diff options
Diffstat (limited to 'drivers/iio/adc/max1363.c')
| -rw-r--r-- | drivers/iio/adc/max1363.c | 52 |
1 files changed, 47 insertions, 5 deletions
diff --git a/drivers/iio/adc/max1363.c b/drivers/iio/adc/max1363.c index aac572290cb..eba1034d860 100644 --- a/drivers/iio/adc/max1363.c +++ b/drivers/iio/adc/max1363.c @@ -1403,7 +1403,7 @@ static int max1363_initial_setup(struct max1363_state *st) return max1363_set_scan_mode(st); } -static int __devinit max1363_alloc_scan_masks(struct iio_dev *indio_dev) +static int max1363_alloc_scan_masks(struct iio_dev *indio_dev) { struct max1363_state *st = iio_priv(indio_dev); unsigned long *masks; @@ -1483,8 +1483,50 @@ static const struct iio_buffer_setup_ops max1363_buffered_setup_ops = { .predisable = &iio_triggered_buffer_predisable, }; -static int __devinit max1363_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static int max1363_register_buffered_funcs_and_init(struct iio_dev *indio_dev) +{ + struct max1363_state *st = iio_priv(indio_dev); + int ret = 0; + + indio_dev->buffer = iio_kfifo_allocate(indio_dev); + if (!indio_dev->buffer) { + ret = -ENOMEM; + goto error_ret; + } + indio_dev->pollfunc = iio_alloc_pollfunc(NULL, + &max1363_trigger_handler, + IRQF_ONESHOT, + indio_dev, + "%s_consumer%d", + st->client->name, + indio_dev->id); + if (indio_dev->pollfunc == NULL) { + ret = -ENOMEM; + goto error_deallocate_sw_rb; + } + /* Buffer functions - here trigger setup related */ + indio_dev->setup_ops = &max1363_buffered_setup_ops; + + /* Flag that polled buffering is possible */ + indio_dev->modes |= INDIO_BUFFER_TRIGGERED; + + return 0; + +error_deallocate_sw_rb: + iio_kfifo_free(indio_dev->buffer); +error_ret: + return ret; +} + +static void max1363_buffer_cleanup(struct iio_dev *indio_dev) +{ + /* ensure that the trigger has been detached */ + iio_dealloc_pollfunc(indio_dev->pollfunc); + iio_kfifo_free(indio_dev->buffer); +} + +static int max1363_probe(struct i2c_client *client, + const struct i2c_device_id *id) { int ret; struct max1363_state *st; @@ -1576,7 +1618,7 @@ error_out: return ret; } -static int __devexit max1363_remove(struct i2c_client *client) +static int max1363_remove(struct i2c_client *client) { struct iio_dev *indio_dev = i2c_get_clientdata(client); struct max1363_state *st = iio_priv(indio_dev); @@ -1639,7 +1681,7 @@ static struct i2c_driver max1363_driver = { .name = "max1363", }, .probe = max1363_probe, - .remove = __devexit_p(max1363_remove), + .remove = max1363_remove, .id_table = max1363_id, }; module_i2c_driver(max1363_driver); |