linux-kernel - [PATCH 0/2] Apple ADMAC driver

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Date:   Wed, 30 Mar 2022 18:44:56 +0200
From:   Martin Povišer <povik+lin@...ebit.org>
To:     Hector Martin <marcan@...can.st>, Sven Peter <sven@...npeter.dev>,
        Vinod Koul <vkoul@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>
Cc:     Alyssa Rosenzweig <alyssa@...enzweig.io>,
        linux-arm-kernel@...ts.infradead.org, dmaengine@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Mark Kettenis <kettenis@...nbsd.org>,
        Martin Povišer <povik+lin@...ebit.org>
Subject: [PATCH 0/2] Apple ADMAC driver

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

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2.33.0