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authorSachin Kamat <sachin.kamat@linaro.org>2013-10-29 12:39:00 +0100
committerJonathan Cameron <jic23@kernel.org>2013-11-24 22:07:11 +0100
commita7e57dce02ceb8212f106191fdfbc0fcb61ce9e0 (patch)
treeb3527156948f0a208869dfdf31a890ebfcc4261a /drivers
parentiio: core: Implement devm_iio_device_{register,unregister} (diff)
downloadlinux-a7e57dce02ceb8212f106191fdfbc0fcb61ce9e0.tar.xz
linux-a7e57dce02ceb8212f106191fdfbc0fcb61ce9e0.zip
iio: core: Move kernel doc to the right location
Documentation related to function should be placed above its implementation. Move it accordingly. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/iio/industrialio-core.c42
-rw-r--r--drivers/iio/industrialio-event.c6
-rw-r--r--drivers/iio/industrialio-trigger.c24
3 files changed, 72 insertions, 0 deletions
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 1c280b50c74b..2fe88c189f74 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -107,6 +107,11 @@ static const char * const iio_chan_info_postfix[] = {
[IIO_CHAN_INFO_INT_TIME] = "integration_time",
};
+/**
+ * iio_find_channel_from_si() - get channel from its scan index
+ * @indio_dev: device
+ * @si: scan index to match
+ */
const struct iio_chan_spec
*iio_find_channel_from_si(struct iio_dev *indio_dev, int si)
{
@@ -922,6 +927,10 @@ struct device_type iio_device_type = {
.release = iio_dev_release,
};
+/**
+ * iio_device_alloc() - allocate an iio_dev from a driver
+ * @sizeof_priv: Space to allocate for private structure.
+ **/
struct iio_dev *iio_device_alloc(int sizeof_priv)
{
struct iio_dev *dev;
@@ -962,6 +971,10 @@ struct iio_dev *iio_device_alloc(int sizeof_priv)
}
EXPORT_SYMBOL(iio_device_alloc);
+/**
+ * iio_device_free() - free an iio_dev from a driver
+ * @dev: the iio_dev associated with the device
+ **/
void iio_device_free(struct iio_dev *dev)
{
if (dev)
@@ -984,6 +997,20 @@ static int devm_iio_device_match(struct device *dev, void *res, void *data)
return *r == data;
}
+/**
+ * devm_iio_device_alloc - Resource-managed iio_device_alloc()
+ * @dev: Device to allocate iio_dev for
+ * @sizeof_priv: Space to allocate for private structure.
+ *
+ * Managed iio_device_alloc. iio_dev allocated with this function is
+ * automatically freed on driver detach.
+ *
+ * If an iio_dev allocated with this function needs to be freed separately,
+ * devm_iio_device_free() must be used.
+ *
+ * RETURNS:
+ * Pointer to allocated iio_dev on success, NULL on failure.
+ */
struct iio_dev *devm_iio_device_alloc(struct device *dev, int sizeof_priv)
{
struct iio_dev **ptr, *iio_dev;
@@ -1006,6 +1033,13 @@ struct iio_dev *devm_iio_device_alloc(struct device *dev, int sizeof_priv)
}
EXPORT_SYMBOL_GPL(devm_iio_device_alloc);
+/**
+ * devm_iio_device_free - Resource-managed iio_device_free()
+ * @dev: Device this iio_dev belongs to
+ * @iio_dev: the iio_dev associated with the device
+ *
+ * Free iio_dev allocated with devm_iio_device_alloc().
+ */
void devm_iio_device_free(struct device *dev, struct iio_dev *iio_dev)
{
int rc;
@@ -1080,6 +1114,10 @@ static const struct file_operations iio_buffer_fileops = {
static const struct iio_buffer_setup_ops noop_ring_setup_ops;
+/**
+ * iio_device_register() - register a device with the IIO subsystem
+ * @indio_dev: Device structure filled by the device driver
+ **/
int iio_device_register(struct iio_dev *indio_dev)
{
int ret;
@@ -1141,6 +1179,10 @@ error_ret:
}
EXPORT_SYMBOL(iio_device_register);
+/**
+ * iio_device_unregister() - unregister a device from the IIO subsystem
+ * @indio_dev: Device structure representing the device.
+ **/
void iio_device_unregister(struct iio_dev *indio_dev)
{
mutex_lock(&indio_dev->info_exist_lock);
diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index dac15b9f9df8..32b2c2d8d237 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -42,6 +42,12 @@ struct iio_event_interface {
struct attribute_group group;
};
+/**
+ * iio_push_event() - try to add event to the list for userspace reading
+ * @indio_dev: IIO device structure
+ * @ev_code: What event
+ * @timestamp: When the event occurred
+ **/
int iio_push_event(struct iio_dev *indio_dev, u64 ev_code, s64 timestamp)
{
struct iio_event_interface *ev_int = indio_dev->event_interface;
diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c
index bf5e70a32d3f..8bd092b9327e 100644
--- a/drivers/iio/industrialio-trigger.c
+++ b/drivers/iio/industrialio-trigger.c
@@ -506,6 +506,23 @@ static int devm_iio_trigger_match(struct device *dev, void *res, void *data)
return *r == data;
}
+/**
+ * devm_iio_trigger_alloc - Resource-managed iio_trigger_alloc()
+ * @dev: Device to allocate iio_trigger for
+ * @fmt: trigger name format. If it includes format
+ * specifiers, the additional arguments following
+ * format are formatted and inserted in the resulting
+ * string replacing their respective specifiers.
+ *
+ * Managed iio_trigger_alloc. iio_trigger allocated with this function is
+ * automatically freed on driver detach.
+ *
+ * If an iio_trigger allocated with this function needs to be freed separately,
+ * devm_iio_trigger_free() must be used.
+ *
+ * RETURNS:
+ * Pointer to allocated iio_trigger on success, NULL on failure.
+ */
struct iio_trigger *devm_iio_trigger_alloc(struct device *dev,
const char *fmt, ...)
{
@@ -532,6 +549,13 @@ struct iio_trigger *devm_iio_trigger_alloc(struct device *dev,
}
EXPORT_SYMBOL_GPL(devm_iio_trigger_alloc);
+/**
+ * devm_iio_trigger_free - Resource-managed iio_trigger_free()
+ * @dev: Device this iio_dev belongs to
+ * @iio_trig: the iio_trigger associated with the device
+ *
+ * Free iio_trigger allocated with devm_iio_trigger_alloc().
+ */
void devm_iio_trigger_free(struct device *dev, struct iio_trigger *iio_trig)
{
int rc;