisabeth Friedrich <auxsys@flowerpot.me> (cherry picked from commit f4356f3)
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requested review from
danieldegrasse,
dbaluta,
decsny,
DerekSnell,
dleach02,
EmilioCBen,
iuliana-prodan,
manuargue,
mmahadevan108 and
yvanderv
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duplicate of #60278, which I created because the original PR does not have an associated issue |
decsny
approved these changes
Jul 12, 2023
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Backport f4356f3 from #60111.