| Message ID | 20190323172809.14407-1-contact@artur-rojek.eu (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v2,1/4] iio: inkern: API for reading available iio channel attribute values | expand |
On Sat, 23 Mar 2019 18:28:06 +0100 Artur Rojek <contact@artur-rojek.eu> wrote: > Extend the inkern API with a function for reading available > attribute values of iio channels. > > Signed-off-by: Artur Rojek <contact@artur-rojek.eu> If this goes through a route other than IIO (otherwise I'll just add a signed-off-by...) Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> > --- > > Changes: > > v2: no change > > drivers/iio/inkern.c | 20 ++++++++++++++++++++ > include/linux/iio/consumer.h | 14 ++++++++++++++ > 2 files changed, 34 insertions(+) > > diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c > index 06ca3f7fcc44..f19dbde3c945 100644 > --- a/drivers/iio/inkern.c > +++ b/drivers/iio/inkern.c > @@ -733,6 +733,26 @@ static int iio_channel_read_avail(struct iio_channel *chan, > vals, type, length, info); > } > > +int iio_read_avail_channel_attribute(struct iio_channel *chan, > + const int **vals, int *type, int *length, > + enum iio_chan_info_enum attribute) > +{ > + int ret; > + > + mutex_lock(&chan->indio_dev->info_exist_lock); > + if (!chan->indio_dev->info) { > + ret = -ENODEV; > + goto err_unlock; > + } > + > + ret = iio_channel_read_avail(chan, vals, type, length, attribute); > +err_unlock: > + mutex_unlock(&chan->indio_dev->info_exist_lock); > + > + return ret; > +} > +EXPORT_SYMBOL_GPL(iio_read_avail_channel_attribute); > + > int iio_read_avail_channel_raw(struct iio_channel *chan, > const int **vals, int *length) > { > diff --git a/include/linux/iio/consumer.h b/include/linux/iio/consumer.h > index 9887f4f8e2a8..b2d34831ed7c 100644 > --- a/include/linux/iio/consumer.h > +++ b/include/linux/iio/consumer.h > @@ -290,6 +290,20 @@ int iio_read_max_channel_raw(struct iio_channel *chan, int *val); > int iio_read_avail_channel_raw(struct iio_channel *chan, > const int **vals, int *length); > > +/** > + * iio_read_avail_channel_attribute() - read available channel attribute values > + * @chan: The channel being queried. > + * @vals: Available values read back. > + * @type: Type of values read back. > + * @length: Number of entries in vals. > + * @attribute: info attribute to be read back. > + * > + * Returns an error code, IIO_AVAIL_RANGE or IIO_AVAIL_LIST. > + */ > +int iio_read_avail_channel_attribute(struct iio_channel *chan, > + const int **vals, int *type, int *length, > + enum iio_chan_info_enum attribute); > + > /** > * iio_get_channel_type() - get the type of a channel > * @channel: The channel being queried.
On Sun, 24 Mar 2019 15:27:25 +0000 Jonathan Cameron <jic23@kernel.org> wrote: > On Sat, 23 Mar 2019 18:28:06 +0100 > Artur Rojek <contact@artur-rojek.eu> wrote: > > > Extend the inkern API with a function for reading available > > attribute values of iio channels. > > > > Signed-off-by: Artur Rojek <contact@artur-rojek.eu> > If this goes through a route other than IIO (otherwise > I'll just add a signed-off-by...) > > Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Applied to the ib-jz47xx-prereq branch of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git I'll merge that into the togreg branch as well shortly. Thanks, Jonathan > > > --- > > > > Changes: > > > > v2: no change > > > > drivers/iio/inkern.c | 20 ++++++++++++++++++++ > > include/linux/iio/consumer.h | 14 ++++++++++++++ > > 2 files changed, 34 insertions(+) > > > > diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c > > index 06ca3f7fcc44..f19dbde3c945 100644 > > --- a/drivers/iio/inkern.c > > +++ b/drivers/iio/inkern.c > > @@ -733,6 +733,26 @@ static int iio_channel_read_avail(struct iio_channel *chan, > > vals, type, length, info); > > } > > > > +int iio_read_avail_channel_attribute(struct iio_channel *chan, > > + const int **vals, int *type, int *length, > > + enum iio_chan_info_enum attribute) > > +{ > > + int ret; > > + > > + mutex_lock(&chan->indio_dev->info_exist_lock); > > + if (!chan->indio_dev->info) { > > + ret = -ENODEV; > > + goto err_unlock; > > + } > > + > > + ret = iio_channel_read_avail(chan, vals, type, length, attribute); > > +err_unlock: > > + mutex_unlock(&chan->indio_dev->info_exist_lock); > > + > > + return ret; > > +} > > +EXPORT_SYMBOL_GPL(iio_read_avail_channel_attribute); > > + > > int iio_read_avail_channel_raw(struct iio_channel *chan, > > const int **vals, int *length) > > { > > diff --git a/include/linux/iio/consumer.h b/include/linux/iio/consumer.h > > index 9887f4f8e2a8..b2d34831ed7c 100644 > > --- a/include/linux/iio/consumer.h > > +++ b/include/linux/iio/consumer.h > > @@ -290,6 +290,20 @@ int iio_read_max_channel_raw(struct iio_channel *chan, int *val); > > int iio_read_avail_channel_raw(struct iio_channel *chan, > > const int **vals, int *length); > > > > +/** > > + * iio_read_avail_channel_attribute() - read available channel attribute values > > + * @chan: The channel being queried. > > + * @vals: Available values read back. > > + * @type: Type of values read back. > > + * @length: Number of entries in vals. > > + * @attribute: info attribute to be read back. > > + * > > + * Returns an error code, IIO_AVAIL_RANGE or IIO_AVAIL_LIST. > > + */ > > +int iio_read_avail_channel_attribute(struct iio_channel *chan, > > + const int **vals, int *type, int *length, > > + enum iio_chan_info_enum attribute); > > + > > /** > > * iio_get_channel_type() - get the type of a channel > > * @channel: The channel being queried. >
Hi, On Sun, Apr 14, 2019 at 11:34:54AM +0100, Jonathan Cameron wrote: > On Sun, 24 Mar 2019 15:27:25 +0000 > Jonathan Cameron <jic23@kernel.org> wrote: > > > On Sat, 23 Mar 2019 18:28:06 +0100 > > Artur Rojek <contact@artur-rojek.eu> wrote: > > > > > Extend the inkern API with a function for reading available > > > attribute values of iio channels. > > > > > > Signed-off-by: Artur Rojek <contact@artur-rojek.eu> > > If this goes through a route other than IIO (otherwise > > I'll just add a signed-off-by...) > > > > Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> > > Applied to the ib-jz47xx-prereq branch of > git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git > > I'll merge that into the togreg branch as well shortly. Thanks, I pulled that branch into power-supply next for the other two patches. -- Sebastian
diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c index 06ca3f7fcc44..f19dbde3c945 100644 --- a/drivers/iio/inkern.c +++ b/drivers/iio/inkern.c @@ -733,6 +733,26 @@ static int iio_channel_read_avail(struct iio_channel *chan, vals, type, length, info); } +int iio_read_avail_channel_attribute(struct iio_channel *chan, + const int **vals, int *type, int *length, + enum iio_chan_info_enum attribute) +{ + int ret; + + mutex_lock(&chan->indio_dev->info_exist_lock); + if (!chan->indio_dev->info) { + ret = -ENODEV; + goto err_unlock; + } + + ret = iio_channel_read_avail(chan, vals, type, length, attribute); +err_unlock: + mutex_unlock(&chan->indio_dev->info_exist_lock); + + return ret; +} +EXPORT_SYMBOL_GPL(iio_read_avail_channel_attribute); + int iio_read_avail_channel_raw(struct iio_channel *chan, const int **vals, int *length) { diff --git a/include/linux/iio/consumer.h b/include/linux/iio/consumer.h index 9887f4f8e2a8..b2d34831ed7c 100644 --- a/include/linux/iio/consumer.h +++ b/include/linux/iio/consumer.h @@ -290,6 +290,20 @@ int iio_read_max_channel_raw(struct iio_channel *chan, int *val); int iio_read_avail_channel_raw(struct iio_channel *chan, const int **vals, int *length); +/** + * iio_read_avail_channel_attribute() - read available channel attribute values + * @chan: The channel being queried. + * @vals: Available values read back. + * @type: Type of values read back. + * @length: Number of entries in vals. + * @attribute: info attribute to be read back. + * + * Returns an error code, IIO_AVAIL_RANGE or IIO_AVAIL_LIST. + */ +int iio_read_avail_channel_attribute(struct iio_channel *chan, + const int **vals, int *type, int *length, + enum iio_chan_info_enum attribute); + /** * iio_get_channel_type() - get the type of a channel * @channel: The channel being queried.
Extend the inkern API with a function for reading available attribute values of iio channels. Signed-off-by: Artur Rojek <contact@artur-rojek.eu> --- Changes: v2: no change drivers/iio/inkern.c | 20 ++++++++++++++++++++ include/linux/iio/consumer.h | 14 ++++++++++++++ 2 files changed, 34 insertions(+)