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-rwxr-xr-xdrivers/power/Kconfig1
-rwxr-xr-xdrivers/power/sabresd_battery.c154
-rw-r--r--include/linux/power/sabresd_battery.h1
3 files changed, 89 insertions, 67 deletions
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index 6e53cce3c7fd..a24653787d1d 100755
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -222,7 +222,6 @@ config CHARGER_MAX8903
config SABRESD_MAX8903
tristate "Sabresd Board Battery DC-DC Charger for USB and Adapter Power"
depends on GENERIC_HARDIRQS
- depends on TOUCHSCREEN_MAX11801
help
Say Y to enable support for the MAX8903 DC-DC charger and sysfs on
sabresd board.The driver supports controlling charger and battery
diff --git a/drivers/power/sabresd_battery.c b/drivers/power/sabresd_battery.c
index c7318a6eb02c..a069d4b276a5 100755
--- a/drivers/power/sabresd_battery.c
+++ b/drivers/power/sabresd_battery.c
@@ -65,13 +65,11 @@ typedef struct {
u32 voltage;
u32 percent;
} battery_capacity , *pbattery_capacity;
-
static int cpu_type_flag;
static int offset_discharger;
static int offset_charger;
static int offset_usb_charger;
-
static battery_capacity chargingTable[] = {
{4050, 99},
{4040, 98},
@@ -188,9 +186,9 @@ static enum power_supply_property max8903_battery_props[] = {
POWER_SUPPLY_PROP_HEALTH,
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
};
-
+#ifdef CONFIG_TOUCHSCREEN_MAX11801
extern u32 max11801_read_adc(void);
-
+#endif
static void max8903_charger_update_status(struct max8903_data *data)
{
if (data->usb_in || data->ta_in) {
@@ -208,23 +206,32 @@ static void max8903_charger_update_status(struct max8903_data *data)
} else {
if (gpio_get_value(data->pdata->chg) == 0) {
data->battery_status = POWER_SUPPLY_STATUS_CHARGING;
- } else if (data->ta_in &&
- gpio_get_value(data->pdata->chg) == 1) {
+ } else if (data->ta_in && gpio_get_value(data->pdata->chg) == 1) {
+ if (!data->pdata->feature_flag) {
if (data->percent >= 99)
data->battery_status = POWER_SUPPLY_STATUS_FULL;
else
data->battery_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
+ } else {
+ data->battery_status = POWER_SUPPLY_STATUS_FULL;
}
- else if (data->usb_in &&
- gpio_get_value(data->pdata->chg) == 1) {
+ } else if (data->usb_in && gpio_get_value(data->pdata->chg) == 1) {
+ if (!data->pdata->feature_flag) {
if (data->percent >= 99)
data->battery_status = POWER_SUPPLY_STATUS_FULL;
else
data->battery_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
+ } else {
+ data->battery_status = POWER_SUPPLY_STATUS_FULL;
}
- }
- pr_debug("chg: %d \n", gpio_get_value(data->pdata->chg));
+ }
+ }
+ pr_debug("chg: %d\n", gpio_get_value(data->pdata->chg));
+ pr_debug("dc: %d\n", gpio_get_value(data->pdata->dok));
+ pr_debug("flt: %d\n", gpio_get_value(data->pdata->flt));
}
+
+#ifdef CONFIG_TOUCHSCREEN_MAX11801
static int cmp_func(const void *_a, const void *_b)
{
const int *a = _a, *b = _b;
@@ -235,6 +242,7 @@ static int cmp_func(const void *_a, const void *_b)
return -1;
return 0;
}
+
u32 calibration_voltage(struct max8903_data *data)
{
int volt[ADC_SAMPLE_COUNT];
@@ -275,51 +283,54 @@ u32 calibration_voltage(struct max8903_data *data)
voltage_data = (volt[2] + volt[ADC_SAMPLE_COUNT - 3]) / 2;
return voltage_data;
}
-
+#endif
static void max8903_battery_update_status(struct max8903_data *data)
{
- int temp;
+ int temp = 0;
static int temp_last;
bool changed_flag;
changed_flag = false;
mutex_lock(&data->work_lock);
- temp = calibration_voltage(data);
- if (temp_last == 0) {
- data->voltage_uV = temp;
- temp_last = temp;
- }
- if (data->charger_online == 0 && temp_last != 0) {
- if (temp < temp_last) {
- temp_last = temp;
- data->voltage_uV = temp;
- } else {
- data->voltage_uV = temp_last;
+ if (!data->pdata->feature_flag) {
+#ifdef CONFIG_TOUCHSCREEN_MAX11801
+ temp = calibration_voltage(data);
+#endif
+ if (temp_last == 0) {
+ data->voltage_uV = temp;
+ temp_last = temp;
+ }
+ if (data->charger_online == 0 && temp_last != 0) {
+ if (temp < temp_last) {
+ temp_last = temp;
+ data->voltage_uV = temp;
+ } else {
+ data->voltage_uV = temp_last;
+ }
+ }
+ if (data->charger_online == 1 || data->usb_charger_online == 1) {
+ data->voltage_uV = temp;
+ temp_last = temp;
+ }
+ data->percent = calibrate_battery_capability_percent(data);
+ if (data->percent != data->old_percent) {
+ data->old_percent = data->percent;
+ changed_flag = true;
+ }
+ if (changed_flag) {
+ changed_flag = false;
+ power_supply_changed(&data->bat);
+ }
+ /*
+ *because boot time gap between led framwork and charger
+ *framwork,when system boots with charger attatched,
+ *charger led framwork loses the first charger online event,
+ *add once extra power_supply_changed can fix this issure
+ */
+ if (data->first_delay_count < 200) {
+ data->first_delay_count = data->first_delay_count + 1 ;
+ power_supply_changed(&data->bat);
}
}
- if (data->charger_online == 1 || data->usb_charger_online == 1) {
- data->voltage_uV = temp;
- temp_last = temp;
- }
- data->percent = calibrate_battery_capability_percent(data);
- if (data->percent != data->old_percent) {
- data->old_percent = data->percent;
- changed_flag = true;
- }
- if (changed_flag) {
- changed_flag = false;
- power_supply_changed(&data->bat);
- }
- /*
- because boot time gap between led framwork and charger
- framwork,when system boots with charger attatched, charger
- led framwork loses the first charger online event,add once extra
- power_supply_changed can fix this issure
- */
- if (data->first_delay_count < 200) {
- data->first_delay_count = data->first_delay_count + 1 ;
- power_supply_changed(&data->bat);
- }
-
mutex_unlock(&data->work_lock);
}
@@ -332,22 +343,27 @@ static int max8903_battery_get_property(struct power_supply *bat,
switch (psp) {
case POWER_SUPPLY_PROP_STATUS:
val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
- if (gpio_get_value(di->pdata->chg) == 0) {
- di->battery_status = POWER_SUPPLY_STATUS_CHARGING;
- } else if (di->ta_in &&
- gpio_get_value(di->pdata->chg) == 1) {
+ if (gpio_get_value(di->pdata->chg) == 0) {
+ di->battery_status = POWER_SUPPLY_STATUS_CHARGING;
+ } else if (di->ta_in && gpio_get_value(di->pdata->chg) == 1) {
+ if (!di->pdata->feature_flag) {
if (di->percent >= 99)
di->battery_status = POWER_SUPPLY_STATUS_FULL;
else
di->battery_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
+ } else {
+ di->battery_status = POWER_SUPPLY_STATUS_FULL;
}
- else if (di->usb_in &&
- gpio_get_value(di->pdata->chg) == 1) {
+ } else if (di->usb_in && gpio_get_value(di->pdata->chg) == 1) {
+ if (!di->pdata->feature_flag) {
if (di->percent >= 99)
di->battery_status = POWER_SUPPLY_STATUS_FULL;
else
- di->battery_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
+ di->battery_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
+ } else {
+ di->battery_status = POWER_SUPPLY_STATUS_FULL;
}
+ }
val->intval = di->battery_status;
return 0;
default:
@@ -795,14 +811,13 @@ static __devinit int max8903_probe(struct platform_device *pdev)
ret = request_threaded_irq(gpio_to_irq(pdata->chg),
NULL, max8903_chg,
IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
- "MAX8903 Fault", data);
+ "MAX8903 Status", data);
if (ret) {
- dev_err(dev, "Cannot request irq %d for Fault (%d)\n",
+ dev_err(dev, "Cannot request irq %d for Status (%d)\n",
gpio_to_irq(pdata->flt), ret);
goto err_chg_irq;
}
}
-
ret = device_create_file(&pdev->dev, &max8903_discharger_dev_attr);
if (ret)
dev_err(&pdev->dev, "create device file failed!\n");
@@ -822,7 +837,6 @@ static __devinit int max8903_probe(struct platform_device *pdev)
offset_charger = 1485;
offset_usb_charger = 1285;
}
-
max8903_charger_update_status(data);
max8903_battery_update_status(data);
return 0;
@@ -888,10 +902,14 @@ static int max8903_suspend(struct platform_device *pdev,
if (data) {
struct max8903_pdata *pdata = data->pdata;
if (pdata) {
- irq = gpio_to_irq(pdata->dok);
- enable_irq_wake(irq);
- irq = gpio_to_irq(pdata->uok);
- enable_irq_wake(irq);
+ if (pdata->dc_valid) {
+ irq = gpio_to_irq(pdata->dok);
+ enable_irq_wake(irq);
+ }
+ if (pdata->usb_valid) {
+ irq = gpio_to_irq(pdata->uok);
+ enable_irq_wake(irq);
+ }
cancel_delayed_work(&data->work);
}
}
@@ -923,10 +941,14 @@ static int max8903_resume(struct platform_device *pdev)
max8903_charger_update_status(data);
power_supply_changed(&data->usb);
}
- irq = gpio_to_irq(pdata->dok);
- disable_irq_wake(irq);
- irq = gpio_to_irq(pdata->uok);
- disable_irq_wake(irq);
+ if (pdata->dc_valid) {
+ irq = gpio_to_irq(pdata->dok);
+ disable_irq_wake(irq);
+ }
+ if (pdata->usb_valid) {
+ irq = gpio_to_irq(pdata->uok);
+ disable_irq_wake(irq);
+ }
schedule_delayed_work(&data->work, BATTERY_UPDATE_INTERVAL);
}
}
diff --git a/include/linux/power/sabresd_battery.h b/include/linux/power/sabresd_battery.h
index c251a748a0db..463fa90afdb6 100644
--- a/include/linux/power/sabresd_battery.h
+++ b/include/linux/power/sabresd_battery.h
@@ -38,6 +38,7 @@ struct max8903_pdata {
int flt; /* Fault output */
int dcm; /* Current-Limit Mode input (1: DC, 2: USB) */
int usus; /* USB Suspend Input (1: suspended) */
+ int feature_flag;/*battery capacity feature(0:enable, 1:disable)*/
/* DCM wired to Logic High
Set this true when DCM pin connect to Logic high.*/
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-14 20:47:41 +0000