[PATCH v3 0/2] DW DMAC: update device tree

Eugeniy Paltsev Eugeniy.Paltsev at synopsys.com
Fri Nov 18 11:12:34 PST 2016

It wasn't possible to enable some features like
memory-to-memory transfers or multi block transfers via DT.
It is fixed by these patches.

Changes for v3:
 * Update existing platform data.
   We don't need to update existing DTS because default logic 
   wasn't change: we don't set "is_nollp" if we read 
   configuration from DT before. And we don't set it now if
   "multi-block" property doesn't exist in DTS.

Changes for v2:
 * I thought about is_memcpy DT property: all known devices, which 
   use DT for configuration, support memory-to-memory transfers. 
   So we don't need to read it from DT. So enable it by default, 
   if we read configuration from DT.

 * Use "multi-block" instead of "hw-llp" name to be more clear.

 * Move adding DT property and adding documentation for this
   property to one patch.

Eugeniy Paltsev (2):
  DW DMAC: enable memory-to-memory transfers support
  DW DMAC: add multi-block property to device tree

 Documentation/devicetree/bindings/dma/snps-dma.txt |  2 ++
 drivers/dma/dw/core.c                              |  2 +-
 drivers/dma/dw/platform.c                          | 11 +++++++++++
 drivers/tty/serial/8250/8250_lpss.c                |  2 +-
 include/linux/platform_data/dma-dw.h               |  4 ++--
 5 files changed, 17 insertions(+), 4 deletions(-)


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