Re: [PATCH 3/3] thermal/drivers/mediatek/lvts_thermal: Disable undesired interrupts

From: AngeloGioacchino Del Regno
Date: Wed May 03 2023 - 11:12:24 EST


Il 28/04/23 21:53, 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 hot threshold, for any of the sensors
* The temperature went over the hot to normal threshold, for any of the
sensors
* The temperature went over the stage3 threshold

These are the only thresholds configured by the driver through the
HTHRE, H2NTHRE, and PROTTC registers, respectively.

The current interrupt mask in LVTS_MONINT_CONF, enables many more
interrupts, including offset detection and 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@xxxxxxxxxxxxx>


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