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
