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-rw-r--r--drivers/power/lp8727_charger.c28
-rw-r--r--include/linux/platform_data/lp8727.h7
2 files changed, 25 insertions, 10 deletions
diff --git a/drivers/power/lp8727_charger.c b/drivers/power/lp8727_charger.c
index b2df114..7c19c09 100644
--- a/drivers/power/lp8727_charger.c
+++ b/drivers/power/lp8727_charger.c
@@ -170,20 +170,21 @@ static void lp8727_ctrl_switch(struct lp8727_chg *pchg, u8 sw)
static void lp8727_id_detection(struct lp8727_chg *pchg, u8 id, int vbusin)
{
+ struct lp8727_platform_data *pdata = pchg->pdata;
u8 devid = ID_NONE;
u8 swctrl = SW_DM1_HiZ | SW_DP2_HiZ;
switch (id) {
case 0x5:
devid = ID_TA;
- pchg->chg_parm = &pchg->pdata->ac;
+ pchg->chg_parm = pdata ? pdata->ac : NULL;
break;
case 0xB:
if (lp8727_is_dedicated_charger(pchg)) {
- pchg->chg_parm = &pchg->pdata->ac;
+ pchg->chg_parm = pdata ? pdata->ac : NULL;
devid = ID_DEDICATED_CHG;
} else if (lp8727_is_usb_charger(pchg)) {
- pchg->chg_parm = &pchg->pdata->usb;
+ pchg->chg_parm = pdata ? pdata->usb : NULL;
devid = ID_USB_CHG;
swctrl = SW_DM1_DM | SW_DP2_DP;
} else if (vbusin) {
@@ -295,6 +296,7 @@ static int lp8727_battery_get_property(struct power_supply *psy,
union power_supply_propval *val)
{
struct lp8727_chg *pchg = dev_get_drvdata(psy->dev->parent);
+ struct lp8727_platform_data *pdata = pchg->pdata;
u8 read;
switch (psp) {
@@ -318,19 +320,31 @@ static int lp8727_battery_get_property(struct power_supply *psy,
val->intval = POWER_SUPPLY_HEALTH_GOOD;
break;
case POWER_SUPPLY_PROP_PRESENT:
- if (pchg->pdata->get_batt_present)
+ if (!pdata)
+ return -EINVAL;
+
+ if (pdata->get_batt_present)
val->intval = pchg->pdata->get_batt_present();
break;
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
- if (pchg->pdata->get_batt_level)
+ if (!pdata)
+ return -EINVAL;
+
+ if (pdata->get_batt_level)
val->intval = pchg->pdata->get_batt_level();
break;
case POWER_SUPPLY_PROP_CAPACITY:
- if (pchg->pdata->get_batt_capacity)
+ if (!pdata)
+ return -EINVAL;
+
+ if (pdata->get_batt_capacity)
val->intval = pchg->pdata->get_batt_capacity();
break;
case POWER_SUPPLY_PROP_TEMP:
- if (pchg->pdata->get_batt_temp)
+ if (!pdata)
+ return -EINVAL;
+
+ if (pdata->get_batt_temp)
val->intval = pchg->pdata->get_batt_temp();
break;
default:
diff --git a/include/linux/platform_data/lp8727.h b/include/linux/platform_data/lp8727.h
index ea98c61..f4bcdd5 100644
--- a/include/linux/platform_data/lp8727.h
+++ b/include/linux/platform_data/lp8727.h
@@ -51,15 +51,16 @@ struct lp8727_chg_param {
* @get_batt_level : get battery voltage (mV)
* @get_batt_capacity : get battery capacity (%)
* @get_batt_temp : get battery temperature
- * @ac, @usb : charging parameters each charger type
+ * @ac : charging parameters for AC type charger
+ * @usb : charging parameters for USB type charger
*/
struct lp8727_platform_data {
u8 (*get_batt_present)(void);
u16 (*get_batt_level)(void);
u8 (*get_batt_capacity)(void);
u8 (*get_batt_temp)(void);
- struct lp8727_chg_param ac;
- struct lp8727_chg_param usb;
+ struct lp8727_chg_param *ac;
+ struct lp8727_chg_param *usb;
};
#endif