+
+static void ds2760_battery_set_charged_work(struct work_struct *work)
+{
+ char bias;
+ struct ds2760_device_info *di = container_of(work,
+ struct ds2760_device_info, set_charged_work.work);
+
+ dev_dbg(di->dev, "%s\n", __func__);
+
+ ds2760_battery_read_status(di);
+
+ /* When we get notified by external circuitry that the battery is
+ * considered fully charged now, we know that there is no current
+ * flow any more. However, the ds2760's internal current meter is
+ * too inaccurate to rely on - spec say something ~15% failure.
+ * Hence, we use the current offset bias register to compensate
+ * that error.
+ */
+
+ if (!power_supply_am_i_supplied(&di->bat))
+ return;
+
+ bias = (signed char) di->current_raw +
+ (signed char) di->raw[DS2760_CURRENT_OFFSET_BIAS];
+
+ dev_dbg(di->dev, "%s: bias = %d\n", __func__, bias);
+
+ w1_ds2760_write(di->w1_dev, &bias, DS2760_CURRENT_OFFSET_BIAS, 1);
+ w1_ds2760_store_eeprom(di->w1_dev, DS2760_EEPROM_BLOCK1);
+ w1_ds2760_recall_eeprom(di->w1_dev, DS2760_EEPROM_BLOCK1);
+
+ /* Write to the di->raw[] buffer directly - the CURRENT_OFFSET_BIAS
+ * value won't be read back by ds2760_battery_read_status() */
+ di->raw[DS2760_CURRENT_OFFSET_BIAS] = bias;
+}
+
+static void ds2760_battery_set_charged(struct power_supply *psy)
+{
+ struct ds2760_device_info *di = to_ds2760_device_info(psy);
+
+ /* postpone the actual work by 20 secs. This is for debouncing GPIO
+ * signals and to let the current value settle. See AN4188. */
+ cancel_delayed_work(&di->set_charged_work);
+ queue_delayed_work(di->monitor_wqueue, &di->set_charged_work, HZ * 20);
+}
+