[U-Boot] [PATCH v3 0/6] add dma uclass implementation and adopt ti-edma3 to it

[Mugunthan V N]

This patch series enables adds support for dma driver model and
to adopt driver model. This has been tested on am437x-sk evm
(logs [1]).
also pushed a branch for testing [2]

[1]: http://pastebin.ubuntu.com/14678498/
[2]: git://git.ti.com/~mugunthanvnm/ti-u-boot/mugunth-ti-u-boot.git dma-v3

changes from v2->v3:
* Simplified device find from uclass_find_first_device() and
  device_probe() to uclass_first_device() so that all dma
  devices auto probes.
* Changed ENODEV to EPROTONOSUPPORT which is appropriate here
* Added documentation for return values

changes from initial->v2:
* changed config_dm_dma to config_dma.
* removed un-wanted enums.
* added dma_get_device().
* removed post_bind in uclass driver and added device_probe
  in dma_get_device()

Mugunthan V N (6):
  dm: implement a DMA uclass
  dma: Kconfig: Add TI_EDMA3 entry
  sf: spi_flash: use dma to copy data from mmap region if platform
    supports
  spi: ti_qspi: compile out spi_flash_copy_mmap when CONFIG_DMA is
    defined
  drivers: dma: ti-edma3: convert driver to adopt driver model
  defconfig: am437x_sk_evm: enable dma driver model

 configs/am437x_sk_evm_defconfig |  1 +
 drivers/dma/Kconfig             | 22 +++++++++++
 drivers/dma/Makefile            |  2 +
 drivers/dma/dma-uclass.c        | 72 ++++++++++++++++++++++++++++++++++
 drivers/dma/ti-edma3.c          | 74 ++++++++++++++++++++++++++++++++++-
 drivers/mtd/spi/spi_flash.c     |  9 +++++
 drivers/spi/ti_qspi.c           |  2 +-
 include/dm/uclass-id.h          |  1 +
 include/dma.h                   | 86 +++++++++++++++++++++++++++++++++++++++++
 9 files changed, 266 insertions(+), 3 deletions(-)
 create mode 100644 drivers/dma/dma-uclass.c
 create mode 100644 include/dma.h

-- 
2.7.0.75.g3ee1e0f