[PATCH v2] input: touchscreen: Add support for Elan eKTF2127 touchscreen controller

On Sun, Aug 28, 2016 at 06:00:05PM +0200, Hans de Goede wrote:

From: Siebren Vroegindeweij <redacted>

This adds a driver for the Elan eKTF2127 touchscreen controller,
which speaks an i2c protocol which is distinctly different from
the already supported eKTH controllers.

Signed-off-by: Michel Verlaan <redacted>
Signed-off-by: Siebren Vroegindeweij <redacted>
Signed-off-by: Hans de Goede <redacted>
---
Changes in v2:
-Improve devicetree bindings document
-Use touchscreen_parse_properties and touchscreen_report_pos instead of DIY
-Remove a bunch of unused defines (copy and paste leftover from chipone driver)
-Some other minor cleanups and review comments addressed
-Add defines for some command / address hex-values
-Check packet header in interrupt handler
---
 .../bindings/input/touchscreen/ektf2127.txt        |  27 ++

Acked-by: Rob Herring <robh@kernel.org>

 drivers/input/touchscreen/Kconfig                  |  12 +
 drivers/input/touchscreen/Makefile                 |   1 +
 drivers/input/touchscreen/ektf2127.c               | 333 +++++++++++++++++++++
 4 files changed, 373 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/touchscreen/ektf2127.txt
 create mode 100644 drivers/input/touchscreen/ektf2127.c