On 8/22/25 06:15, Michael Walle wrote:

The on-board uC on the SMARC-sAM67 board is compatible with the older
CPLD implementation on the SMARC-sAL28 board, but has different sensors,
namely two voltage sensors and one temperature sensor. Add support for it.

Signed-off-by: Michael Walle <mwalle@kernel.org>
---
  drivers/hwmon/sl28cpld-hwmon.c | 76 ++++++++++++++++++++++++++++++++--

Documentation/hwmon/sl28cpld.rst would have to be updated as well.

...

  static const struct of_device_id sl28cpld_hwmon_of_match[] = {
-	{ .compatible = "kontron,sl28cpld-fan" },
+	{ .compatible = "kontron,sl28cpld-fan", .data = &sl28cpld_hwmon_chip_info },
+	{ .compatible = "kontron,sa67mcu-hwmon", .data = &sa67mcu_hwmon_chip_info },

Effectively this means that the two chips have completely different functionality.
One reports fan speeds, the other reports voltages and current.
This should be a separate driver.

Guenter