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Message-ID: <6fb74321-2f85-1a08-e16e-97346bd7e82a@baylibre.com>
Date:   Fri, 7 Jul 2023 16:11:58 +0200
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Subject: Re: [PATCH v3 6/6] thermal/drivers/mediatek/lvts_thermal: Manage
 threshold between sensors
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        <nfraprado@collabora.com>,
        Daniel Lezcano <daniel.lezcano@linaro.org>
Cc:     Alexandre Bailon <abailon@baylibre.com>,
        Balsam CHIHI <bchihi@baylibre.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>,
        Chen-Yu Tsai <wenst@chromium.org>, kernel@collabora.com,
        Amit Kucheria <amitk@kernel.org>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Zhang Rui <rui.zhang@intel.com>,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-mediatek@lists.infradead.org, linux-pm@vger.kernel.org
References: <20230706153823.201943-1-nfraprado@collabora.com>
 <20230706153823.201943-7-nfraprado@collabora.com>
From:   Alexandre Mergnat <amergnat@baylibre.com>
In-Reply-To: <20230706153823.201943-7-nfraprado@collabora.com>
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On 06/07/2023 17:37, Nícolas F. R. A. Prado wrote:
> Each LVTS thermal controller can have up to four sensors, each capable
> of triggering its own interrupt when its measured temperature crosses
> the configured threshold. The threshold for each sensor is handled
> separately by the thermal framework, since each one is registered with
> its own thermal zone and trips. However, the temperature thresholds are
> configured on the controller, and therefore are shared between all
> sensors on that controller.
> 
> When the temperature measured by the sensors is different enough to
> cause the thermal framework to configure different thresholds for each
> one, interrupts start triggering on sensors outside the last threshold
> configured.
> 
> To address the issue, track the thresholds required by each sensor and
> only actually set the highest one in the hardware, and disable
> interrupts for all sensors outside the current configured range.

Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com>

-- 
Regards,
Alexandre