ab8500-bm: Charge only mode fixes for the ab9540
Fix for charging not getting enabled in charge only mode by
external charger.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
diff --git a/drivers/power/abx500_chargalg.c b/drivers/power/abx500_chargalg.c
index 8ab65a3..a876976 100644
--- a/drivers/power/abx500_chargalg.c
+++ b/drivers/power/abx500_chargalg.c
@@ -26,6 +26,7 @@
#include <linux/mfd/abx500.h>
#include <linux/mfd/abx500/ux500_chargalg.h>
#include <linux/mfd/abx500/ab8500-bm.h>
+#include <linux/notifier.h>
/* Watchdog kick interval */
#define CHG_WD_INTERVAL (6 * HZ)
@@ -243,6 +244,9 @@
struct kobject chargalg_kobject;
};
+/*External charger prepare notifier*/
+BLOCKING_NOTIFIER_HEAD(charger_notifier_list);
+
/* Main battery properties */
static enum power_supply_property abx500_chargalg_props[] = {
POWER_SUPPLY_PROP_STATUS,
@@ -503,6 +507,8 @@
static int abx500_chargalg_ac_en(struct abx500_chargalg *di, int enable,
int vset, int iset)
{
+ static int abx500_chargalg_ex_ac_enable_toggle;
+
if (!di->ac_chg || !di->ac_chg->ops.enable)
return -ENXIO;
@@ -515,6 +521,14 @@
di->chg_info.ac_iset = iset;
di->chg_info.ac_vset = vset;
+ /* Enable external charger */
+ if (enable && di->ac_chg->external &&
+ !abx500_chargalg_ex_ac_enable_toggle) {
+ blocking_notifier_call_chain(&charger_notifier_list,
+ 0, di->dev);
+ abx500_chargalg_ex_ac_enable_toggle++;
+ }
+
return di->ac_chg->ops.enable(di->ac_chg, enable, vset, iset);
}