Linux 3.0.32
Revert "usb: musb: fix some runtime_pm issues"

This reverts commit 9e8376d4d47e0a97d64838286bd919587ff7c504.
Revert "usb: musb: fix pm_runtime mismatch (772aed4)"

This reverts commit 5f8236dcdc30894fe90e356ccaf902cc654b5ec7.
Revert "Increase wi-fi voltage by 0.25mV for stability purposes."

This reverts commit 24065f4c2ab2ab010f1bade7e0ca3ecbec109571.
Revert "tuna-wifi: lower wlan voltage to 1.8V (faux123)"

This reverts commit fefd91c1a9a03c199867b5de0025e22d625e1677.
OMAPDSS: DISPC: Fix rounding error in scaling decision

When checking if we are downscaling by more than a factor,
we were dividing the source dimensions instead of multiplying
back the target dimensions.  This allowed downscaling by
slightly more than the max supported downscaling, resulting
in out-of-range register settings and ultimately SYNC_LOST.

Change-Id: Ic039789c5011d64da870121eeb227a803af1fa83
Signed-off-by: Lajos Molnar <lajos@ti.com>
OMAP4: PM: errata: Wkup clk recycling needed after warm reset.

As W/A the call to omap4_trigger_ioctrl() has been added
at PM initialization time for I/O pads daisy chain reseting.

TI EID: i612; IMPACTED: OMAP4430 all revisions

Change-Id: Ifff5cf4ed79e15bbeed97dd2b1cc7d7cf19d2387
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
OMAP4: PM: Add errata id for handling Errata i736

The errata handler is present in kernel 3.0. The patch adds the
Errata id for simplification of search in the kernel sources

Change-Id: I346ac0e1262fdb3fcfd1e38879619baa02ebf4cb
Signed-off-by: Eugen Mandrenko <ievgen.mandrenko@ti.com>
Revert "OMAP4: PM: cold reset: wrong value is used to set LOGICRETSTATE"

This reverts commit a75b7459f8214c6658dddf95841d08f01d8e4ab3.
OMAP4: PM: cold reset: wrong value is used to set LOGICRETSTATE

The size of LOGICRETSTATE field is 1 bit, and pwrdm_set_logic_retst()
can accept only PWRDM_POWER_RET(0x1)/PWRDM_POWER_OFF(0x0) values.

Additional check of "pwrst" parameter and print out of error message
added in pwrdm_set_logic_retst() to minimize such issues in future.

Change-Id: I413e1e2ba3823574d4450225ed30cffb2cdfd565
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
OMAP4: PM: Add errata id for handling Errata i745

The errata handler is present in kernel 3.0. The patch adds the
Errata id for simplification of search in the kernel sources

Change-Id: I251c0bd09754e5af9ec40c01c50e24e25eba9227
Signed-off-by: Eugen Mandrenko <ievgen.mandrenko@ti.com>

Conflicts:

	arch/arm/mach-omap2/pm44xx.c
OMAP4: PM: IVA AUTO RET relaxed workaround in idle path

AUTO RET for IVA VDD Cannot be permanently enabled during OFF mode due to
potential race between IVA VDD entering RET and start of Device OFF mode.

It is mandatory to have AUTO RET for IVA VDD exlusive with Devide OFF mode.
In order to avoid lockup in OFF mode sequence, system must ensure IVA
voltage domain transitions straight from stable ON to OFF.

In addition, management of IVA VDD SmartReflex sensor at exit of idle path
may introduce a misalignment between IVA Voltage Controller state and IVA
PRCM voltage FSM based on following identified scenario:

IVA Voltage Controller is woken-up due to SmartReflex management while
IVA PRCM voltage FSM stays in RET in absence of any IVA module wake-up event
(which is not systematic in idle path as opposed to MPU and CORE VDDs being
necessarily woken up with MPU and CORE PDs).

WA involves:
Ensure stable ON-OFF transition for IVA voltage domain during OFF mode sequence.
Ensure VCON and PRCM FSM are kept aligned due to IVA SR handling in idle path.
1) AUTO RET for IVA VDD is enabled entering in idle path, disabled exiting idle
   path and IVA VDD is always woken-up with a SW dummy wakeup.
2) OFF mode is enabled only in Suspend path.
3) AUTO RET for IVA VDD remains disabled in Suspend path (before OFF mode).

REVISIT: Update the patch once proper Errata is out for 44xx.

Benefits:
1) This patch ensures it is possible to gate SYS_CLK during OS-Idle LCD OFF
when all domains are idled, saving up to 2mA at VBAT from external clock buffer.

2) IVA voltage domain is now allowed to scale to Retention during idle which
reduces power consumption on all types of use case allowing extensive use of
idle path (e.g.: Home screen, Page reading). Effects are especially visible
if system uses Smart-Reflex Class 1.5 compared to Class 3 considering the
increased difference of voltage from converged Voltage SR vs Retention voltage.

TODO: quantify the actual savings from IVA-RET with further measurements.

Change-Id: I01f0431f7556f0baf0b5b6b42092cd11c2442f00
Signed-off-by: Cedric Vamour <c-vamour@ti.com>
usb: musb: Fix memory corruption

rx_count, the number of bytes in the rx fifo, may be larger than the
size of the transfer buffer. Make sure we don't overflow the transfer
buffer in that case.

Bug: 6497399
Change-Id: I5bcf6dd543f9da4ee22944aa6c41673f2cca4c1f
Signed-off-by: Benoit Goby <benoit@android.com>
rpmsg: omx: fix copy_to_user in register/unregister ioctls

The ION fd registration and deregistration ioctls has the
arguments reversed in the copy_to_user() calls. The same
has been fixed.

Also included a minor additional case for returning a NULL
ION handle back to user-space.

Change-Id: I9d45957f9b913fa1775e70618f0da82e914a41d6
Signed-off-by: Tyler Luu <tluu@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
rpmsg: omx: send disconnect only if omx state is connected

The rpmsg_omx driver sends a disconnect message automatically when the
driver's .release is called. This should be done only if a connection
has been established, otherwise just destroy the local end point.

Change-Id: I21b84aa6d91ae0d456f49cbe958f8e64caf691d5
Signed-off-by: Miguel Vadillo <vadillo@ti.com>
rpmsg: omx: initialize completion event in rpmsg_omx_open

An omx object is created when opening the rpmsg-omx device. However
the "reply_arrived" completion event is not initialized until the
connection message is sent across.

When the rpmsg_omx driver is removed (like in recovery), all pending
threads waiting on the "reply_arrived" are unblocked by a complete_all
call, however, if the rpmsg-omx device was only opened, such event is
not initialized yet, so the complete_all call will dereference a null
object causing a panic.

This patch moves the initialization of the "reply_arrived" completion
event to the open call, after the allocation of the omx object.

Change-Id: I92cf9cf5ac748456cb43bedc88fe1a8d80addd6c
Signed-off-by: Juan Gutierrez <jgutierrez@ti.com>
OMAP: TILER: Add bounds checking on format inputs

Added bounds checking to validate incoming tiler format.

Change-Id: Icd791cc294ecb1838afb3f91451626debd59c29e
Signed-off-by: Andy Gross <andy.gross@ti.com>
OMAP: TILER: Make character driver creation configurable

The TILER code that creates the character driver code and
interacts with the userspace has been placed under the
kernel configuration option that controls the userspace,
so that the cdev creation is bypassed when userspace is
disabled.

Change-Id: I3d5d372433fc89e676e54088dc8af8bdb74b8007
Signed-off-by: Shivananda Hebbar <x0hebbar@ti.com>
Signed-off-by: Andy Gross <andy.gross@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
OMAP4: TILER: Add variable alignment allocation API

Added tiler_alloc_block_area_aligned API to allow
for variable alignment when allocating when using the kernel
APIs.

Change-Id: I2f3c44675a3fa1b2c6dfef21ccdd9bcac2f1d0e5
Signed-off-by: Andy Gross <andy.gross@ti.com>
Signed-off-by: Tony Zlatinski <x0146664@ti.com>
Signed-off-by: Atanas (Tony) Zlatinski <zlatinski@gmail.com>
OMAP4: TILER: Add offset parameter for allocation

Add offset parameter for use in tiler_alloc_block_area_aligned.
This allows a user to get a tiler allocation with a specific
alignment and offset.

Change-Id: I8b1b9dd17bc9def124ea92cbbede2f3c56823387
Signed-off-by: Andy Gross <andy.gross@ti.com>
Signed-off-by: Tony Zlatinski <x0146664@ti.com>
Signed-off-by: Atanas (Tony) Zlatinski <zlatinski@gmail.com>