From: <shun-chih.yu@mediatek.com>
To: Sean Wang <sean.wang@mediatek.com>, Vinod Koul <vkoul@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Dan Williams <dan.j.williams@intel.com>
Cc: dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, srv_wsdupstream@mediatek.com
Subject: [PATCH v2] add support for Mediatek Command-Queue DMA controller on MT6765 SoC
Date: Wed, 17 Oct 2018 17:36:57 +0800 [thread overview]
Message-ID: <1539769019-32107-1-git-send-email-shun-chih.yu@mediatek.com> (raw)
Changes since v1:
- remove unused macros, typos
- leverage ASYNC_TX_ENABLE_CHANNEL_SWITCH to maintain DMA descriptor list
This patchset introduces support for MediaTek Command-Queue DMA controller.
MediaTek Command-Queue DMA controller (CQDMA) on MT6765 SoC is dedicated to memory-to-memory transfer through queue-based descriptor management.
There are only 3 physical channels inside CQDMA, while the driver is extended to support 32 virtual channels for multiple dma users to issue dma requests onto the CQDMA simultaneously.
Shun-Chih Yu (2):
dt-bindings: dmaengine: Add MediaTek Command-Queue DMA controller
bindings
dmaengine: mediatek: Add MediaTek Command-Queue DMA controller for
MT6765 SoC
.../devicetree/bindings/dma/mtk-cqdma.txt | 31 +
drivers/dma/mediatek/Kconfig | 13 +
drivers/dma/mediatek/Makefile | 1 +
drivers/dma/mediatek/mtk-cqdma.c | 943 ++++++++++++++++++++
4 files changed, 988 insertions(+)
create mode 100644 Documentation/devicetree/bindings/dma/mtk-cqdma.txt
create mode 100644 drivers/dma/mediatek/mtk-cqdma.c
next reply other threads:[~2018-10-17 9:36 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-17 9:36 shun-chih.yu [this message]
2018-10-17 9:36 ` [PATCH 1/2] dt-bindings: dmaengine: Add MediaTek Command-Queue DMA controller bindings shun-chih.yu
2018-10-17 9:36 ` [PATCH 2/2] dmaengine: mediatek: Add MediaTek Command-Queue DMA controller for MT6765 SoC shun-chih.yu
2018-10-18 1:31 ` kbuild test robot
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