[PATCH v9 0/3] hwmon: Add support for the LTC4283 Hot Swap Controller

["Nuno Sá via B4 Relay" <devnull+nuno.sa.analog.com@kernel.org>]

This is v8 for the LTC4283 how swap controller. 

Similar to the LTC4282 device, we're clearing some fault logs in the
reset_history attributes.

Guenter, for my last email worrying about rsense low values, this is
what I got internally:

"10uOhm at the smallest sense voltage of 15mV would be 1500A and 72kW, which
seems a tad excessive. The highest currents I’ve seen are around 200A, and
the -48V market 4283 serves is generally a lot lower than that. Normal values
are around 200uOhm.  I’d say the resolution should be around 1uohm and if a
minimum is needed, 50uOhm is probably safe."

For the resolution, I'm pretty sure I got the tenths of micro
resolution for ltc4282 so I just kept it in here. So, if you don't mind
I would prefer to keep it this way to be safer and changing that now would
require me to change some formulas and I would prefer not to do that at
this stage.

---
Changes in v9:
- Patch 2:
  * Add max and min rsense values to avoid 32bit overflows in power and
    rsense * 256;
  * Fix typo in ltc4283_read_in_alarm() s/LTC4283_CHAN_ADIN34/LTC4283_CHAN_ADIO34;
  * Clamp 'val * MILLI' for LTC4283_ADC1_FS_uV in ltc4283_read_in_alarm();
  * Adapt rsense default and property reading for the new range values.
  * Properly construct an auxdev id from the i2c client.
- Link to v8: https://patch.msgid.link/20260327-ltc4283-support-v8-0-471de255d728@analog.com
---

---
Nuno Sá (3):
      dt-bindings: hwmon: Document the LTC4283 Swap Controller
      hwmon: ltc4283: Add support for the LTC4283 Swap Controller
      gpio: gpio-ltc4283: Add support for the LTC4283 Swap Controller

 .../devicetree/bindings/hwmon/adi,ltc4283.yaml     |  272 +++
 Documentation/hwmon/index.rst                      |    1 +
 Documentation/hwmon/ltc4283.rst                    |  266 +++
 MAINTAINERS                                        |    9 +
 drivers/gpio/Kconfig                               |   15 +
 drivers/gpio/Makefile                              |    1 +
 drivers/gpio/gpio-ltc4283.c                        |  218 +++
 drivers/hwmon/Kconfig                              |   12 +
 drivers/hwmon/Makefile                             |    1 +
 drivers/hwmon/ltc4283.c                            | 1808 ++++++++++++++++++++
 10 files changed, 2603 insertions(+)
---
base-commit: 30a90fa04af6937493fbba20e3e923b5b5a162b4
change-id: 20260303-ltc4283-support-063f78acc5a4
--

Thanks!
- Nuno Sá