diff options
Diffstat (limited to 'drivers/acpi/battery.c')
| -rw-r--r-- | drivers/acpi/battery.c | 26 |
1 files changed, 10 insertions, 16 deletions
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 611434f413db..ff1ff70da384 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -94,11 +94,6 @@ MODULE_DEVICE_TABLE(acpi, battery_device_ids); enum { ACPI_BATTERY_ALARM_PRESENT, ACPI_BATTERY_XINFO_PRESENT, - /* For buggy DSDTs that report negative 16-bit values for either - * charging or discharging current and/or report 0 as 65536 - * due to bad math. - */ - ACPI_BATTERY_QUIRK_SIGNED16_CURRENT, ACPI_BATTERY_QUIRK_PERCENTAGE_CAPACITY, }; @@ -465,9 +460,17 @@ static int acpi_battery_get_state(struct acpi_battery *battery) battery->update_time = jiffies; kfree(buffer.pointer); - if (test_bit(ACPI_BATTERY_QUIRK_SIGNED16_CURRENT, &battery->flags) && - battery->rate_now != -1) + /* For buggy DSDTs that report negative 16-bit values for either + * charging or discharging current and/or report 0 as 65536 + * due to bad math. + */ + if (battery->power_unit == ACPI_BATTERY_POWER_UNIT_MA && + battery->rate_now != ACPI_BATTERY_VALUE_UNKNOWN && + (s16)(battery->rate_now) < 0) { battery->rate_now = abs((s16)battery->rate_now); + printk_once(KERN_WARNING FW_BUG "battery: (dis)charge rate" + " invalid.\n"); + } if (test_bit(ACPI_BATTERY_QUIRK_PERCENTAGE_CAPACITY, &battery->flags) && battery->capacity_now >= 0 && battery->capacity_now <= 100) @@ -577,14 +580,6 @@ static void sysfs_remove_battery(struct acpi_battery *battery) battery->bat.dev = NULL; } -static void acpi_battery_quirks(struct acpi_battery *battery) -{ - if (dmi_name_in_vendors("Acer") && - battery->power_unit == ACPI_BATTERY_POWER_UNIT_MA) { - set_bit(ACPI_BATTERY_QUIRK_SIGNED16_CURRENT, &battery->flags); - } -} - /* * According to the ACPI spec, some kinds of primary batteries can * report percentage battery remaining capacity directly to OS. @@ -628,7 +623,6 @@ static int acpi_battery_update(struct acpi_battery *battery) result = acpi_battery_get_info(battery); if (result) return result; - acpi_battery_quirks(battery); acpi_battery_init_alarm(battery); } if (!battery->bat.dev) |