Input: mpr121 - switch to using managed resources

This change switches the driver to use devm_* managed resources APIs to
request the resources in probe to simplify probe error path and module
unloading and does away with remove function.

Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: pxa27x_keypad - switch to using managed resources

This change switches ithe driver to use devm_* APIs to allocate resources.
This helps to simplify failure path in probe function and module unloading
and does away with remove function.

Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: lpc32xx-keys - switch to using managed resources

This change switches to using devm_* managed resources APIs to
request the resources in probe to simplify probe error path and
module unloading.

Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: add driver for Elan I2C/SMbus touchpad

This driver supports Elan I2C/SMbus touchpads found in some laptops and
also in many Chromebooks.

Signed-off-by: Duson Lin <dusonlin@emc.com.tw>
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>