[PATCH v4 0/2] Input: Support in the elantech driver of the trackpoint present on for instance Lenovo L530

[Ulrik De Bie <ulrik.debie-os@e2big.org>]

Patch 1 adds support for trackpoint on elantech driver for v3 models.
Patch 2 adds a psmouse_reset when the elantech probes fails. Patch 2 depends 
on Patch 1.

Changes since v3:
* Patch1: added (correct) error after input_allocate_device failure in elantech_init()
* Patch2: added more explanation to the why 

Changes since v2:
* psmouse_reset change is now moved to a separate patch
* comments/white spaces/newlines  cleanup
* Unexpected trackpoint message warning now only printed once
* removed some unnecessary casts
* Deleted etd->trackpoint_present and use instead etd->tp_dev to indicate the
  presence of a trackpoint
* Propagate the error when elantech_init fails

Changes since v1:
* New patch now with reference to 3.14rc1
* Added etd->trackpoint_present to indicate presence of trackpoint (based
  on MSB of etd->capabilities[0])
* trackpoint will only be registered now when MSB of etd->capabilities[0] is
  set; got confirmation that this is the indicator of trackpoint
* Added input_unregister_device/input_free_device in elantech_disconnect()
* Fixed a bug in cleaning up when elantech_init fails
* Rename commit to be more specific (now also applicable to future elantech
  v3 models with trackpoint)
* input device name 'TPPS/2 IBM TrackPoint' changed to
  'Elantech PS/2 TrackPoint', this patch is not ibm/lenovo specific!
* dev2 renamed to tp_dev to indicate that this is the trackpoint device
* etd->phys renamed to etd->tp_phys
* Added Lenovo 530 and Fujitsu H730 to the laptop list because those are now
  also known.
* Added psmouse_reset at the end of elantech_init when it fails
* Added warning when trackpoint packets are received with no trackpoint detected

The patches are also available from:
https://github.com/ulrikdb/linux/commit/53d8424bc2143d34c2be76064892079fe1917a9e
https://github.com/ulrikdb/linux/commit/cf12fcc6cdf51a7aad48d056750478aecd9d7eca


Ulrik De Bie (2):
  elantech: Add support for trackpoint found on some v3 models
  elantech: Call psmouse_reset when elantech probe fails

 drivers/input/mouse/elantech.c | 123 +++++++++++++++++++++++++++++++++++++++--
 drivers/input/mouse/elantech.h |   3 +
 2 files changed, 122 insertions(+), 4 deletions(-)

-- 
2.0.0