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authorPeter Meerwald <pmeerw@pmeerw.net>2012-12-31 03:26:00 +0400
committerJonathan Cameron <jic23@kernel.org>2013-01-01 21:38:30 +0400
commit4389fbec5b8fd0577c1e854ff5d7139329558c20 (patch)
tree49e1d7cd29c43a6ec3e23bc0f150be36ff3a2fb6 /drivers/iio/adc/max1363.c
parent99e02018df52e9bf723ea3f0c18cf412c7e75108 (diff)
downloadlinux-4389fbec5b8fd0577c1e854ff5d7139329558c20.tar.xz
iio: cleanup buffer setup code in max1363 driver
use iio_triggered_buffer_setup(), iio_triggered_buffer_cleanup() Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/adc/max1363.c')
-rw-r--r--drivers/iio/adc/max1363.c59
1 files changed, 5 insertions, 54 deletions
diff --git a/drivers/iio/adc/max1363.c b/drivers/iio/adc/max1363.c
index 1e84b5b55093..46d8365dd348 100644
--- a/drivers/iio/adc/max1363.c
+++ b/drivers/iio/adc/max1363.c
@@ -39,6 +39,7 @@
#include <linux/iio/driver.h>
#include <linux/iio/kfifo_buf.h>
#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
#define MAX1363_SETUP_BYTE(a) ((a) | 0x80)
@@ -1483,48 +1484,6 @@ static const struct iio_buffer_setup_ops max1363_buffered_setup_ops = {
.predisable = &iio_triggered_buffer_predisable,
};
-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 __devinit max1363_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -1577,16 +1536,11 @@ static int __devinit max1363_probe(struct i2c_client *client,
if (ret < 0)
goto error_free_available_scan_masks;
- ret = max1363_register_buffered_funcs_and_init(indio_dev);
+ ret = iio_triggered_buffer_setup(indio_dev, NULL,
+ &max1363_trigger_handler, &max1363_buffered_setup_ops);
if (ret)
goto error_free_available_scan_masks;
- ret = iio_buffer_register(indio_dev,
- st->chip_info->channels,
- st->chip_info->num_channels);
- if (ret)
- goto error_cleanup_buffer;
-
if (client->irq) {
ret = request_threaded_irq(st->client->irq,
NULL,
@@ -1607,9 +1561,7 @@ static int __devinit max1363_probe(struct i2c_client *client,
error_free_irq:
free_irq(st->client->irq, indio_dev);
error_uninit_buffer:
- iio_buffer_unregister(indio_dev);
-error_cleanup_buffer:
- max1363_buffer_cleanup(indio_dev);
+ iio_triggered_buffer_cleanup(indio_dev);
error_free_available_scan_masks:
kfree(indio_dev->available_scan_masks);
error_unregister_map:
@@ -1632,8 +1584,7 @@ static int __devexit max1363_remove(struct i2c_client *client)
iio_device_unregister(indio_dev);
if (client->irq)
free_irq(st->client->irq, indio_dev);
- iio_buffer_unregister(indio_dev);
- max1363_buffer_cleanup(indio_dev);
+ iio_triggered_buffer_cleanup(indio_dev);
kfree(indio_dev->available_scan_masks);
if (!IS_ERR(st->reg)) {
regulator_disable(st->reg);