If struct rmi_device_platform_data contains pointers to other struct,
it gets difficult to allocate a fixed size struct and copy it over between
drivers.

Change the pointers into a struct and change the code in rmi4 accordingly.
Reviewed-by: NAndrew Duggan <aduggan@synaptics.com>
Signed-off-by: NBenjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Set the .enabled boolean and trigger an event processing when enabling
for edge-triggered systems.
Signed-off-by: NBenjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

These fields are not used anywhere, there is no point in carrying them.
Signed-off-by: NBenjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Typos...
Signed-off-by: NBenjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

F54 diagnostics report functions provide data based on the number of
enabled rx and tx electrodes, which is not identical to the number of
electrodes reported with F54:Query0 and F54:Query1. Those values report
the number of supported electrodes, not the number of enabled electrodes.
The number of enabled electrodes can be determined by analyzing F55:Ctrl1
(sensor receiver assignment) and F55:Ctrl2 (sensor transmitter assignment).

Propagate the number of enabled electrodes from F55 to F54 to avoid
corrupted output if not all electrodes are enabled.

Fixes: 3a762dbd ("[media] Input: synaptics-rmi4 - add support for F54 ...")
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
Tested-by: NNick Dyer <nick@shmanahar.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Add support for updating firmware, triggered by a sysfs attribute.

This patch has been tested on Synaptics S7300.
Signed-off-by: NNick Dyer <nick@shmanahar.org>
Tested-by: NChris Healy <cphealy@gmail.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

The rmi_f11 driver currently disables dribble packets and the palm detect
gesture for all devices. This patch creates a parameter in the 2d sensor
platform data for controlling this functionality on a per device basis.

For more information on dribble packets:
Commit 05ba999f ("HID: rmi: disable dribble packets on Synaptics
touchpads")

For more information on the palm detect gesture:
Commit f097deef ("HID: rmi: disable palm detect gesture when present")
Signed-off-by: NAndrew Duggan <aduggan@synaptics.com>
Reviewed-by: NBenjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: NBenjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

The attn IRQ is related to the chip, rather than the transport, so move
all handling of interrupts to the core driver. This also makes sure that
there are no races between interrupts and availability of the resources
used by the core driver.
Signed-off-by: NBjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: NBenjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Add the transport driver for devices using RMI4 over SPI.
Signed-off-by: NAndrew Duggan <aduggan@synaptics.com>
Tested-by: NBenjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: NLinus Walleij <linus.walleij@linaro.org>
Tested-by: NBjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

RMI4 F30 supports input from clickpad buttons and controls LEDs located
on the touchpad PCB. This patch adds support of the clickpad buttons and
defers supporting LEDs for the future.
Signed-off-by: NAndrew Duggan <aduggan@synaptics.com>
Signed-off-by: NBenjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: NBenjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: NLinus Walleij <linus.walleij@linaro.org>
Tested-by: NBjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

RMI4 currently defines two functions for reporting data for 2D sensors
(F11 and F12). This patch adds the common functionality which is shared
by devices with 2D reporting along with implementing functionality for
F11.
Signed-off-by: NAndrew Duggan <aduggan@synaptics.com>
Signed-off-by: NChristopher Heiny <cheiny@synaptics.com>
Tested-by: NBenjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: NLinus Walleij <linus.walleij@linaro.org>
Tested-by: NBjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Synaptics uses the Register Mapped Interface (RMI) protocol as a
communications interface for their devices. This driver adds the core
functionality needed to interface with RMI4 devices.

RMI devices can be connected to the host via several transport protocols
and can supports a wide variety of functionality defined by RMI functions.
Support for transport protocols and RMI functions are implemented in
individual drivers. The RMI4 core driver uses a bus architecture to
facilitate the various combinations of transport and function drivers
needed by a particular device.
Signed-off-by: NAndrew Duggan <aduggan@synaptics.com>
Signed-off-by: NChristopher Heiny <cheiny@synaptics.com>
Tested-by: NBenjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: NLinus Walleij <linus.walleij@linaro.org>
Tested-by: NBjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>