linux-kernel - Re: [PATCH v11 4/6] thermal/drivers/mediatek: Add the Low Voltage Thermal Sensor driver

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Message-ID: <5dd5c795-5e67-146d-7132-30fc90171d4c@collabora.com>
Date:   Tue, 24 Jan 2023 16:31:09 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     bchihi@...libre.com, daniel.lezcano@...aro.org, 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 v11 4/6] thermal/drivers/mediatek: Add the Low Voltage
 Thermal Sensor driver

Il 24/01/23 14:17, bchihi@...libre.com ha scritto:
> From: Balsam CHIHI <bchihi@...libre.com>
> 
> The Low Voltage Thermal Sensor (LVTS) is a multiple sensors, multi
> controllers contained in a thermal domain.
> 
> A thermal domains can be the MCU or the AP.
> 
> Each thermal domains contain up to seven controllers, each thermal
> controller handle up to four thermal sensors.
> 
> The LVTS has two Finite State Machines (FSM), one to handle the
> functionin temperatures range like hot or cold temperature and another
> one to handle monitoring trip point. The FSM notifies via interrupts
> when a trip point is crossed.
> 
> The interrupt is managed at the thermal controller level, so when an
> interrupt occurs, the driver has to find out which sensor triggered
> such an interrupt.
> 
> The sampling of the thermal can be filtered or immediate. For the
> former, the LVTS measures several points and applies a low pass
> filter.
> 
> Signed-off-by: Balsam CHIHI <bchihi@...libre.com>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>

On MT8195 Tomato Chromebook:
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>