Modify the sh_keysc driver to use enable/disable_irq_wake()
during suspend and resume. These functions are used to enable
the sh_keysc interrupt in the interrupt controller so the
keypad can be used to wakeup the system from suspend.
Signed-off-by: NMagnus Damm <damm@igel.co.jp>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This patch changes sh_keysc to use to_platform_device()
for suspend. Thanks to Trilok Soni for this suggestion.
Signed-off-by: NMagnus Damm <damm@igel.co.jp>
Reviewed-by: NTrilok Soni <soni.trilok@gmail.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This patch adds wakeup support to the sh_keysc driver.
With this feature the ".../power/wakeup" file can be
used to enable and disable if the device takes the
system out of suspend. Default is enabled.
Signed-off-by: NMagnus Damm <damm@igel.co.jp>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Add clock framework support to the sh_mobile keysc driver and
adjust the board specific code accordingly.
Signed-off-by: NMagnus Damm <damm@igel.co.jp>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Remove request_mem_region() and release_mem_region() from sh_keysc driver.
Those functions can find resource conflict, but it is already checked in
platform_device_add().
Signed-off-by: NTetsuya Mukawa <mukawa@igel.co.jp>
Signed-off-by: NMagnus Damm <damm@igel.co.jp>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Cc: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Avoid double free situation from happening by removing input_free_device()
after input_unregister_device(). Suggested by Dmitry Torokhov.
Signed-off-by: NMagnus Damm <damm@igel.co.jp>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Add a platform driver for the SuperH KEYSC block.  The driver expects to get
mode, timing information and keypad layout from the board code as platform
data.  The board code is resonsible for pin configuration.

Both sh7343 and sh7722 should be supported, but only the sh7722 processor has
been tested so far.  SH_KEYSC_MODE_3 is yet to be tested.
Signed-off-by: NMagnus Damm <damm@igel.co.jp>
Cc: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>