AcoSail/kernel_optimize_test
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Merge branch 'battery' into release

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Len Brown 2009-09-19 01:56:17 -04:00
commit 7a92d80322
1 changed files with 20 additions and 0 deletions
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20
drivers/acpi/battery.c
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@ -31,6 +31,7 @@
#include <linux/types.h>
#include <linux/jiffies.h>
#include <linux/async.h>
#include <linux/dmi.h>
#ifdef CONFIG_ACPI_PROCFS_POWER
#include <linux/proc_fs.h>
@ -87,6 +88,10 @@ static const struct acpi_device_id battery_device_ids[] = {
MODULE_DEVICE_TABLE(acpi, battery_device_ids);
/* 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.
*/
#define QUIRK_SIGNED16_CURRENT 0x0001
struct acpi_battery {
struct mutex lock;
@ -114,6 +119,7 @@ struct acpi_battery {
int state;
int power_unit;
u8 alarm_present;
long quirks;
};
#define to_acpi_battery(x) container_of(x, struct acpi_battery, bat);
@ -392,6 +398,11 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
state_offsets, ARRAY_SIZE(state_offsets));
battery->update_time = jiffies;
kfree(buffer.pointer);
if ((battery->quirks & QUIRK_SIGNED16_CURRENT) &&
battery->rate_now != -1)
battery->rate_now = abs((s16)battery->rate_now);
return result;
}
@ -497,6 +508,14 @@ static void sysfs_remove_battery(struct acpi_battery *battery)
}
#endif
static void acpi_battery_quirks(struct acpi_battery *battery)
{
battery->quirks = 0;
if (dmi_name_in_vendors("Acer") && battery->power_unit) {
battery->quirks |= QUIRK_SIGNED16_CURRENT;
}
}
static int acpi_battery_update(struct acpi_battery *battery)
{
int result, old_present = acpi_battery_present(battery);
@ -515,6 +534,7 @@ 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);
}
#ifdef CONFIG_ACPI_SYSFS_POWER