* changes:
  tegra: power management for mouse/keyboard drivers

-Using workqueues instead of tasklets for Tx DMA.
-Waiting for the FIFO to drain after the DMA is done, as it is apparently
needed by the HW.
- Added new DMA API to check if the req is already queued. Using
  tegra_dma_is_empty might not be correct as one DMA chanel can be serviced
  by multiple clients.

With this change, i can browse the BT sometimes. It takes some retires to
enable the BT.

Also during the operation of the BT, i still see the messages like
"out-of-order packet arrived"

Don't know if this is an issue with ther UART or the BT protocol.

Change-Id: I1502ad8178c3c95b4128c564c9f3c1d957195d46

Added suspend and resume hooks.

tested on harmony

bug 642578

Change-Id: I7c5065403e1c5581fce16c6f3653baeb48af5820

DMA changes:
- Channel lock should be taken in the ISR for making the DMA driver SMP safe.
- In continous DMA mode,WCOUNT is the count of the half buffer not the full
buffer. So, when updating the bytes received member of the req structure,
received count should be accounted for appropriately.
- Implemented the tegra_dma_flush() API. This API stops the DMA, resets the
transfer status of the req in the head of the queue and reloads the req into
the hardware if pending.
- Added "threshold" callback. This is called when the buffer reaches the
  threshold. This is now aviable only for continous mode.

Serial driver updates:
- Simplifed the ISR handling in case of the DMA mode.
- Using RTS to enable the flow control when dequeing and enqueing the DMA
buffers. This will make sure that the sender will be flow controlled. This
is still not working properly.
- Added flush buffer call back - Called by serial core when the tx buffer is
reset.
- Fixed the locking at a couple of places, like ISR and shutdown callback.

With these changes, i could able to use the BT sometimes. Sometimes i got
parity errors.

When I swtiched the Tx to PIO mode, BT worked fine. This can be done by
changing the tx_force_pio global variable to 1.

Change-Id: I4f738faac2fdb14622257878ef08db5397eebf8a

On certain embedded devices, leaving the card clock enabled on
SD memory devices with no active transactions can increase
power consumption. Enable this option to automatically disable
the card clock after a transfer completes.

Change-Id: I6da3388c1528bf1334c3534b7251a526812199f1

commit 98968646e2f ("Adding USB OTG feature") causes the build to
break due to dependencies on otg_get_transceiver if OTG isn't enabled
for the platform.

Change-Id: I97af1bb032297f922932a30fa4ef7e4607133592

* changes:
  TEGRA - Adding USB OTG feature

Enabling support for the OTG in NVIDIA Tegra SoCs by providing simple
transceiver interface for detecting the Host or Device based on the
USBID and VBUS sensors.

Bug 629098 USB OTG problem
Tested on Whistler with Android

USB OTG is tested on whistler USB port1, by setting the USB mode type
as "NvOdmUsbModeType_OTG" in the ODM usb property of
arch/arm/mach-tegra/odm_kit/query/whistler/nvodm_query.c
Tested OTG-HOST by connecting USB keyboard and OTG-device by connecting adb.

Change-Id: I860e1f4be5f7c96765c2ce1ca320fdf212164811

Added the new product id in the usb id table, for PANJIT touch screen to work.
Enabled the PANJIT touch screen in the harmony config file.

Change-Id: I9914622fb4fe697f2cb7ede0d033aa46578c7d4b

* changes:
  tegra spi: Removing the unused api for multipletransfer