Hi,

The Atmel Peripheral touch controller subsystem offers built-in hardware for
capacitive touch measurment on sensors that function as buttons, sliders and
wheels. It is available on SAMA5D2.

A firmware and a configuration file describing the topology and the parameters
of the sensor are loaded when probing the driver.

Ludovic Desroches (4):
  input: misc: introduce Atmel PTC driver
  ARM: dts: at91: sama5d2: add PTC subsystem device
  MAINTAINERS: add Atmel PTC entries
  dt-bindings: input: Add Atmel PTC subsystem bindings

 .../devicetree/bindings/input/atmel,ptc.txt        |  67 +++
 MAINTAINERS                                        |   7 +
 arch/arm/boot/dts/sama5d2.dtsi                     |  16 +
 drivers/input/misc/Kconfig                         |  12 +
 drivers/input/misc/Makefile                        |   1 +
 drivers/input/misc/atmel_ptc.c                     | 651 +++++++++++++++++++++
 include/uapi/linux/atmel_ptc.h                     | 355 +++++++++++
 7 files changed, 1109 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/atmel,ptc.txt
 create mode 100644 drivers/input/misc/atmel_ptc.c
 create mode 100644 include/uapi/linux/atmel_ptc.h

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2.9.0