dmaengine: sun6i: Restructure code to allow extension for new SoCs

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The current code mixes three distinct operations when transforming
the slave config to register settings:

  1. special handling of DMA_SLAVE_BUSWIDTH_UNDEFINED, maxburst == 0
  2. range checking
  3. conversion of raw to register values

As the range checks depend on the specific SoC, move these out of the
conversion to distinct operations.

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

...

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Stefan Brüns 2017-09-28 03:49:20 +02:00 • committed by Vinod Koul

parent 5a6a6202fa

commit 88d8622c00

1 changed files with 38 additions and 28 deletions

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drivers/dma/sun6i-dma.c

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