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bq2415x_charger: Add DT support 

This adds DT support to the bq2415x driver.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
This commit is contained in:
Sebastian Reichel 2013-11-24 17:49:30 +01:00 committed by Anton Vorontsov
parent abce97708a
commit faffd234cf
1 changed files with 52 additions and 20 deletions
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68
drivers/power/bq2415x_charger.c
View File

@ -170,6 +170,7 @@ struct bq2415x_device {
struct bq2415x_platform_data init_data;
struct power_supply charger;
struct delayed_work work;
struct power_supply *notify_psy;
struct notifier_block nb;
enum bq2415x_mode reported_mode;/* mode reported by hook function */
enum bq2415x_mode mode; /* current configured mode */
@ -810,7 +811,7 @@ static int bq2415x_notifier_call(struct notifier_block *nb,
if (val != PSY_EVENT_PROP_CHANGED)
return NOTIFY_OK;
if (strcmp(psy->name, bq->init_data.notify_device) != 0)
if (psy != bq->notify_psy)
return NOTIFY_OK;
dev_dbg(bq->dev, "notifier call was called\n");
@ -1542,10 +1543,11 @@ static int bq2415x_probe(struct i2c_client *client,
int num;
char *name;
struct bq2415x_device *bq;
struct power_supply *psy;
struct device_node *np = client->dev.of_node;
struct bq2415x_platform_data *pdata = client->dev.platform_data;
if (!client->dev.platform_data) {
dev_err(&client->dev, "platform data not set\n");
if (!np && !pdata) {
dev_err(&client->dev, "platform data missing\n");
return -ENODEV;
}
@ -1570,6 +1572,17 @@ static int bq2415x_probe(struct i2c_client *client,
goto error_2;
}
if (np) {
bq->notify_psy = power_supply_get_by_phandle(np, "ti,usb-charger-detection");
if (!bq->notify_psy)
return -EPROBE_DEFER;
}
else if (pdata->notify_device)
bq->notify_psy = power_supply_get_by_name(pdata->notify_device);
else
bq->notify_psy = NULL;
i2c_set_clientdata(client, bq);
bq->id = num;
@ -1581,8 +1594,34 @@ static int bq2415x_probe(struct i2c_client *client,
bq->autotimer = 0;
bq->automode = 0;
memcpy(&bq->init_data, client->dev.platform_data,
sizeof(bq->init_data));
if (np) {
ret = of_property_read_u32(np, "ti,current-limit",
&bq->init_data.current_limit);
if (ret)
return ret;
ret = of_property_read_u32(np, "ti,weak-battery-voltage",
&bq->init_data.weak_battery_voltage);
if (ret)
return ret;
ret = of_property_read_u32(np, "ti,battery-regulation-voltage",
&bq->init_data.battery_regulation_voltage);
if (ret)
return ret;
ret = of_property_read_u32(np, "ti,charge-current",
&bq->init_data.charge_current);
if (ret)
return ret;
ret = of_property_read_u32(np, "ti,termination-current",
&bq->init_data.termination_current);
if (ret)
return ret;
ret = of_property_read_u32(np, "ti,resistor-sense",
&bq->init_data.resistor_sense);
if (ret)
return ret;
} else {
memcpy(&bq->init_data, pdata, sizeof(bq->init_data));
}
bq2415x_reset_chip(bq);
@ -1604,25 +1643,18 @@ static int bq2415x_probe(struct i2c_client *client,
goto error_4;
}
if (bq->init_data.notify_device) {
if (bq->notify_psy) {
bq->nb.notifier_call = bq2415x_notifier_call;
ret = power_supply_reg_notifier(&bq->nb);
if (ret) {
dev_err(bq->dev, "failed to reg notifier: %d\n", ret);
goto error_5;
}
psy = power_supply_get_by_name(bq->init_data.notify_device);
if (psy) {
/* Query for initial reported_mode and set it */
bq2415x_notifier_call(&bq->nb,
PSY_EVENT_PROP_CHANGED, psy);
bq2415x_notifier_call(&bq->nb, PSY_EVENT_PROP_CHANGED, bq->notify_psy);
bq2415x_set_mode(bq, bq->reported_mode);
} else {
dev_info(bq->dev, "notifier power supply device (%s) "
"for automode is not registred yet... "
"automode will not work without that device\n",
bq->init_data.notify_device);
}
bq->automode = 1;
dev_info(bq->dev, "automode enabled\n");
} else {
@ -1657,7 +1689,7 @@ static int bq2415x_remove(struct i2c_client *client)
{
struct bq2415x_device *bq = i2c_get_clientdata(client);
if (bq->init_data.notify_device)
if (bq->notify_psy)
power_supply_unreg_notifier(&bq->nb);
bq2415x_sysfs_exit(bq);