Commit 6d0fc797 authored by Laura Nao's avatar Laura Nao Committed by Daniel Lezcano
Browse files

thermal/drivers/mediatek/lvts: Add lvts_temp_to_raw variant 



MT8196/MT6991 require a different version of lvts_temp_to_raw(),
specifically the multiplicative inverse of the existing implementation.
Introduce a variant of the function with inverted calculation logic to
match this requirement.

This ensures accurate raw value generation for temperature
thresholds, avoiding spurious thermal interrupts or unintended hardware
resets on MT8196/MT6991.

Reviewed-by: default avatarChen-Yu Tsai <wenst@chromium.org>
Reviewed-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: default avatarFei Shao <fshao@chromium.org>
Tested-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: default avatarFrank Wunderlich <frank-w@public-files.de>
Signed-off-by: default avatarLaura Nao <laura.nao@collabora.com>
Link: https://patch.msgid.link/20251125-mt8196-lvts-v4-v5-4-6db7eb903fb7@collabora.com


Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
parent a4c40559

drivers/thermal/mediatek/lvts_thermal.c

+9 −0
Original line number Diff line number Diff line
@@ -308,6 +308,15 @@ static u32 lvts_temp_to_raw_mt7988(int temperature, int temp_factor) 
	return raw_temp;

}



static u32 lvts_temp_to_raw_mt8196(int temperature, int temp_factor)

{

	u32 raw_temp;



	raw_temp = temperature - golden_temp_offset;



	return div_s64((s64)temp_factor << 14, raw_temp);

}



static int lvts_get_temp(struct thermal_zone_device *tz, int *temp)

{

	struct lvts_sensor *lvts_sensor = thermal_zone_device_priv(tz);