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authorLan Tianyu <tianyu.lan@intel.com>2011-06-30 11:32:40 +0800
committerLen Brown <len.brown@intel.com>2011-07-14 00:04:12 -0400
commitae6f61870490c10a0b0436e5afffa00c9dacffef (patch)
treeb39d11dd55178656d3d3605c9bdf57242499a3bf /drivers/acpi/battery.c
parent8d86e5f91440aa56a5df516bf58fe3883552ad56 (diff)
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.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index fcc13ac0aa1..611434f413d 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);
}
}