Beispiel #1
0
static int smb136_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
	struct smb136_chg_data *chg;
	int ret = 0;

	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE))
		return -EIO;

	pr_info("%s : SMB136 Charger Driver Loading\n", __func__);

	chg = kzalloc(sizeof(struct smb136_chg_data), GFP_KERNEL);
	if (!chg)
		return -ENOMEM;

	chg->client = client;
	chg->pdata = client->dev.platform_data;
	chg->chgdev = chg->pdata->chgdev;

	i2c_set_clientdata(client, chg);
	smb136_chg = chg;  // set local

	printk("Smb136 charger attach success!!!\n");

	// Check whether battery already full charged or not.
	if(smb136_get_charging_status()==CHARGING_STATUS_FULL)
		chg->chgdev->set_charging_status(CHARGING_STATUS_FULL);


	if (!chg->pdata) {
		pr_err("%s : No platform data supplied\n", __func__);
		ret = -EINVAL;
		goto err_pdata;
	}

	chg->chgdev->charging_control = smb136_charging;
	chg->chgdev->get_connection_status = NULL;
	chg->chgdev->get_charging_status = smb136_get_charging_status;
	if(chg->pdata && chg->pdata->charger_dev_register)
		chg->pdata->charger_dev_register(chg->chgdev);

	charger_i2c_init = 1;

	ret = smb136_irq_init(chg);
	if (ret)
		goto err_pdata;

	if (device_create_file(&client->dev, &dev_attr_command) < 0)
		printk("Failed to create device file(%s)!\n", dev_attr_command.attr.name);
	
	smb136_test_read();
	
	return 0;

err_pdata:
	kfree(chg);
	return ret;
}
Beispiel #2
0
static int smb136_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
	struct smb136_chip *chip;
	int ret = 0;
	int gpio = 0;
	u8 data;

	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE))
		return -EIO;

	if (smb136_i2c_read(client, 0x36, &data)<0)	/* check HW */
		return -EIO;

	dev_info(&client->dev, "%s : SMB136 Charger Driver Loading\n", __func__);

	chip = kzalloc(sizeof(struct smb136_chip), GFP_KERNEL);
	if (!chip)
		return -ENOMEM;

	chip->client = client;
	chip->pdata = client->dev.platform_data;

	i2c_set_clientdata(client, chip);

	if (!chip->pdata) {
		dev_err(&client->dev, "%s : No platform data supplied\n", __func__);
		ret = -EINVAL;
		goto err_pdata;
	}

	if (chip->pdata->set_charger_name)
		chip->pdata->set_charger_name();

	chip->is_enable = false;
	chip->cable_type = CABLE_TYPE_NONE;

	chip->charger.name		= "smb136-charger";
	chip->charger.type		= POWER_SUPPLY_TYPE_BATTERY;
	chip->charger.get_property	= smb136_get_property;
	chip->charger.set_property	= smb136_set_property;
	chip->charger.properties	= smb136_charger_props;
	chip->charger.num_properties	= ARRAY_SIZE(smb136_charger_props);

	ret = power_supply_register(&client->dev, &chip->charger);
	if (ret) {
		dev_err(&client->dev, "failed: power supply register\n");
		kfree(chip);
		return ret;
	}

	
	/* CHG_EN pin control - active low */
	if (chip->pdata->gpio_chg_en) {
		s3c_gpio_cfgpin(chip->pdata->gpio_chg_en, S3C_GPIO_OUTPUT);
		s3c_gpio_setpull(chip->pdata->gpio_chg_en, S3C_GPIO_PULL_NONE);

		gpio = gpio_request(chip->pdata->gpio_chg_en, "CHG_EN");
		if (!gpio) {
			gpio_direction_output(chip->pdata->gpio_chg_en, GPIO_LEVEL_HIGH);
			gpio_free(chip->pdata->gpio_chg_en);
		} else
			dev_err(&client->dev,
			"faile to request gpio(CHG_EN)\n");
	}

	if (chip->pdata->gpio_otg_en) {
		s3c_gpio_cfgpin(chip->pdata->gpio_otg_en, S3C_GPIO_OUTPUT);
		s3c_gpio_setpull(chip->pdata->gpio_otg_en, S3C_GPIO_PULL_NONE);

		gpio = gpio_request(chip->pdata->gpio_otg_en, "OTG_EN");
		if (!gpio) {
			gpio_direction_output(chip->pdata->gpio_otg_en, GPIO_LEVEL_LOW);
			gpio_free(chip->pdata->gpio_otg_en);
		} else
			dev_err(&client->dev,
			"faile to request gpio(OTG_EN)\n");
	}

	if (chip->pdata->gpio_ta_nconnected) {
		s3c_gpio_cfgpin(chip->pdata->gpio_ta_nconnected, S3C_GPIO_INPUT);
		s3c_gpio_setpull(chip->pdata->gpio_ta_nconnected, S3C_GPIO_PULL_NONE);
	}

	if (chip->pdata->gpio_chg_ing) {
#if 1
#if defined (CONFIG_MACH_Q1_CHN) && defined (CONFIG_SMB136_CHARGER)
		s3c_gpio_cfgpin(chip->pdata->gpio_chg_ing, S3C_GPIO_SFN(0xf));
#endif
		client->irq = gpio_to_irq(chip->pdata->gpio_chg_ing);
		ret = smb136_irq_init(chip);
		if (ret)
			goto err_pdata;
#else
		s3c_gpio_cfgpin(chip->pdata->gpio_chg_ing, S3C_GPIO_INPUT);
		s3c_gpio_setpull(chip->pdata->gpio_chg_ing, S3C_GPIO_PULL_NONE);
#endif
	}

	smb136_test_read(client);

	return 0;

err_pdata:
	kfree(chip);
	return ret;
}