[PATCH v3 6/6] thermal/drivers/mediatek/lvts_thermal: Manage threshold between sensors

[AngeloGioacchino Del Regno]

Il 06/07/23 17:37, Nícolas F. R. A. Prado ha scritto:
> 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.
> 
> Fixes: f5f633b18234 ("thermal/drivers/mediatek: Add the Low Voltage Thermal Sensor driver")
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado at collabora.com>
> 

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