[0/2] Apple ADMAC driver

Message

Martin Povišer March 30, 2022, 4:44 p.m. UTC

Hi,

for your review I am submitting a driver for Audio DMA Controller on
recent Apple SoCs.

One note I want to leave: The docs appear to be wrong on the residue
semantics of device_tx_status. They say "In the case of a cyclic
transfer, it should only take into account the current period."
But e.g. ALSA expects the residue to be of the full buffer.

Martin

Martin Povišer (2):
  dt-bindings: dma: Add apple,admac binding
  dmaengine: apple-admac: Add Apple ADMAC driver

 .../devicetree/bindings/dma/apple,admac.yaml  |  73 ++
 MAINTAINERS                                   |   2 +
 drivers/dma/Kconfig                           |   8 +
 drivers/dma/Makefile                          |   1 +
 drivers/dma/apple-admac.c                     | 799 ++++++++++++++++++
 5 files changed, 883 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/dma/apple,admac.yaml
 create mode 100644 drivers/dma/apple-admac.c