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>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/power/pm2301_charger.c b/drivers/power/pm2301_charger.c
index b560fa5ac4e7..45ef3b9de6b9 100644
--- a/drivers/power/pm2301_charger.c
+++ b/drivers/power/pm2301_charger.c
@@ -1059,6 +1059,13 @@ static int pm2xxx_wall_charger_probe(struct i2c_client *i2c_client,
         ret = pm2xxx_charger_detection(pm2, &val);
 
         if ((ret == 0) && val) {
+                /*
+                 * When boot is due to AC charger plug-in,
+                 * read interrupt registers
+                 */
+                pm2xxx_reg_read(pm2, PM2XXX_REG_INT1, &val);
+                pm2xxx_reg_read(pm2, PM2XXX_REG_INT2, &val);
+                pm2xxx_reg_read(pm2, PM2XXX_REG_INT4, &val);
                 pm2->ac.charger_connected = 1;
                 pm2->ac_conn = true;
                 power_supply_changed(&pm2->ac_chg.psy);