[ Upstream commit 72cacd06e47d86d89b0e7179fbc9eb3a0f39cd93 ] This patch prevents from registering thermal entries and letting the driver misbehave if efuse data is invalid. A device is not properly calibrated if the golden temperature is zero. Fixes: f5f633b18234 ("thermal/drivers/mediatek: Add the Low Voltage Thermal Sensor driver") Signed-off-by: Julien Panis <jpanis@baylibre.com> Reviewed-by: Nicolas Pitre <npitre@baylibre.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20240604-mtk-thermal-calib-check-v2-1-8f258254051d@baylibre.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>