openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

power: supply: act8945a_charger: Fix the power supply type 

The power supply type property is varying as the external power
supply changes. It is not a constant.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
This commit is contained in:
Wenyou Yang 2016-08-25 15:19:54 +08:00 committed by Sebastian Reichel
parent a09209acd6
commit 10ca08b07b
1 changed files with 39 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

48
drivers/power/supply/act8945a_charger.c
View File

@ -78,6 +78,7 @@ static const char *act8945a_charger_manufacturer = "Active-semi";
struct act8945a_charger {
struct power_supply *psy;
struct power_supply_desc desc;
struct regmap *regmap;
struct work_struct work;
@ -250,14 +251,6 @@ static int act8945a_charger_get_property(struct power_supply *psy,
return ret;
}
static const struct power_supply_desc act8945a_charger_desc = {
.name = "act8945a-charger",
.type = POWER_SUPPLY_TYPE_BATTERY,
.get_property = act8945a_charger_get_property,
.properties = act8945a_charger_props,
.num_properties = ARRAY_SIZE(act8945a_charger_props),
};
static int act8945a_enable_interrupt(struct act8945a_charger *charger)
{
struct regmap *regmap = charger->regmap;
@ -281,11 +274,39 @@ static int act8945a_enable_interrupt(struct act8945a_charger *charger)
return 0;
}
static unsigned int act8945a_set_supply_type(struct act8945a_charger *charger,
unsigned int *type)
{
unsigned int status, state;
int ret;
ret = regmap_read(charger->regmap, ACT8945A_APCH_STATUS, &status);
if (ret < 0)
return ret;
ret = regmap_read(charger->regmap, ACT8945A_APCH_STATE, &state);
if (ret < 0)
return ret;
if (status & APCH_STATUS_INDAT) {
if (state & APCH_STATE_ACINSTAT)
*type = POWER_SUPPLY_TYPE_MAINS;
else
*type = POWER_SUPPLY_TYPE_USB;
} else {
*type = POWER_SUPPLY_TYPE_BATTERY;
}
return 0;
}
static void act8945a_work(struct work_struct *work)
{
struct act8945a_charger *charger =
container_of(work, struct act8945a_charger, work);
act8945a_set_supply_type(charger, &charger->desc.type);
power_supply_changed(charger->psy);
}
@ -440,11 +461,20 @@ static int act8945a_charger_probe(struct platform_device *pdev)
return ret;
}
charger->desc.name = "act8945a-charger";
charger->desc.get_property = act8945a_charger_get_property;
charger->desc.properties = act8945a_charger_props;
charger->desc.num_properties = ARRAY_SIZE(act8945a_charger_props);
ret = act8945a_set_supply_type(charger, &charger->desc.type);
if (ret)
return -EINVAL;
psy_cfg.of_node = pdev->dev.of_node;
psy_cfg.drv_data = charger;
charger->psy = devm_power_supply_register(&pdev->dev,
&act8945a_charger_desc,
&charger->desc,
&psy_cfg);
if (IS_ERR(charger->psy)) {
dev_err(&pdev->dev, "failed to register power supply\n");