• Hans de Goede's avatar
    ACPI / battery: Add a blacklist with PMIC ACPI HIDs with a native battery driver · dccfae6d
    Hans de Goede authored
    On some systems we have a native PMIC driver which provides battery
    monitoring, while the ACPI battery driver is broken on these systems
    due to bad DSDTs or because we do not support the proprietary and
    undocumented ACPI opregions these ACPI battery devices rely on
    (e.g. BMOP opregion).
    
    This leads to there being 2 battery power_supply-s registed like this:
    
    ~$ acpi
    Battery 0: Charging, 84%, 00:49:39 until charged
    Battery 1: Unknown, 0%, rate information unavailable
    
    Even if the ACPI battery where to function fine (which on systems
    where we have a native PMIC driver it often doesn't) we still do not
    want to export the same battery to userspace twice.
    
    This commit adds a blacklist with PMIC ACPI HIDs for which we've a
    native battery driver and makes the ACPI battery driver not register
    itself when a PMIC on this list is present.
    
    Link: https://bugzilla.kernel.org/show_bug.cgi?id=194811Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
    Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
    dccfae6d
battery.c 39.1 KB