Fix the the runtime suspend power management not working issue when system
starts up and before user touches the trackpad device.
TEST=test on Chromebook.
Signed-off-by: NDudley Du <dudl@cypress.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Gen5 and Gen6 trackpad devices are able to detect and report object
proximity data/events, add this function support in the cyapa driver
through the ABS_DISTANCE event.
Signed-off-by: NDudley Du <dudl@cypress.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Change 'gen5' to 'pip' for all macros, variables and functions that are
shared between gen5 and gen6 modules to make naming more clear and
readable.

Also fix a few spelling errors.
Signed-off-by: NDudley Du <dudl@cypress.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

As the name suggests, always_unused argument in cyapa_gen3_set_power_mode()
is never used, so there is no reason for setting it to 0.
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Use asm/unaligned.h instead of linux/unaligned/access_ok.h header file to
fix compiling issues such as following while doing cross platform
compiling:

"include/linux/unaligned/access_ok.h:7:19: error: redefinition of
 'get_unaligned_le16'
...
include/linux/unaligned/le_struct.h:6:19: note: previous definition of
 'get_unaligned_le16' was here".
Reported-by: Nkbuild test robot <kbuild-all@01.org>
Signed-off-by: NDudley Du <dudl@cypress.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Add force re-calibrate function support for gen3 trackpad device, it can be
used through sysfs calibrate interface.
Signed-off-by: NDudley Du <dudl@cypress.com>
Tested-by: NJeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Add read baseline function supported for gen3 trackpad device, it can be
used through sysfs baseline interface.
Signed-off-by: NDudley Du <dudl@cypress.com>
Tested-by: NJeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Add support for firmware image update for gen3 trackpad devices; the
firmware update is initiated by writing to update_fw sysfs attribute.
Signed-off-by: NDudley Du <dudl@cypress.com>
Tested-by: NJeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

In order to support multiple different chipsets and communication protocols
trackpad devices in one cyapa driver, the new cyapa driver is re-designed
with one cyapa driver core and multiple device specific functions component.
The cyapa driver core is contained in this patch, it supplies basic functions
that working with kernel and input subsystem, and also supplies the interfaces
that the specific devices' component can connect and work together with as
one driver.
Signed-off-by: NDudley Du <dudl@cypress.com>
Tested-by: NJeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>