[PATCH RFC v13 0/5] MPC512x DMA slave s/g support, OF DMA lookup

Alexander Popov a13xp0p0v88 at gmail.com
Fri May 16 00:15:30 EST 2014

2013/7/14 Gerhard Sittig <gsi at denx.de>:
> this series
> - introduces slave s/g support (that's support for DMA transfers which
>    involve peripherals in contrast to mem-to-mem transfers)
> - adds device tree based lookup support for DMA channels
> - combines floating patches and related feedback which already covered
>    several aspects of what the suggested LPB driver needs, to demonstrate
>    how integration might be done


Changes in v12:
 A new patch (part 2/7) is added to this series.
 Part 6/7:
 - change the description of 'compatible' property according part 2/7;
 - improve the document according Gerhard's feedback;

Parts 1/7, 2/7 and 4/7 have been applied by Vinod Koul and
are excluded from v13.

Changes in v13:
 A new patch (part 1/5) is added to this series.
 Part 2/5:
 - fix style issue;
 - improve comments;

> known issues:
> - it's yet to get confirmed whether MPC8308 can use slave support or
>    whether the DMA controller's driver shall actively reject it, the
>    information that's available so far suggests that peripheral transfers
>    to IP bus attached I/O is useful and shall not get blocked right away

Alexander Popov (5):
  dmaengine: fix comment typo
  dma: mpc512x: add support for peripheral transfers
  dma: of: add common xlate function for matching by channel id
  dma: mpc512x: add device tree binding document
  dma: mpc512x: register for device tree channel lookup

 .../devicetree/bindings/dma/mpc512x-dma.txt        |  40 ++++
 arch/powerpc/boot/dts/mpc5121.dtsi                 |   1 +
 drivers/dma/mpc512x_dma.c                          | 257 ++++++++++++++++++++-
 drivers/dma/of-dma.c                               |  35 +++
 include/linux/dmaengine.h                          |   2 +-
 include/linux/of_dma.h                             |   4 +
 6 files changed, 332 insertions(+), 7 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/dma/mpc512x-dma.txt


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