This patchset adds support for the STM32 DMA multiplexer.
It allows to map any peripheral DMA request to any channel of the product
DMAs.
This IP has been introduced with STM32H7 SoC.
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Version history:
v3:
* change compatible to st,stm32h7-dmamux to be mode Soc specific
* add verbosity in dma-cells
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Pierre-Yves MORDRET (5):
dt-bindings: Document the STM32 DMAMUX bindings
dmaengine: Add STM32 DMAMUX driver
dt-bindings: stm32-dma: Add property to handle STM32 DMAMUX
dmaengine: stm32-dma: Add support for STM32 DMAMUX
ARM: configs: stm32: Add DMAMUX support in STM32 defconfig
.../devicetree/bindings/dma/stm32-dma.txt | 5 +-
.../devicetree/bindings/dma/stm32-dmamux.txt | 60 +++++
arch/arm/configs/stm32_defconfig | 1 +
drivers/dma/Kconfig | 9 +
drivers/dma/Makefile | 1 +
drivers/dma/stm32-dma.c | 44 ++--
drivers/dma/stm32-dmamux.c | 253 +++++++++++++++++++++
include/linux/dma/stm32-dmamux.h | 21 ++
8 files changed, 380 insertions(+), 14 deletions(-)
create mode 100644 Documentation/devicetree/bindings/dma/stm32-dmamux.txt
create mode 100644 drivers/dma/stm32-dmamux.c
create mode 100644 include/linux/dma/stm32-dmamux.h
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2.7.4
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