direct access of driver_data is going away.
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
 
 static unsigned long wm97xx_read_bat(struct power_supply *bat_ps)
 {
-       return wm97xx_read_aux_adc(bat_ps->dev->parent->driver_data,
+       return wm97xx_read_aux_adc(dev_get_drvdata(bat_ps->dev->parent),
                                        pdata->batt_aux) * pdata->batt_mult /
                                        pdata->batt_div;
 }
 
 static unsigned long wm97xx_read_temp(struct power_supply *bat_ps)
 {
-       return wm97xx_read_aux_adc(bat_ps->dev->parent->driver_data,
+       return wm97xx_read_aux_adc(dev_get_drvdata(bat_ps->dev->parent),
                                        pdata->temp_aux) * pdata->temp_mult /
                                        pdata->temp_div;
 }