[PATCH V2 0/3] Input: Cypress TTSP device driver

Cypress TrueTouch(tm) Standard Product controllers are found in
a wide range of embedded devices. This patchset adds support for a
variety of TTSP controllers.

The original author of the driver is Kevin McNeely [off-list ref]

Since the hardware is capable of tracking identifiable contacts and the
original driver used multi-touch protocol type A (stateless), I've added
multi-touch protocol type B (stateful) support.

The driver is composed of a core driver that process the data sent by
the contacts (fingers) and two bus specific interface modules (I2C and SPI).

This is a second version of the driver that fixes a few issues called out by
Dmitry Torokhov.

The patchset is composed of the patches:

[PATCH V2 1/3] Input: cyttsp - Cypress TTSP capacitive touchscreen support
[PATCH V2 2/3] Input: cyttsp - add support for Cypress TTSP I2C bus interface
[PATCH V2 3/3] Input: cyttsp - add support for Cypress TTSP SPI bus interface