Feature/wb7 adc fixup - #96
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vdromanov
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Jun 15, 2022
| info->data->tp_adc_select | | ||
| info->data->adc_chan_select(channel)); | ||
| /* | ||
| * When the IP changes channel, it needs a bit of time to get |
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по-моему, ноги из fifo растут
evgeny-boger
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Jun 15, 2022
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а смотрел кстати реализацию в родном драйвере олвиннера? Они это делают?
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у олвиннера нашел 2 реализации:
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@ExplorerOL попробовал - у него тоже починилось думаю, можно вливать |
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Aug 3, 2022
* sun4i-gpadc: flushing adc fifo after channel has set up * sun4i-gpadc: removed "waiting for correct values after adc channel changed" * bumped version
evgeny-boger
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Mar 26, 2024
* sun4i-gpadc: flushing adc fifo after channel has set up * sun4i-gpadc: removed "waiting for correct values after adc channel changed" * bumped version
taraant
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May 16, 2025
* sun4i-gpadc: flushing adc fifo after channel has set up * sun4i-gpadc: removed "waiting for correct values after adc channel changed" * bumped version
taraant
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May 16, 2025
Original commits:
drivers/iio/adc/Kconfig
e0e8cf4: iio:adc: add WBEC ADC driver
drivers/iio/adc/Makefile
e0e8cf4: iio:adc: add WBEC ADC driver
drivers/iio/adc/adc-wbec.c
e0e8cf4: iio:adc: add WBEC ADC driver
drivers/iio/adc/axp20x_adc.c
af21015: iio: adc: axp20x_adc: fix charging current reporting on AXP22x
6b2eb49: iio:ad:axp20x: add support for NTC thermistor
drivers/iio/adc/sun4i-gpadc-iio.c
26fd41b: iio: adc: sun4i-gpadc-iio: no temp sensor on R40 (submitted to upstream)
eba9a32: mfd: sun4i-gpadc: add of_compatible for child iio driver
be53fc6: iio: adc: sun4i-gpadc-iio: replace delay with sleep
95b3eb5: Feature/wb7 adc fixup (#96)
taraant
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May 20, 2025
* sun4i-gpadc: flushing adc fifo after channel has set up * sun4i-gpadc: removed "waiting for correct values after adc channel changed" * bumped version
taraant
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May 20, 2025
Original commits:
drivers/iio/adc/Kconfig
e0e8cf4: iio:adc: add WBEC ADC driver
drivers/iio/adc/Makefile
e0e8cf4: iio:adc: add WBEC ADC driver
drivers/iio/adc/adc-wbec.c
e0e8cf4: iio:adc: add WBEC ADC driver
drivers/iio/adc/axp20x_adc.c
af21015: iio: adc: axp20x_adc: fix charging current reporting on AXP22x
6b2eb49: iio:ad:axp20x: add support for NTC thermistor
drivers/iio/adc/sun4i-gpadc-iio.c
26fd41b: iio: adc: sun4i-gpadc-iio: no temp sensor on R40 (submitted to upstream)
eba9a32: mfd: sun4i-gpadc: add of_compatible for child iio driver
be53fc6: iio: adc: sun4i-gpadc-iio: replace delay with sleep
95b3eb5: Feature/wb7 adc fixup (#96)
taraant
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Jun 9, 2025
* sun4i-gpadc: flushing adc fifo after channel has set up * sun4i-gpadc: removed "waiting for correct values after adc channel changed" * bumped version
taraant
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Jul 29, 2025
* sun4i-gpadc: flushing adc fifo after channel has set up * sun4i-gpadc: removed "waiting for correct values after adc channel changed" * bumped version
taraant
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Oct 31, 2025
* sun4i-gpadc: flushing adc fifo after channel has set up * sun4i-gpadc: removed "waiting for correct values after adc channel changed" * bumped version
taraant
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Apr 14, 2026
* sun4i-gpadc: flushing adc fifo after channel has set up * sun4i-gpadc: removed "waiting for correct values after adc channel changed" * bumped version
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На всех wb7 присутствует проблема с adc. Для пользователя выглядит, как "периодические странные показания, когда к каналу не подключено ничего".
Экспериментально выяснено:
до фикса (a1-a3 пустые):
проверка гипотезы про fifo: отпаял vin; тем не менее видим на нем показания. Подключено: 0, 3v3, 5v, vin (разорвал)
