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power: smb347: Add settable current max property for mains

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Change-Id: I85ff9fc07b9a9eefad40b729e27887f5a6c1cb84
Signed-off-by: Todd Poynor <toddpoynor@google.com>
This commit is contained in:
Todd Poynor 2012-07-03 14:12:42 -07:00
parent 9232b37c14
commit d067939434
1 changed files with 50 additions and 3 deletions
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53
drivers/power/smb347-charger.c
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@ -135,6 +135,7 @@ struct smb347_charger {
bool mains_online;
bool usb_online;
bool charging_enabled;
unsigned int mains_current_limit;
struct dentry *dentry;
const struct smb347_charger_platform_data *pdata;
};
@ -424,9 +425,9 @@ static int smb347_set_current_limits(struct smb347_charger *smb)
if (ret < 0)
return ret;
if (smb->pdata->mains_current_limit) {
if (smb->mains_current_limit) {
val = current_to_hw(icl_tbl, ARRAY_SIZE(icl_tbl),
smb->pdata->mains_current_limit);
smb->mains_current_limit);
if (val < 0)
return val;
@ -949,15 +950,57 @@ static int smb347_mains_get_property(struct power_supply *psy,
struct smb347_charger *smb =
container_of(psy, struct smb347_charger, mains);
if (prop == POWER_SUPPLY_PROP_ONLINE) {
switch (prop) {
case POWER_SUPPLY_PROP_ONLINE:
val->intval = smb->mains_online;
return 0;
case POWER_SUPPLY_PROP_CURRENT_MAX:
val->intval = smb->mains_current_limit;
return 0;
default:
return -EINVAL;
}
return -EINVAL;
}
static int smb347_mains_set_property(struct power_supply *psy,
enum power_supply_property prop,
const union power_supply_propval *val)
{
struct smb347_charger *smb =
container_of(psy, struct smb347_charger, mains);
switch (prop) {
case POWER_SUPPLY_PROP_CURRENT_MAX:
smb->mains_current_limit = val->intval;
smb347_hw_init(smb);
return 0;
default:
return -EINVAL;
}
return -EINVAL;
}
static int smb347_mains_property_is_writeable(struct power_supply *psy,
enum power_supply_property prop)
{
switch (prop) {
case POWER_SUPPLY_PROP_CURRENT_MAX:
return 1;
default:
break;
}
return 0;
}
static enum power_supply_property smb347_mains_properties[] = {
POWER_SUPPLY_PROP_ONLINE,
POWER_SUPPLY_PROP_CURRENT_MAX,
};
static int smb347_usb_get_property(struct power_supply *psy,
@ -1181,6 +1224,8 @@ static int smb347_probe(struct i2c_client *client,
smb->client = client;
smb->pdata = pdata;
smb->mains_current_limit = smb->pdata->mains_current_limit;
ret = smb347_hw_init(smb);
if (ret < 0)
return ret;
@ -1188,6 +1233,8 @@ static int smb347_probe(struct i2c_client *client,
smb->mains.name = "smb347-mains";
smb->mains.type = POWER_SUPPLY_TYPE_MAINS;
smb->mains.get_property = smb347_mains_get_property;
smb->mains.set_property = smb347_mains_set_property;
smb->mains.property_is_writeable = smb347_mains_property_is_writeable;
smb->mains.properties = smb347_mains_properties;
smb->mains.num_properties = ARRAY_SIZE(smb347_mains_properties);
smb->mains.supplied_to = battery;