• Michał Kępień's avatar
    platform/x86: fujitsu-laptop: do not update ACPI device power status · 1c194626
    Michał Kępień authored
    Calling acpi_bus_update_power() for ACPI devices FUJ02B1 and FUJ02E3 is
    pointless as they are not power manageable (neither _PS0 nor _PR0 is
    defined for any of them), which causes their power state to be inherited
    from their parent devices.  Given the ACPI paths of these two devices
    (\_SB.PCI0.LPCB.FJEX, \_SB.FEXT), their parent devices are also not
    power manageable.  These parent devices will thus have their power state
    initialized to ACPI_STATE_D0, which in turn causes the power state for
    both FUJ02B1 and FUJ02E3 to always be ACPI_STATE_D0 ("on").
    
    Remove relevant acpi_bus_update_power() calls along with parts of debug
    messages that they were supposed to have an effect on.
    Signed-off-by: default avatarMichał Kępień <kernel@kempniu.pl>
    Reviewed-by: default avatarJonathan Woithe <jwoithe@just42.net>
    Signed-off-by: default avatarDarren Hart (VMware) <dvhart@infradead.org>
    1c194626
fujitsu-laptop.c 28.2 KB