[PATCH v5 0/3] iio: adc: ltc2309: add support driver for ltc2305

[Kyle Hsieh]

The series add support for ltc2305 controller from 
Linear Technology Corporation(lltc).
This is low noise, low power, 2 channels 12-bit successive
approximation ADCs.

Signed-off-by: Kyle Hsieh <kylehsieh1995@xxxxxxxxx>
---
Changes in v5:
- Split the patch series to refactor LTC2309 channel enums first.
- Explicitly assign hex values to channel enums based on datasheet.
- Add support for LTC2305 on top of the refactored driver.
- Link to v4: https://lore.kernel.org/r/20260311-add_ltc2305_driver-v4-0-bc350d347f33@xxxxxxxxx

Changes in v4:
- Fix build warning in ltc2309_probe(): initialize 'chip_info'.
- Link to v3: https://lore.kernel.org/r/20260126-add_ltc2305_driver-v3-0-951349a87f97@xxxxxxxxx

Changes in v3:
- Modify ltc2305 channel mask to compatible ltc2309.
- Link to v2: https://lore.kernel.org/r/20251224-add_ltc2305_driver-v2-0-061f78cf45a3@xxxxxxxxx

Changes in v2:
- Reordered chip descriptions and code from low to high order.
- Renamed chip info structure to use ltc2309 driver prefix.
- Switched to i2c_get_match_data().
- Removed unused variables.
- Added chip info to i2c_device_id table.
- Link to v1: https://lore.kernel.org/r/20251223-add_ltc2305_driver-v1-0-dfa0827fd620@xxxxxxxxx

---
Kyle Hsieh (3):
      dt-bindings: adc: ltc2497: add support for ltc2305
      iio: adc: ltc2309: explicitly assign hex values to channel enums
      iio: adc: ltc2309: add support for ltc2305

 .../devicetree/bindings/iio/adc/lltc,ltc2497.yaml  |  7 ++
 drivers/iio/adc/ltc2309.c                          | 81 ++++++++++++++++------
 2 files changed, 67 insertions(+), 21 deletions(-)
---
base-commit: 9448598b22c50c8a5bb77a9103e2d49f134c9578
change-id: 20251223-add_ltc2305_driver-728fa9161bc7

Best regards,
-- 
Kyle Hsieh <kylehsieh1995@xxxxxxxxx>