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c56beff203
This is used for the Siemens Simatic IPC BX-59A, which can monitor the voltage of the CMOS battery with two bits that indicate low or empty state Signed-off-by: xingtong.wu <xingtong.wu@siemens.com> Link: https://lore.kernel.org/r/20230731072148.4781-1-xingtong_wu@163.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>