Re: [PATCH v14 0/6] Add LVTS Thermal Architecture

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On 09/02/2023 11:56, bchihi@xxxxxxxxxxxx wrote:
From: Balsam CHIHI <bchihi@xxxxxxxxxxxx>

The LVTS (Low Voltage Thermal Sensor) driver is capable of monitoring
multiple hot points. For that, it contains 7 thermal control blocks
dedicated to specific devices on the die. Each control block can handle
up to 4 sensors.

The thermal controller supports several interrupts. One for the cold
trip point, the hot trip point, the return to the normal trip point,
and a specific programmable trip point to monitor the temperature
dynamically.

The temperature measurement can be done in two ways, the immediate mode
where the temperature read is instantaneous and the filtered mode where
the controller uses, by configuration, an average of a set of values
removing the minimum and the maximum.

Finally, it is composed of 2 finite-state machines responsible for
the state of the temperature (cold, hot, hot 2 normal, hot hot),
the triggering of the interrupts, and the monitoring of the temperature.

As requested, the thermal driver has been reworked to reduce
the complexity of the code. At this time, the 4 little CPUs and
the 4 big CPUs are supported by the thermal driver.They are described
in a data structure and more devices can be added later.
The calibration routine has been simplified also.

The series provide the following changes:
  - Move the Mediatek drivers inside a dedicated folder as their number
    is increasing
  - Add the DT bindings for the controller
  - Add the efuse node for the mt8195
  - The LVTS driver
  - The thermal zones description in the DT

Applied patch 1,2 and 4 for v6.3

Patches 5 and 6 should go through the Mediatek tree.

Thanks!

  -- Daniel


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