18 Aug, 2013

1 commit

• d536321df   iio: trigger: implement devm_iio_trigger_alloc/devm_iio_triger_free ... Browse Code »

  Add a resource managed devm_iio_trigger_alloc()/devm_iio_triger_free()
  to automatically clean up triggers allocated by IIO drivers, thus
  leading to simplified IIO drivers code.

  Signed-off-by: Jacek Anaszewski
  Signed-off-by: Kyunmin Park
  Signed-off-by: Jonathan Cameron

  Jacek Anaszewski

  2013-08-18 02:34:52 +0800  

20 Jul, 2013

1 commit

• a1a8e1dc1   iio:trigger: Fix use_count race condition ... Browse Code »

  When using more than one trigger consumer it can happen that multiple threads
  perform a read-modify-update cycle on 'use_count' concurrently. This can cause
  updates to be lost and use_count can get stuck at non-zero value, in which case
  the IIO core assumes that at least one thread is still running and will wait for
  it to finish before running any trigger handlers again. This effectively renders
  the trigger disabled and a reboot is necessary before it can be used again. To
  fix this make use_count an atomic variable. Also set it to the number of
  consumers before starting the first consumer, otherwise it might happen that
  use_count drops to 0 even though not all consumers have been run yet.

  Signed-off-by: Lars-Peter Clausen
  Tested-by: Denis Ciocca
  Signed-off-by: Jonathan Cameron

  Lars-Peter Clausen

  2013-07-20 17:18:53 +0800  

29 Jun, 2013

1 commit

• 8bade4066   iio:trigger: device_unregister->device_del to avoid double free ... Browse Code »

  iio_trigger unregistration and freeing has been separated in this
  code for some time, but it looks like the calls to the device
  handling were not appropriately updated.

  Signed-off-by: Jonathan Cameron
  Reported-by: Otavio Salvador
  Tested-by: Otavio Salvador
  Reviewed-by: Lars-Peter Clausen

  Jonathan Cameron

  2013-06-29 20:26:11 +0800  

07 Feb, 2013

1 commit

• 860c9c542   iio: tweak language in industrialio-trigger comments ... Browse Code »

  Signed-off-by: Peter Meerwald
  Signed-off-by: Jonathan Cameron

  Peter Meerwald

  2013-02-07 02:40:05 +0800  

08 Jul, 2012

1 commit

• 6d459aa01   iio:trigger: Register sysfs file statically ... Browse Code »

  The name sysfs attribute is the same for all triggers, so there is no need to
  register them dynamically at runtime. Create a attribute group for it and set it
  up for the bus attribute group. This also avoids a possible race condition
  where the uevent for the device is sent before the name sysfs attribute has been
  added.

  Signed-off-by: Lars-Peter Clausen
  Signed-off-by: Jonathan Cameron

  Lars-Peter Clausen

  2012-07-08 17:39:58 +0800  

07 Jul, 2012

1 commit

• 034bd7b5d   iio: fix spelling of detach in static func ... Browse Code »

  Signed-off-by: Peter Meerwald
  Signed-off-by: Jonathan Cameron

  Peter Meerwald

  2012-07-07 23:52:22 +0800  

23 Jun, 2012

1 commit

• 971ff1db4   iio:trigger: Use to_iio_trigger() instead of dev_get_drvdata() ... Browse Code »

  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.

  Since this is the last location where we used dev_get_drvdata() for retrieving
  the trigger there is no need anymore to assign the the trigger to the devices
  drvdata, so we can remove that as well.

  Signed-off-by: Lars-Peter Clausen
  Acked-by: Jonathan Cameron
  Signed-off-by: Greg Kroah-Hartman

  Lars-Peter Clausen

  2012-06-23 12:08:11 +0800  

15 May, 2012

1 commit

• e53f5ac52   iio: Use dev_to_iio_dev() ... Browse Code »

  Replace open-coded instances of getting a iio_dev struct from a device struct
  with dev_to_iio_dev().

  Signed-off-by: Lars-Peter Clausen
  Acked-by: Jonathan Cameron
  Signed-off-by: Greg Kroah-Hartman

  Lars-Peter Clausen

  2012-05-15 04:37:45 +0800  

30 Apr, 2012

1 commit

• 7cbb75370   staging:iio: Streamline API function naming ... Browse Code »

  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.

  @@
  @@
  -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

  Signed-off-by: Lars-Peter Clausen
  Acked-by: Jonathan Cameron
  Signed-off-by: Greg Kroah-Hartman

  Lars-Peter Clausen

  2012-04-30 09:23:49 +0800  

26 Apr, 2012

1 commit

• a980e0460   IIO: Move the core files to drivers/iio ... Browse Code »

  Take the core support + the kfifo buffer implentation out of
  staging. Whilst we are far from done in improving this subsystem
  it is now at a stage where the userspae interfaces (provided by
  the core) can be considered stable.

  Drivers will follow over a longer time scale.

  Signed-off-by: Jonathan Cameron
  Signed-off-by: Greg Kroah-Hartman

  Jonathan Cameron

  2012-04-26 02:11:38 +0800