Input: mma8450 - fix signed 12bits to 32bits conversion

Event value is wrong. Should be in range -2048 to 2047, but is in
range 0 to 4095.  Use s8 to int conversion and remove 0xfff mask.

Signed-off-by: Sebastien Royen <sebastien.royen@armadeus.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: arc_ps2 - add support for device tree

Add match table for device tree binding and dts binding doc.

Signed-off-by: Mischa Jonker <mjonker@synopsys.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: imx_keypad - switch to using managed resources

Using devm_ functions can make the code cleaner and simpler.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: tegra-kbc - support for defining row/columns based on SoC

NVIDIA's Tegra20 and Tegra30 supports the 16x8 keyboard matrix and T114
support the 11x8 Key matrix.

Add support for defining the maximum row/columns based on SoC through
proper compatibility.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>