dmaengine: Add STM32 DMAMUX driver

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This patch implements the STM32 DMAMUX driver.

The DMAMUX request multiplexer allows routing a DMA request line between
the peripherals and the DMA controllers of the product. The routing
function is ensured by a programmable multi-channel DMA request line
multiplexer. Each channel selects a unique DMA request line,
unconditionally or synchronously with events from its DMAMUX
synchronization inputs. The DMAMUX may also be used as a DMA request
generator from programmable events on its input trigger signals

Signed-off-by: M'boumba Cedric Madianga <cedric.madianga@gmail.com>
Signed-off-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

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Pierre-Yves MORDRET 2017-09-22 09:31:30 +02:00 • committed by Vinod Koul

parent da6789756d

commit df7e762db5

3 changed files with 337 additions and 0 deletions

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9

drivers/dma/Kconfig

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1

drivers/dma/Makefile

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327

drivers/dma/stm32-dmamux.c

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