PM / AVS: rockchip-cpu-avs: support adjusting initial frequency and voltage

[firefly-linux-kernel-4.4.55.git] / drivers / power / max17040_battery.c

diff --git a/drivers/power/max17040_battery.c b/drivers/power/max17040_battery.c
index 0fbac861080dac5cd6c4f62dc59338444205a60a..8689c80202b532047252840f3f12872aeebcf92b 100644 (file)
--- a/drivers/power/max17040_battery.c
+++ b/drivers/power/max17040_battery.c
@@ -40,7 +40,7 @@
 struct max17040_chip {
        struct i2c_client               *client;
        struct delayed_work             work;
-       struct power_supply             battery;
+       struct power_supply             *battery;
        struct max17040_platform_data   *pdata;
 
        /* State Of Connect */
@@ -57,8 +57,7 @@ static int max17040_get_property(struct power_supply *psy,
                            enum power_supply_property psp,
                            union power_supply_propval *val)
 {
-       struct max17040_chip *chip = container_of(psy,
-                               struct max17040_chip, battery);
+       struct max17040_chip *chip = power_supply_get_drvdata(psy);
 
        switch (psp) {
        case POWER_SUPPLY_PROP_STATUS:
@@ -188,7 +187,8 @@ static void max17040_work(struct work_struct *work)
        max17040_get_online(chip->client);
        max17040_get_status(chip->client);
 
-       schedule_delayed_work(&chip->work, MAX17040_DELAY);
+       queue_delayed_work(system_power_efficient_wq, &chip->work,
+                          MAX17040_DELAY);
 }
 
 static enum power_supply_property max17040_battery_props[] = {
@@ -198,12 +198,20 @@ static enum power_supply_property max17040_battery_props[] = {
        POWER_SUPPLY_PROP_CAPACITY,
 };
 
+static const struct power_supply_desc max17040_battery_desc = {
+       .name           = "battery",
+       .type           = POWER_SUPPLY_TYPE_BATTERY,
+       .get_property   = max17040_get_property,
+       .properties     = max17040_battery_props,
+       .num_properties = ARRAY_SIZE(max17040_battery_props),
+};
+
 static int max17040_probe(struct i2c_client *client,
                        const struct i2c_device_id *id)
 {
        struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
+       struct power_supply_config psy_cfg = {};
        struct max17040_chip *chip;
-       int ret;
 
        if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE))
                return -EIO;
@@ -216,24 +224,21 @@ static int max17040_probe(struct i2c_client *client,
        chip->pdata = client->dev.platform_data;
 
        i2c_set_clientdata(client, chip);
+       psy_cfg.drv_data = chip;
 
-       chip->battery.name              = "battery";
-       chip->battery.type              = POWER_SUPPLY_TYPE_BATTERY;
-       chip->battery.get_property      = max17040_get_property;
-       chip->battery.properties        = max17040_battery_props;
-       chip->battery.num_properties    = ARRAY_SIZE(max17040_battery_props);
-
-       ret = power_supply_register(&client->dev, &chip->battery);
-       if (ret) {
+       chip->battery = power_supply_register(&client->dev,
+                               &max17040_battery_desc, &psy_cfg);
+       if (IS_ERR(chip->battery)) {
                dev_err(&client->dev, "failed: power supply register\n");
-               return ret;
+               return PTR_ERR(chip->battery);
        }
 
        max17040_reset(client);
        max17040_get_version(client);
 
        INIT_DEFERRABLE_WORK(&chip->work, max17040_work);
-       schedule_delayed_work(&chip->work, MAX17040_DELAY);
+       queue_delayed_work(system_power_efficient_wq, &chip->work,
+                          MAX17040_DELAY);
 
        return 0;
 }
@@ -242,7 +247,7 @@ static int max17040_remove(struct i2c_client *client)
 {
        struct max17040_chip *chip = i2c_get_clientdata(client);
 
-       power_supply_unregister(&chip->battery);
+       power_supply_unregister(chip->battery);
        cancel_delayed_work(&chip->work);
        return 0;
 }
@@ -263,7 +268,8 @@ static int max17040_resume(struct device *dev)
        struct i2c_client *client = to_i2c_client(dev);
        struct max17040_chip *chip = i2c_get_clientdata(client);
 
-       schedule_delayed_work(&chip->work, MAX17040_DELAY);
+       queue_delayed_work(system_power_efficient_wq, &chip->work,
+                          MAX17040_DELAY);
        return 0;
 }
 
@@ -277,7 +283,8 @@ static SIMPLE_DEV_PM_OPS(max17040_pm_ops, max17040_suspend, max17040_resume);
 #endif /* CONFIG_PM_SLEEP */
 
 static const struct i2c_device_id max17040_id[] = {
-       { "max17040", 0 },
+       { "max17040" },
+       { "max77836-battery" },
        { }
 };
 MODULE_DEVICE_TABLE(i2c, max17040_id);