[0/5] dmaengine: dma-jz4780: Driver updates

Message

Paul Cercueil Oct. 11, 2021, 2:36 p.m. UTC

Hi Vinod,

A small set of updates to the dma-jz4780 driver.

It adds support for the MDMA/BDMA engines in the JZ4760(B) and JZ4770
SoCs, which are just regular cores with less channels.

It also adds support for bidirectional channels, so that devices that
only do half-duplex transfers can request a single DMA channel for both
directions.

Cheers,
-Paul

Paul Cercueil (5):
  dt-bindings: dma: ingenic: Add compatible strings for MDMA and BDMA
  dt-bindings: dma: ingenic: Support #dma-cells = <3>
  dmaengine: jz4780: Work around hardware bug on JZ4760 SoCs
  dmaengine: jz4780: Add support for the MDMA and BDMA in the JZ4760(B)
  dmaengine: jz4780: Support bidirectional I/O on one channel

 .../devicetree/bindings/dma/ingenic,dma.yaml  | 34 +++++---
 drivers/dma/dma-jz4780.c                      | 84 +++++++++++++++----
 2 files changed, 91 insertions(+), 27 deletions(-)