The mxt_check_matrix_size() is currently setting the CTE mode to match
xline/yline information that is in the platform data, but it does not
take into account for example the fact that we could have a key array
in use too (key array would use some x/y lines as well).

It would be better to simply rely on the configuration data, and make
sure that the CTE mode set in there matches the touch object (touchscreen,
key array, proximity) configuration (which are set in the config data too).
Signed-off-by: NIiro Valkonen <iiro.valkonen@atmel.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Different board have different requirements/setups so let's be more
flexible.
Signed-off-by: NIiro Valkonen <iiro.valkonen@atmel.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

As there is no common configuration settings that would work in every
situation, remove the fixed config data from driver code and add
config data to platform data.
Signed-off-by: NIiro Valkonen <iiro.valkonen@atmel.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

"mXT224" is used in the Intel mid firmware in SFI tables to identify the
presence of this I2C device.
Signed-off-by: NChris Leech <christopher.leech@linux.intel.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Read the whole message, as reading just the first byte isn't always
guaranteed to clear the message.
Signed-off-by: NIiro Valkonen <iiro.valkonen@atmel.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Change prefixes from qt602240 to mxt to reflect that the driver supports
whole line of mXT touchscreens.
Signed-off-by: NIiro Valkonen <iiro.valkonen@atmel.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Since the driver will be supporting whole range of Atmels mXT touchscreen
controllers we better rename it to atmel_mxt_ts.
Acked-by: NIiro Valkonen <iiro.valkonen@atmel.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The kcalloc call for the object table is using sizeof(struct qt602240_data)
when it should be using sizeof(struct qt6602240_object), resulting in a larger
allocation than is required.
Signed-off-by: NChris Leech <christopher.leech@linux.intel.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The chip's full name is AT42QT602240 or ATMXT224. This is a capacitive
touchscreen supporting 10-contact multitouch and using I2C interface.
Signed-off-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Acked-by: NHenrik Rydberg <rydberg@euromail.se>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>