[PATCH 0/4] hwmon: (adt7470) Add thermal framework support

[Luiz Angelo Daros de Luca <luizluca@gmail.com>]

The ADT7470 is a temperature monitor and PWM fan controller capable of
monitoring up to 10 external temperature sensors and controlling up to 4
PWM outputs.

Currently, the driver exposes these sensors and PWM controls solely via
the standard hwmon sysfs interface. This patch series integrates the
ADT7470 driver with the kernel's thermal subsystem, allowing its
temperature sensors to be referenced by Device Tree thermal zones.

To avoid saturating the I2C bus during frequent polling by the thermal
core, the thermal callbacks are designed to read from the driver's
internal cache.

Patch 1 adds the YAML device tree binding documentation, defining
the necessary #cooling-cells and #thermal-sensor-cells properties.
Patch 2 performs a minor refactoring to introduce the ADT7470_PWM_MAX
macro, replacing hardcoded values.
Patch 3 registers the 4 PWM channels as optional thermal cooling
devices.
Patch 4 registers the external temperature sensors as optional thermal
zones.

Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>

---
Luiz Angelo Daros de Luca (4):
      dt-bindings: hwmon: add binding for adi,adt7470
      hwmon: (adt7470) Add ADT7470_PWM_MAX macro
      hwmon: (adt7470) Add thermal cooling device support
      hwmon: (adt7470) Add thermal zone sensor support

 .../devicetree/bindings/hwmon/adi,adt7470.yaml     |  53 ++++++
 drivers/hwmon/adt7470.c                            | 180 ++++++++++++++++++++-
 2 files changed, 230 insertions(+), 3 deletions(-)
---
base-commit: ca078d004cf58137bcf8cb24a8b271397431ba58
change-id: 20260716-adt7470_thermalzone-59a102278d72

Best regards,
--  
Luiz Angelo Daros de Luca <luizluca@gmail.com>