[PATCH v4 0/3] Input: Cypress TTSP device driver

Cypress TrueTouch(tm) Standard Product controllers are found in
a wide range of embedded devices. This patch-set 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 fourth version of the driver that fixes issues called out by
Dmitry Torokhov, Henrik Rydberg and Mohan Pallaka

The patchset is composed of the patches:

[PATCH v4 1/3] Input: cyttsp - Cypress TTSP capacitive multi-touch screen support
[PATCH v4 2/3] Input: cyttsp - add support for Cypress TTSP touchscreen I2C bus interface
[PATCH v4 3/3] Input: cyttsp - add support for Cypress TTSP touchscreen SPI bus interface