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

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Message-ID: <CAGuA+oo+1tSDhVkrc-2feH9e8wMpBgAa-N1VEOuGN8_c=uo1zw@mail.gmail.com>
Date:   Fri, 10 Feb 2023 10:12:47 +0100
From:   Balsam CHIHI <bchihi@...libre.com>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:     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, 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

Hi Daniel,

On Fri, Feb 10, 2023 at 7:44 AM Daniel Lezcano
<daniel.lezcano@...aro.org> wrote:
>
> 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

Thank you very much!

>
> Patches 5 and 6 should go through the Mediatek tree.
>
> Thanks!
>
>    -- Daniel
>
>
> --
> <http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs
>
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Best regards,
Balsam