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Message-ID: <98580052-492e-5360-fcae-f5a5f8a3da73@collabora.com>
Date:   Fri, 7 Jul 2023 10:21:47 +0200
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Subject: Re: [PATCH v3 4/6] thermal/drivers/mediatek/lvts_thermal: Disable
 undesired interrupts
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        <nfraprado@collabora.com>,
        Daniel Lezcano <daniel.lezcano@linaro.org>
Cc:     Alexandre Bailon <abailon@baylibre.com>,
        Balsam CHIHI <bchihi@baylibre.com>,
        Chen-Yu Tsai <wenst@chromium.org>,
        Alexandre Mergnat <amergnat@baylibre.com>,
        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>
 <20230706153823.201943-5-nfraprado@collabora.com>
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>
In-Reply-To: <20230706153823.201943-5-nfraprado@collabora.com>
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Il 06/07/23 17:37, Nícolas F. R. A. Prado ha scritto:
> Out of the many interrupts supported by the hardware, the only ones of
> interest to the driver currently are:
> * The temperature went over the high offset threshold, for any of the
>    sensors
> * The temperature went below the low offset threshold, for any of the
>    sensors
> * The temperature went over the stage3 threshold
> 
> These are the only thresholds configured by the driver through the
> OFFSETH, OFFSETL, and PROTTC registers, respectively.
> 
> The current interrupt mask in LVTS_MONINT_CONF, enables many more
> interrupts, including data ready on sensors for both filtered and
> immediate mode. These are not only not handled by the driver, but they
> are also triggered too often, causing unneeded overhead. Disable these
> unnecessary interrupts.
> 
> The meaning of each bit can be seen in the comment describing
> LVTS_MONINTST in the IRQ handler.
> 
> Fixes: f5f633b18234 ("thermal/drivers/mediatek: Add the Low Voltage Thermal Sensor driver")
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
> 

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