History log of /drivers/staging/iio/trigger/iio-trig-bfin-timer.c
Revision Date Author Comments
f64c3052b62ca6684f43f923dcc19fefcc8606c2 07-Jan-2014 Himangi Saraogi <himangi774@gmail.com> iio:trigger: Introduce the use of devm_kzalloc

This patch introduces the use of the managed version of kzalloc and
removes the kfrees in the probe and remove functions. More return
paths are added and the labels are renamed to order them.

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
398fd22b6b94cb15c1c299bceecd63644a1b17b4 06-Dec-2014 Peter Meerwald <pmeerw@pmeerw.net> iio: Remove timestamp argument from iio_trigger_poll() and iio_trigger_poll_chained()

argument has been ignored; adjust drivers accordingly

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
85528e881dc35662b53d79fc1b56526c8c794d26 27-Sep-2013 Lars-Peter Clausen <lars@metafoo.de> staging:iio:iio-trig-bfin-timer: Fix compile error

This patch fixes the following compile errors for the iio-trig-bfin-timer
driver:
drivers/staging/iio/trigger/iio-trig-bfin-timer.c: In function ‘iio_bfin_tmr_frequency_store’:
drivers/staging/iio/trigger/iio-trig-bfin-timer.c:121: error: invalid storage class for function ‘iio_bfin_tmr_frequency_show’
drivers/staging/iio/trigger/iio-trig-bfin-timer.c:118: warning: ISO C90 forbids mixed declarations and code
drivers/staging/iio/trigger/iio-trig-bfin-timer.c:135: error: initializer element is not constant
...

The issue was introduced in commit e5e26dd5 ("staging: iio: replace
strict_strto*() with kstrto*()") by leaving an excess opening bracket.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
e5e26dd5bb740c34c975e2ae059126ba3486a1ce 20-Aug-2013 Jingoo Han <jg1.han@samsung.com> staging: iio: replace strict_strto*() with kstrto*()

The usage of strict_strto*() is not preferred, because
strict_strto*() is obsolete. Thus, kstrto*() should be
used.

Previously, there were only strict_strtol(), strict_strtoul(),
strict_strtoull(), and strict_strtoll(). Thus, when converting
to the variables, only long, unsigned long, unsigned long long,
and long long can be used.

However, kstrto*() provides various functions handling all types
of variables. Therefore, the types of variables can be changed
properly.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
1e9663c62b32f695af37fec4afc473b59f5ca9b4 25-Mar-2013 Lars-Peter Clausen <lars@metafoo.de> iio:trigger: Introduce iio_tigger_{set,get}_drvdata

Introduce iio_tigger_{set,get}_drvdata which allows to attach driver specific
data to a trigger. The functions wrap access to the triggers private_data field
and all current users are updated to use iio_tigger_{set,get}_drvdata instead of
directly accessing the private_data field. This is the first step towards
removing the private_data field from the iio_trigger struct.

The following coccinelle script has been used to update the drivers:
<smpl>
@@
struct iio_trigger *trigger;
expression priv;
@@
-trigger->private_data = priv
+iio_trigger_set_drv_data(trigger, priv)

@@
struct iio_trigger *trigger;
@@
-trigger->private_data
+iio_trigger_get_drv_data(trigger)
</smpl>

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
e543acf07db78cfc135e45c4ce0ed26ccf774c37 19-Nov-2012 Bill Pemberton <wfp5p@virginia.edu> staging: iio: remove use of __devexit_p

CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer
needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
447d4f29ee3fa62f13c65688bb7b74d5a9a0d767 19-Nov-2012 Bill Pemberton <wfp5p@virginia.edu> staging: iio: remove use of __devexit

CONFIG_HOTPLUG is going away as an option so __devexit is no
longer needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4ae1c61ff2ba4fea4e4c1a045cb1f34520608789 19-Nov-2012 Bill Pemberton <wfp5p@virginia.edu> staging: iio: remove use of __devinit

CONFIG_HOTPLUG is going away as an option so __devinit is no longer
needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
587a51241c5d74a1e262d34e990f85dc4e5318c5 17-Sep-2012 Lars-Peter Clausen <lars@metafoo.de> staging:iio:trigger:bfintmr Add output support

Some converters require an external signal to start the conversion. This patch
adds support to the bfintmr trigger driver to generate such a signal.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2aecc5b95cdb17d7b80463e9c1a542f389403cbb 17-Sep-2012 Lars-Peter Clausen <lars@metafoo.de> staging:iio:trigger:bfintmr: Only enable timer when necessary

This patch hooks up the set_trigger_state callback for the blackfin timer
trigger driver and only enables the timer when a trigger consumer requests it to
be enabled. There really is no reason to keep the timer running and generate
interrupts if nobody is listening to them.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
37812d2e10e5790f3cc3319055aac0647080c4af 17-Sep-2012 Lars-Peter Clausen <lars@metafoo.de> staging:iio:trigger:bfintmr: Avoid divide by zero

If the timer frequency has not been configured yet get_gptimer_period() will
return 0. Handle this case instead of blindly dividing by the returned value.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
4bf8172772254a38741de139a355e36eabbb5cb8 21-Jun-2012 Lars-Peter Clausen <lars@metafoo.de> staging:iio:trigger: Use to_iio_trigger() instead of dev_get_drvdata()

Use to_iio_trigger(dev) instead of dev_get_drvdata(dev). Both will return the
trigger which belongs to the device, but the the first on is a bit more
lightweight. Also this will eventually free up the drvdata pointer of the device
for driver specific data.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7cbb753701d11f3c71e8543e1ae0fc0772edac06 26-Apr-2012 Lars-Peter Clausen <lars@metafoo.de> staging:iio: Streamline API function naming

Currently we use two different naming schemes in the IIO API, iio_verb_object
and iio_object_verb. E.g iio_device_register and iio_allocate_device. This
patches renames instances of the later to the former. The patch also renames allocate to
alloc as this seems to be the preferred form throughout the kernel.

In particular the following renames are performed by the patch:
iio_put_device -> iio_device_put
iio_allocate_device -> iio_device_alloc
iio_free_device -> iio_device_free
iio_get_trigger -> iio_trigger_get
iio_put_trigger -> iio_trigger_put
iio_allocate_trigger -> iio_trigger_alloc
iio_free_trigger -> iio_trigger_free

The conversion was done with the following coccinelle patch with manual fixes to
comments and documentation.

<smpl>
@@
@@
-iio_put_device
+iio_device_put
@@
@@
-iio_allocate_device
+iio_device_alloc
@@
@@
-iio_free_device
+iio_device_free
@@
@@
-iio_get_trigger
+iio_trigger_get
@@
@@
-iio_put_trigger
+iio_trigger_put
@@
@@
-iio_allocate_trigger
+iio_trigger_alloc
@@
@@
-iio_free_trigger
+iio_trigger_free
</smpl>

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
06458e277eac2b8761b0a04d3c808d57be281a2e 25-Apr-2012 Jonathan Cameron <jic23@kernel.org> IIO: Move core headers to include/linux/iio

Step 1 in moving the IIO core out of staging.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5f953732ac0ca0044114ad162306212a1b8dd5be 01-Mar-2012 Michael Hennerich <michael.hennerich@analog.com> staging: iio: Convert platform_drivers to use module_platform_driver

No functional changes.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dafb7d1bd07f61cbaf963345d4ed1c89923e6782 20-Oct-2011 Lars-Peter Clausen <lars@metafoo.de> staging:iio:trigger:bfin-timer: Fix compile error

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
d29f73db791098179af90e6a5b1df41f941b32cd 12-Aug-2011 Jonathan Cameron <jic23@cam.ac.uk> staging:iio:triggers introduce iio_trigger_ops to take const bits out of iio_trig_structure.

Right now this results in increased code, but I still think it is worth doing to avoid
replication across instances of drivers etc and move as much stuff as possible to constant.
Ops structure is optional for the occasional driver that uses none of it (currently
only the ad7793).

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
59c85e82c2e7a672cb4342dc5ccf9df8a3a14f73 18-May-2011 Jonathan Cameron <jic23@cam.ac.uk> staging:iio:trigger handle name attr in core, remove old alloc and register any control_attrs via struct device

As the majority of triggers don't actually have any other control_attrs lets use the fact
that struct device has a groups element when we do need to have these attributes registered.
A vargs function is used to cut down on lots of building strings in every single driver
just in order to pass them into the allocate.

Also iio_allocate_trigger_named -> iio_allocate_trigger as there is no
unamed version any more, so that is now just confusing.

Blackfin tested and fixed by Michael Hennerich.

V2: Elements from Michael Hennerich's patches for the ade7758

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
ea5dbf96dbbfa4cf29925e82af3a0a613079b1bd 23-Feb-2011 Michael Hennerich <michael.hennerich@analog.com> staging: IIO: trigger: New Blackfin specific trigger driver iio-trig-bfin-timer

This driver allows any Blackfin system timer to be used as IIO trigger.
It supports trigger rates from 0 to 100kHz in Hz resolution.

Changes since V1:
IIO: trigger: Apply review feedback

Add comment explaining Blackfin hardware timer configurations
Fix frequency_store, don't return -EINVAL for frequency set to 0

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>