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authorLin Fuzhen <fuzhen.lin@freescale.com>2012-07-10 09:57:53 +0800
committerLin Fuzhen <fuzhen.lin@freescale.com>2012-07-10 11:33:10 +0800
commit69e46757d03b2d34911a7ecd043dbcf47c5a8d09 (patch)
treecac1b486f08636d4d9056b110ff4ffe75a821026
parent322208e066c37c65f60a74844e5851a2db86696a (diff)
ENGR00216254 mx6 sabresd battery:change battery status update strategy
update the battery info just when the value is changed. Signed-off-by: Lin Fuzhen <fuzhen.lin@freescale.com>
-rwxr-xr-xdrivers/power/sabresd_battery.c19
1 files changed, 7 insertions, 12 deletions
diff --git a/drivers/power/sabresd_battery.c b/drivers/power/sabresd_battery.c
index 460da4a43b72..94d7e4194f96 100755
--- a/drivers/power/sabresd_battery.c
+++ b/drivers/power/sabresd_battery.c
@@ -65,7 +65,6 @@ typedef struct {
u32 percent;
} battery_capacity , *pbattery_capacity;
-static bool capacity_changed_flag;
static int cpu_type_flag;
static int offset_discharger;
static int offset_charger;
@@ -248,9 +247,10 @@ u32 calibration_voltage(struct max8903_data *data)
static void max8903_battery_update_status(struct max8903_data *data)
{
- static int counter;
int temp;
static int temp_last;
+ bool changed_flag;
+ changed_flag = false;
mutex_lock(&data->work_lock);
temp = calibration_voltage(data);
if (temp_last == 0) {
@@ -272,17 +272,13 @@ static void max8903_battery_update_status(struct max8903_data *data)
data->percent = calibrate_battery_capability_percent(data);
if (data->percent != data->old_percent) {
data->old_percent = data->percent;
- capacity_changed_flag = true;
+ changed_flag = true;
}
- if ((capacity_changed_flag == true)) {
- counter++;
- if (counter > 2) {
- counter = 0;
- capacity_changed_flag = false;
- power_supply_changed(&data->bat);
- }
+ if (changed_flag) {
+ changed_flag = false;
+ power_supply_changed(&data->bat);
}
- power_supply_changed(&data->bat);
+
mutex_unlock(&data->work_lock);
}
@@ -560,7 +556,6 @@ static __devinit int max8903_probe(struct platform_device *pdev)
data->pdata = pdata;
data->dev = dev;
platform_set_drvdata(pdev, data);
- capacity_changed_flag = false;
data->usb_in = 0;
data->ta_in = 0;
if (pdata->dc_valid == false && pdata->usb_valid == false) {