Beispiel #1
0
static int s5m87xx_i2c_probe(struct i2c_client *i2c,
			    const struct i2c_device_id *id)
{
	struct s5m_platform_data *pdata = i2c->dev.platform_data;
	struct s5m87xx_dev *s5m87xx;
	int ret = 0;

	if (!pdata)
		return -EINVAL;

	s5m87xx = kzalloc(sizeof(struct s5m87xx_dev), GFP_KERNEL);
	if (s5m87xx == NULL)
		return -ENOMEM;

	i2c_set_clientdata(i2c, s5m87xx);
	s5m87xx->dev = &i2c->dev;
	s5m87xx->i2c = i2c;
	s5m87xx->irq = gpio_to_irq(pdata->irq_gpio);
	s5m87xx->type = id->driver_data;

	if (pdata) {
		s5m87xx->device_type = pdata->device_type;
		s5m87xx->ono = pdata->ono;
		s5m87xx->irq_base = pdata->irq_base;
		s5m87xx->wakeup = pdata->wakeup;
	}

	mutex_init(&s5m87xx->iolock);

	s5m87xx->rtc = i2c_new_dummy(i2c->adapter, RTC_I2C_ADDR);
	i2c_set_clientdata(s5m87xx->rtc, s5m87xx);

	if (pdata && pdata->cfg_pmic_irq)
		pdata->cfg_pmic_irq();

	s5m_irq_init(s5m87xx);

	pm_runtime_set_active(s5m87xx->dev);

	ret = mfd_add_devices(s5m87xx->dev, -1,
				s5m87xx_devs, ARRAY_SIZE(s5m87xx_devs),
				NULL, 0);

	if (ret < 0)
		goto err;

	dev_info(s5m87xx->dev ,"S5M87xx MFD probe done!!! \n");
	return ret;

err:
	mfd_remove_devices(s5m87xx->dev);
	s5m_irq_exit(s5m87xx);
	i2c_unregister_device(s5m87xx->rtc);
	kfree(s5m87xx);
	return ret;
}
static int s5m87xx_i2c_remove(struct i2c_client *i2c)
{
	struct s5m87xx_dev *s5m87xx = i2c_get_clientdata(i2c);

	mfd_remove_devices(s5m87xx->dev);
	s5m_irq_exit(s5m87xx);
	i2c_unregister_device(s5m87xx->rtc);
	regmap_exit(s5m87xx->regmap);
	return 0;
}
static int s5m87xx_i2c_probe(struct i2c_client *i2c,
			    const struct i2c_device_id *id)
{
	struct s5m_platform_data *pdata = i2c->dev.platform_data;
	struct s5m87xx_dev *s5m87xx;
	int ret;

	s5m87xx = devm_kzalloc(&i2c->dev, sizeof(struct s5m87xx_dev),
				GFP_KERNEL);
	if (s5m87xx == NULL)
		return -ENOMEM;

	i2c_set_clientdata(i2c, s5m87xx);
	s5m87xx->dev = &i2c->dev;
	s5m87xx->i2c = i2c;
	s5m87xx->irq = i2c->irq;
	s5m87xx->type = id->driver_data;

	if (pdata) {
		s5m87xx->device_type = pdata->device_type;
		s5m87xx->ono = pdata->ono;
		s5m87xx->irq_base = pdata->irq_base;
		s5m87xx->wakeup = pdata->wakeup;
	}

	s5m87xx->regmap = regmap_init_i2c(i2c, &s5m_regmap_config);
	if (IS_ERR(s5m87xx->regmap)) {
		ret = PTR_ERR(s5m87xx->regmap);
		dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
			ret);
		goto err;
	}

	s5m87xx->rtc = i2c_new_dummy(i2c->adapter, RTC_I2C_ADDR);
	i2c_set_clientdata(s5m87xx->rtc, s5m87xx);

	if (pdata && pdata->cfg_pmic_irq)
		pdata->cfg_pmic_irq();

	s5m_irq_init(s5m87xx);

	pm_runtime_set_active(s5m87xx->dev);

	switch (s5m87xx->device_type) {
	case S5M8751X:
		ret = mfd_add_devices(s5m87xx->dev, -1, s5m8751_devs,
					ARRAY_SIZE(s5m8751_devs), NULL, 0);
		break;
	case S5M8763X:
		ret = mfd_add_devices(s5m87xx->dev, -1, s5m8763_devs,
					ARRAY_SIZE(s5m8763_devs), NULL, 0);
		break;
	case S5M8767X:
		ret = mfd_add_devices(s5m87xx->dev, -1, s5m8767_devs,
					ARRAY_SIZE(s5m8767_devs), NULL, 0);
		break;
	default:
		/* If this happens the probe function is problem */
		BUG();
	}

	if (ret < 0)
		goto err;

	return ret;

err:
	mfd_remove_devices(s5m87xx->dev);
	s5m_irq_exit(s5m87xx);
	i2c_unregister_device(s5m87xx->rtc);
	regmap_exit(s5m87xx->regmap);
	return ret;
}