#define CHARGER_STATUS_POLL 10 /* in ms */
+#define CHG_WD_INTERVAL (60 * HZ)
+
/* UsbLineStatus register - usb types */
enum ab8500_charger_link_status {
USB_STAT_NOT_CONFIGURED,
ARRAY_SIZE(ab8500_charger_voltage_map) - 1];
di->ac_chg.max_out_curr = ab8500_charger_current_map[
ARRAY_SIZE(ab8500_charger_current_map) - 1];
+ di->ac_chg.wdt_refresh = CHG_WD_INTERVAL;
di->ac_chg.enabled = di->pdata->ac_enabled;
+ di->ac_chg.external = false;
/* USB supply */
/* power_supply base class */
ARRAY_SIZE(ab8500_charger_voltage_map) - 1];
di->usb_chg.max_out_curr = ab8500_charger_current_map[
ARRAY_SIZE(ab8500_charger_current_map) - 1];
+ di->usb_chg.wdt_refresh = CHG_WD_INTERVAL;
di->usb_chg.enabled = di->pdata->usb_enabled;
+ di->usb_chg.external = false;
/* Create a work queue for the charger */
di->charger_wq =
{
/* Check if charger exists and kick watchdog if charging */
if (di->ac_chg && di->ac_chg->ops.kick_wd &&
- di->chg_info.online_chg & AC_CHG)
+ di->chg_info.online_chg & AC_CHG) {
+ /*
+ * If AB charger watchdog expired, pm2xxx charging
+ * gets disabled. To be safe, kick both AB charger watchdog
+ * and pm2xxx watchdog.
+ */
+ if (di->ac_chg->external &&
+ di->usb_chg && di->usb_chg->ops.kick_wd)
+ di->usb_chg->ops.kick_wd(di->usb_chg);
+
return di->ac_chg->ops.kick_wd(di->ac_chg);
+ }
else if (di->usb_chg && di->usb_chg->ops.kick_wd &&
di->chg_info.online_chg & USB_CHG)
return di->usb_chg->ops.kick_wd(di->usb_chg);
ARRAY_SIZE(pm2xxx_charger_voltage_map) - 1];
pm2->ac_chg.max_out_curr = pm2xxx_charger_current_map[
ARRAY_SIZE(pm2xxx_charger_current_map) - 1];
+ pm2->ac_chg.wdt_refresh = WD_KICK_INTERVAL;
pm2->ac_chg.enabled = true;
+ pm2->ac_chg.external = true;
/* Create a work queue for the charger */
pm2->charger_wq =
/* Watchdog timeout constant */
#define WD_TIMER 0x30 /* 4min */
-#define WD_KICK_INTERVAL (60 * HZ)
+#define WD_KICK_INTERVAL (30 * HZ)
#define PM2XXX_NUM_INT_REG 0x6
* @max_out_volt maximum output charger voltage in mV
* @max_out_curr maximum output charger current in mA
* @enabled indicates if this charger is used or not
+ * @external external charger unit (pm2xxx)
*/
struct ux500_charger {
struct power_supply psy;
struct ux500_charger_ops ops;
int max_out_volt;
int max_out_curr;
+ int wdt_refresh;
bool enabled;
+ bool external;
};
#endif