lower some wakelocks
OMAP: I2C: Wait till functional part of the I2C controller completely becomes valid

Bus busy status bit is not effective when functional part of the I2C controller
is not valid, and bus busy detection in omap_i2c_wait_for_bb() will be skipped
sometimes. So we should wait till functional part of the I2C controller
completely becomes valid, after setting the I2Ci.I2C_CON[15] I2C_EN bit to 1.
For doing that we have to wait till RDONE bit of SYSS register reach "1".

For details see TRM, 23.1.4.3 HS I2C Software Reset.

Change-Id: I989855d6cb2b1aa0098e11245dacb77583fe6647
Signed-off-by: Semen Protsenko <semen.protsenko@ti.com>

Conflicts:
	drivers/i2c/busses/i2c-omap.c
OMAP4: OMAPFB: Dont error if display is already ON

Dont error if display state is already ON.

Change-Id: Ibad859847f2edd19cf6cd0d285461c66ed43c9a2
Signed-off-by: Dandawate Saket <dsaket@ti.com>
Signed-off-by: Muralidhar Dixit <murali.dixit@ti.com>
Input: Send events one packet at a time

On heavy event loads, such as a multitouch driver, the irqsoff latency
can be as high as 250 us.  By accumulating a frame worth of data
before passing it on, the latency can be dramatically reduced.  As a
side effect, the special EV_SYN handling can be removed, since the
frame is now atomic.

This patch adds the events() handler callback and uses it if it
exists. The latency is improved by 50 us even without the callback.

Change-Id: Iebd9b1868ae6300a922a45b6d104e7c2b38e4cf5
Cc: Daniel Kurtz <djkurtz@chromium.org>
Tested-by: Benjamin Tissoires <benjamin.tissoires@enac.fr>
Tested-by: Ping Cheng <pingc@wacom.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>

Input: Improve the events-per-packet estimate

The events-per-packet estimate has so far been used by MT devices
only. This patch adjusts the packet buffer size to also accomodate the
KEY and MSC events.  Keyboards normally send one or two keys at a
time. MT devices normally send a number of button keys along with the
MT information.  The buffer size chosen here covers those cases, and
matches the default buffer size in evdev. Since the input estimate is
now preferred, remove the special input-mt estimate.

Reviewed-and-tested-by: Ping Cheng <pingc@wacom.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@enac.fr>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>
use uacces with memcpy