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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>
14 lines
403 B
Plaintext
14 lines
403 B
Plaintext
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config MTK_HSDMA
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tristate "MediaTek High-Speed DMA controller support"
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depends on ARCH_MEDIATEK || COMPILE_TEST
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select DMA_ENGINE
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select DMA_VIRTUAL_CHANNELS
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---help---
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Enable support for High-Speed DMA controller on MediaTek
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SoCs.
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This controller provides the channels which is dedicated to
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memory-to-memory transfer to offload from CPU through ring-
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based descriptor management.
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