static int max77686_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct max77686_dev *max77686 = NULL;
struct max77686_platform_data *pdata = dev_get_platdata(&i2c->dev);
unsigned int data;
int ret = 0;
if (i2c->dev.of_node)
pdata = max77686_i2c_parse_dt_pdata(&i2c->dev);
if (!pdata) {
dev_err(&i2c->dev, "No platform data found.\n");
return -EIO;
}
max77686 = devm_kzalloc(&i2c->dev,
sizeof(struct max77686_dev), GFP_KERNEL);
if (max77686 == NULL)
return -ENOMEM;
i2c_set_clientdata(i2c, max77686);
max77686->dev = &i2c->dev;
max77686->i2c = i2c;
max77686->type = id->driver_data;
max77686->wakeup = pdata->wakeup;
max77686->irq_gpio = pdata->irq_gpio;
max77686->irq = i2c->irq;
max77686->regmap = devm_regmap_init_i2c(i2c, &max77686_regmap_config);
if (IS_ERR(max77686->regmap)) {
ret = PTR_ERR(max77686->regmap);
dev_err(max77686->dev, "Failed to allocate register map: %d\n",
ret);
return ret;
}
if (regmap_read(max77686->regmap,
MAX77686_REG_DEVICE_ID, &data) < 0) {
dev_err(max77686->dev,
"device not found on this channel (this is not an error)\n");
return -ENODEV;
} else
dev_info(max77686->dev, "device found\n");
max77686->rtc = i2c_new_dummy(i2c->adapter, I2C_ADDR_RTC);
i2c_set_clientdata(max77686->rtc, max77686);
max77686_irq_init(max77686);
ret = mfd_add_devices(max77686->dev, -1, max77686_devs,
ARRAY_SIZE(max77686_devs), NULL, 0, NULL);
if (ret < 0) {
mfd_remove_devices(max77686->dev);
i2c_unregister_device(max77686->rtc);
}
return ret;
}
static int max77686_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct max77686_dev *max77686;
struct max77686_platform_data *pdata = i2c->dev.platform_data;
u8 data;
int ret = 0;
max77686 = kzalloc(sizeof(struct max77686_dev), GFP_KERNEL);
if (max77686 == NULL)
return -ENOMEM;
i2c_set_clientdata(i2c, max77686);
max77686->dev = &i2c->dev;
max77686->i2c = i2c;
max77686->type = id->driver_data;
if (!pdata) {
ret = -EIO;
goto err;
}
max77686->wakeup = pdata->wakeup;
max77686->irq_gpio = pdata->irq_gpio;
max77686->irq_base = pdata->irq_base;
mutex_init(&max77686->iolock);
if (max77686_read_reg(i2c, MAX77686_REG_DEVICE_ID, &data) < 0) {
dev_err(max77686->dev,
"device not found on this channel (this is not an error)\n");
ret = -ENODEV;
goto err;
} else
dev_info(max77686->dev, "device found\n");
#ifdef CONFIG_RTC_DRV_MAX77686
max77686->rtc = i2c_new_dummy(i2c->adapter, I2C_ADDR_RTC);
i2c_set_clientdata(max77686->rtc, max77686);
#endif
max77686_irq_init(max77686);
ret = mfd_add_devices(max77686->dev, -1, max77686_devs,
ARRAY_SIZE(max77686_devs), NULL, 0);
if (ret < 0)
goto err_mfd;
device_init_wakeup(max77686->dev, pdata->wakeup);
return ret;
err_mfd:
mfd_remove_devices(max77686->dev);
#ifdef CONFIG_RTC_DRV_MAX77686
i2c_unregister_device(max77686->rtc);
#endif
err:
kfree(max77686);
return ret;
}