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thermal/drivers/mediatek/lvts: Add lvts_temp_to_raw variant

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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: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Fei Shao <fshao@chromium.org>
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: Frank Wunderlich <frank-w@public-files.de>
Signed-off-by: Laura Nao <laura.nao@collabora.com>
Link: https://patch.msgid.link/20251125-mt8196-lvts-v4-v5-4-6db7eb903fb7@collabora.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This commit is contained in:
Laura Nao
2025-11-25 17:16:54 +01:00
committed by Daniel Lezcano
parent a4c4055949
commit 6d0fc79777
1 changed files with 9 additions and 0 deletions
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9
drivers/thermal/mediatek/lvts_thermal.c
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@@ -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);