diff options
| author | Lan Tianyu <tianyu.lan@intel.com> | 2011-06-30 11:32:40 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2011-07-14 00:04:12 -0400 |
| commit | ae6f61870490c10a0b0436e5afffa00c9dacffef (patch) | |
| tree | b39d11dd55178656d3d3605c9bdf57242499a3bf /drivers/acpi/battery.c | |
| parent | 8d86e5f91440aa56a5df516bf58fe3883552ad56 (diff) | |
| download | linux-ae6f61870490c10a0b0436e5afffa00c9dacffef.tar.gz | |
ACPI / Battery: Add the power unit macro
This patch is cosmetic only, and makes no functional change. Signed-off-by: Lan Tianyu <tianyu.lan@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/battery.c')
| -rw-r--r-- | drivers/acpi/battery.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index fcc13ac0aa18..611434f413db 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -55,6 +55,9 @@ #define ACPI_BATTERY_NOTIFY_INFO 0x81 #define ACPI_BATTERY_NOTIFY_THRESHOLD 0x82 +/* Battery power unit: 0 means mW, 1 means mA */ +#define ACPI_BATTERY_POWER_UNIT_MA 1 + #define _COMPONENT ACPI_BATTERY_COMPONENT ACPI_MODULE_NAME("battery"); @@ -301,7 +304,8 @@ static enum power_supply_property energy_battery_props[] = { #ifdef CONFIG_ACPI_PROCFS_POWER inline char *acpi_battery_units(struct acpi_battery *battery) { - return (battery->power_unit)?"mA":"mW"; + return (battery->power_unit == ACPI_BATTERY_POWER_UNIT_MA) ? + "mA" : "mW"; } #endif @@ -544,7 +548,7 @@ static int sysfs_add_battery(struct acpi_battery *battery) { int result; - if (battery->power_unit) { + if (battery->power_unit == ACPI_BATTERY_POWER_UNIT_MA) { battery->bat.properties = charge_battery_props; battery->bat.num_properties = ARRAY_SIZE(charge_battery_props); @@ -575,7 +579,8 @@ static void sysfs_remove_battery(struct acpi_battery *battery) static void acpi_battery_quirks(struct acpi_battery *battery) { - if (dmi_name_in_vendors("Acer") && battery->power_unit) { + if (dmi_name_in_vendors("Acer") && + battery->power_unit == ACPI_BATTERY_POWER_UNIT_MA) { set_bit(ACPI_BATTERY_QUIRK_SIGNED16_CURRENT, &battery->flags); } } |