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iio:bma180: Enable use of device without IRQ 

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Cc: Oleksandr Kravchenko <o.v.kravchenko@globallogic.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Peter Meerwald 2014-08-19 23:43:00 +01:00 committed by Jonathan Cameron
parent 3a0888edcf
commit 16ed8692fa
1 changed files with 31 additions and 27 deletions
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58
drivers/iio/accel/bma180.c
View File

@ -529,7 +529,6 @@ static int bma180_probe(struct i2c_client *client,
{
struct bma180_data *data;
struct iio_dev *indio_dev;
struct iio_trigger *trig;
int ret;
indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
@ -553,30 +552,32 @@ static int bma180_probe(struct i2c_client *client,
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->info = &bma180_info;
trig = iio_trigger_alloc("%s-dev%d", indio_dev->name, indio_dev->id);
if (!trig) {
ret = -ENOMEM;
goto err_chip_disable;
if (client->irq > 0) {
data->trig = iio_trigger_alloc("%s-dev%d", indio_dev->name,
indio_dev->id);
if (!data->trig) {
ret = -ENOMEM;
goto err_chip_disable;
}
ret = devm_request_irq(&client->dev, client->irq,
iio_trigger_generic_data_rdy_poll, IRQF_TRIGGER_RISING,
BMA180_IRQ_NAME, data->trig);
if (ret) {
dev_err(&client->dev, "unable to request IRQ\n");
goto err_trigger_free;
}
data->trig->dev.parent = &client->dev;
data->trig->ops = &bma180_trigger_ops;
iio_trigger_set_drvdata(data->trig, indio_dev);
indio_dev->trig = data->trig;
ret = iio_trigger_register(data->trig);
if (ret)
goto err_trigger_free;
}
ret = devm_request_irq(&client->dev, client->irq,
iio_trigger_generic_data_rdy_poll,
IRQF_TRIGGER_RISING, BMA180_IRQ_NAME, trig);
if (ret) {
dev_err(&client->dev, "unable to request IRQ\n");
goto err_trigger_free;
}
trig->dev.parent = &client->dev;
trig->ops = &bma180_trigger_ops;
iio_trigger_set_drvdata(trig, indio_dev);
data->trig = trig;
indio_dev->trig = trig;
ret = iio_trigger_register(trig);
if (ret)
goto err_trigger_free;
ret = iio_triggered_buffer_setup(indio_dev, NULL,
bma180_trigger_handler, NULL);
if (ret < 0) {
@ -595,9 +596,10 @@ static int bma180_probe(struct i2c_client *client,
err_buffer_cleanup:
iio_triggered_buffer_cleanup(indio_dev);
err_trigger_unregister:
iio_trigger_unregister(trig);
if (data->trig)
iio_trigger_unregister(data->trig);
err_trigger_free:
iio_trigger_free(trig);
iio_trigger_free(data->trig);
err_chip_disable:
bma180_chip_disable(data);
@ -611,8 +613,10 @@ static int bma180_remove(struct i2c_client *client)
iio_device_unregister(indio_dev);
iio_triggered_buffer_cleanup(indio_dev);
iio_trigger_unregister(data->trig);
iio_trigger_free(data->trig);
if (data->trig) {
iio_trigger_unregister(data->trig);
iio_trigger_free(data->trig);
}
mutex_lock(&data->mutex);
bma180_chip_disable(data);