[PATCH v2 00/13] thermal: tegra: Do not register cooling device

[Thierry Reding <thierry.reding@gmail.com>]

From: Thierry Reding <treding@nvidia.com>

Hi,

this set of patches removes the registration of the SOCTHERM internal
throttling mechanism as cooling device. Since this throttling starts
automatically once a certain temperature threshold is crossed, it
doesn't make sense to represent it as a cooling device, which are
typically "manually" activated by the thermal framework when thermal
sensors report temperature thresholds being crossed.

Instead of using the cooling device mechanism, this statically programs
the throttling mechanism when it is configured in device tree. In order
to do this, an additional device tree property is needed to replace the
information that was previously contained in trip points.

There's a few preparatory patches to make the removal a bit simpler and
also some follow up cleanups included as well.

Changes in v2:
- rework the device tree bindings:
  - add nvidia,thermal-zones property to attach throttling to zones
  - use -millicelsius suffix and add hysteresis
- add patch to store thermal zone device tree node for later use
- add patch to enforce self-encapsulation of the thermal core now that
  no drivers need to reach into it anymore

This applies on top of Daniel's self-encapsulation hardening series:

	https://lore.kernel.org/all/20231012102700.2858952-1-daniel.lezcano@linaro.org/

Thierry

Thierry Reding (13):
  thermal: Store device tree node for thermal zone devices
  dt-bindings: thermal: tegra: Document throttle temperature
  dt-bindings: thermal: tegra: Add nvidia,thermal-zones property
  thermal: tegra: Use driver-private data consistently
  thermal: tegra: Constify SoC-specific data
  thermal: tegra: Do not register cooling device
  thermal: tegra: Use unsigned int where appropriate
  thermal: tegra: Avoid over-allocation of temporary array
  thermal: tegra: Remove gratuitous error assignment
  thermal: tegra: Minor stylistic cleanups
  ARM: tegra: Rework SOCTHERM on Tegra124
  arm64: tegra: Rework SOCTHERM on Tegra132 and Tegra210
  thermal: Enforce self-encapsulation

 .../thermal/nvidia,tegra124-soctherm.yaml     |  19 +
 arch/arm/boot/dts/nvidia/tegra124.dtsi        |  68 +--
 arch/arm64/boot/dts/nvidia/tegra132.dtsi      |  66 +--
 arch/arm64/boot/dts/nvidia/tegra210.dtsi      |  86 +--
 drivers/thermal/tegra/soctherm.c              | 525 ++++++++----------
 drivers/thermal/tegra/soctherm.h              |   1 +
 drivers/thermal/tegra/tegra124-soctherm.c     |   4 +
 drivers/thermal/tegra/tegra132-soctherm.c     |   4 +
 drivers/thermal/tegra/tegra210-soctherm.c     |   4 +
 drivers/thermal/thermal_core.h                |   2 +-
 drivers/thermal/thermal_of.c                  |   3 +
 11 files changed, 329 insertions(+), 453 deletions(-)

-- 
2.42.0