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3 Commits

Author SHA1 Message Date
Long Cheng
9135408c3a dmaengine: mediatek: Add MediaTek UART APDMA support 
Add 8250 UART APDMA to support MediaTek UART. If MediaTek UART is
enabled by SERIAL_8250_MT6577, and we can enable this driver to offload
the UART device moving bytes.

Signed-off-by: Long Cheng <long.cheng@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2019-06-07 15:36:45 +05:30
Shun-Chih Yu
b1f01e48df dmaengine: mediatek: Add MediaTek Command-Queue DMA controller for MT6765 SoC 
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.

Signed-off-by: Shun-Chih Yu <shun-chih.yu@mediatek.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2018-11-11 15:15:18 +05:30
Sean Wang
548c4597e9 dmaengine: mediatek: Add MediaTek High-Speed DMA controller for MT7622 and MT7623 SoC 
MediaTek High-Speed DMA controller (HSDMA) on MT7622 and MT7623 SoC has
a single ring is dedicated to memory-to-memory transfer through ring based
descriptor management.

Even though there is only one physical ring available inside HSDMA, the
driver can be easily extended to the support of multiple virtual channels
processing simultaneously by means of DMA_VIRTUAL_CHANNELS effort.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
 2018-03-27 15:18:15 +05:30