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

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Date:   Fri, 10 Feb 2023 07:44:56 +0100
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     bchihi@...libre.com, angelogioacchino.delregno@...labora.com,
        rafael@...nel.org, amitk@...nel.org, rui.zhang@...el.com,
        matthias.bgg@...il.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, rdunlap@...radead.org,
        ye.xingchen@....com.cn, p.zabel@...gutronix.de
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org,
        khilman@...libre.com, james.lo@...iatek.com,
        rex-bc.chen@...iatek.com
Subject: Re: [PATCH v14 0/6] Add LVTS Thermal Architecture

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