iio: adc: nau7802: Use devm_iio_device_alloc

Using devm_iio_device_alloc makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Sachin Kamat 2013-07-23 09:58:00 +01:00 коммит произвёл Jonathan Cameron
Родитель a726dea547
Коммит ed6886c104
1 изменённых файлов: 8 добавлений и 11 удалений

Просмотреть файл

@ -404,7 +404,7 @@ static int nau7802_probe(struct i2c_client *client,
return -EINVAL;
}
indio_dev = iio_device_alloc(sizeof(*st));
indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*st));
if (indio_dev == NULL)
return -ENOMEM;
@ -423,13 +423,13 @@ static int nau7802_probe(struct i2c_client *client,
ret = i2c_smbus_write_byte_data(st->client, NAU7802_REG_PUCTRL,
NAU7802_PUCTRL_RR_BIT);
if (ret < 0)
goto error_free_indio;
return ret;
/* Enter normal operation mode */
ret = i2c_smbus_write_byte_data(st->client, NAU7802_REG_PUCTRL,
NAU7802_PUCTRL_PUD_BIT);
if (ret < 0)
goto error_free_indio;
return ret;
/*
* After about 200 usecs, the device should be ready and then
@ -438,9 +438,9 @@ static int nau7802_probe(struct i2c_client *client,
udelay(210);
ret = i2c_smbus_read_byte_data(st->client, NAU7802_REG_PUCTRL);
if (ret < 0)
goto error_free_indio;
return ret;
if (!(ret & NAU7802_PUCTRL_PUR_BIT))
goto error_free_indio;
return ret;
of_property_read_u32(np, "nuvoton,vldo", &tmp);
st->vref_mv = tmp;
@ -452,17 +452,17 @@ static int nau7802_probe(struct i2c_client *client,
ret = i2c_smbus_write_byte_data(st->client, NAU7802_REG_PUCTRL, data);
if (ret < 0)
goto error_free_indio;
return ret;
ret = i2c_smbus_write_byte_data(st->client, NAU7802_REG_ADC_CTRL, 0x30);
if (ret < 0)
goto error_free_indio;
return ret;
if (tmp >= 2400) {
data = NAU7802_CTRL1_VLDO((4500 - tmp) / 300);
ret = i2c_smbus_write_byte_data(st->client, NAU7802_REG_CTRL1,
data);
if (ret < 0)
goto error_free_indio;
return ret;
}
/* Populate available ADC input ranges */
@ -533,8 +533,6 @@ error_device_register:
error_free_irq:
if (client->irq)
free_irq(client->irq, indio_dev);
error_free_indio:
iio_device_free(indio_dev);
return ret;
}
@ -549,7 +547,6 @@ static int nau7802_remove(struct i2c_client *client)
mutex_destroy(&st->data_lock);
if (client->irq)
free_irq(client->irq, indio_dev);
iio_device_free(indio_dev);
return 0;
}