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    Subject[PATCH 5.15 254/917] ACPI: battery: Accept charges over the design capacity as full
    Date
    From: André Almeida <andrealmeid@collabora.com>

    [ Upstream commit 2835f327bd1240508db2c89fe94a056faa53c49a ]

    Some buggy firmware and/or brand new batteries can support a charge that's
    slightly over the reported design capacity. In such cases, the kernel will
    report to userspace that the charging state of the battery is "Unknown",
    when in reality the battery charge is "Full", at least from the design
    capacity point of view. Make the fallback condition accepts capacities
    over the designed capacity so userspace knows that is full.

    Signed-off-by: André Almeida <andrealmeid@collabora.com>
    Reviewed-by: Hans de Goede <hdegoede@redhat.com>
    Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
    Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/acpi/battery.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
    index dae91f906cea9..8afa85d6eb6a7 100644
    --- a/drivers/acpi/battery.c
    +++ b/drivers/acpi/battery.c
    @@ -169,7 +169,7 @@ static int acpi_battery_is_charged(struct acpi_battery *battery)
    return 1;

    /* fallback to using design values for broken batteries */
    - if (battery->design_capacity == battery->capacity_now)
    + if (battery->design_capacity <= battery->capacity_now)
    return 1;

    /* we don't do any sort of metric based on percentages */
    --
    2.33.0


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