2015-05-06 20:40 GMT+09:00 Laurentiu Palcu <laurentiu.palcu@xxxxxxxxx>:
> On Tue, May 05, 2015 at 07:32:10PM +0300, Anda-Maria Nicolae wrote:
>> +static int rt9455_probe(struct i2c_client *client,
>> + const struct i2c_device_id *id)
>> +{
>> + struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
>> + struct device *dev = &client->dev;
>> + struct rt9455_info *info;
>> + struct power_supply_config rt9455_charger_config = {};
>> + /* mandatory device-specific data values */
>> + u32 ichrg, ieoc_percentage, voreg;
>> + /* optional device-specific data values */
>> + u32 mivr = -1, iaicr = -1;
>> + int i, ret;
>> +
>> + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
>> + dev_err(dev, "No support for SMBUS_BYTE_DATA\n");
>> + return -ENODEV;
>> + }
>> + info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL);
>> + if (!info)
>> + return -ENOMEM;
>> +
>> + info->client = client;
>> + i2c_set_clientdata(client, info);
>> +
>> + info->regmap = devm_regmap_init_i2c(client,
>> + &rt9455_regmap_config);
>> + if (IS_ERR(info->regmap)) {
>> + dev_err(dev, "Failed to initialize register map\n");
>> + return -EINVAL;
>> + }
>> +
>> + for (i = 0; i < F_MAX_FIELDS; i++) {
>> + info->regmap_fields[i] =
>> + devm_regmap_field_alloc(dev, info->regmap,
>> + rt9455_reg_fields[i]);
>> + if (IS_ERR(info->regmap_fields[i])) {
>> + dev_err(dev,
>> + "Failed to allocate regmap field = %d\n", i);
>> + return PTR_ERR(info->regmap_fields[i]);
>> + }
>> + }
>> +
>> + ret = rt9455_discover_charger(info, &ichrg, &ieoc_percentage,
>> + &voreg, &mivr, &iaicr);
>> + if (ret) {
>> + dev_err(dev, "Failed to discover charger\n");
>> + return ret;
>> + }
>> +
>> +#if IS_ENABLED(CONFIG_USB_PHY)
>> + info->usb_phy = usb_get_phy(USB_PHY_TYPE_USB2);
> If you used devm_usb_get_phy() you wouldn't have to worry about
> releasing usb_phy(as Krzysztof suggested in the previous mail). It's up
> to you.
That's a good idea, it would simplify the exit and error paths. But
still usb_unregister_notifier() would be needed.
Best regards,
Krzysztof
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