Hi Vinod,
Do you have any further comments or suggestions on this serie ?
BR,
Cedric
2015-10-16 15:59 GMT+02:00 M'boumba Cedric Madianga <[email protected]>:
> This patchset adds support for the STM32 DMA controller.
> This controller provides 8 channels dedicated to managing memory access
> request from one or more peripherals.
> Each stream can have up to 8 requests in total.
>
> Changes since v3:
> - Fix regression introduced in v3 during request channel
> - Fix regression introduced in v3 for cyclic mode dma transfer
> - update interrupt description in DT
> - remove half transfer interrupt management as client callback as to be
> called only for complete transfer
>
> Changes since v2:
> - remove interrupt configuration management from DT (Mark)
> - remove FIFO configuration management from DT except threshold as it is very
> hard to handle it in the driver due to many possible combinations according
> to burst and bus width (Mark)
> - update DMA client message in DT documentation file
> - specify the order to be used to set per-channel DMA interrupts in the DT
> (Mark)
> - remove unused enumerations for channel and request ids (Daniel)
> - keep as soon as possible 80 lines char for more readability (Vinod)
> - replace unsigned int by u32 (Vinod)
> - use GFP_NOWAIT instead of GFP_ATOMIC during dma descriptors allocation
> (Vinod)
> - return error if burst is not supported in stm32_dma_get_burst() (Vinod)
> - return error if bus_width is not supported in stm32_dma_get_width() (Vinod)
> - add FIFO configuration management inside the driver except for threshold
> - add interrupt configuration management inside the driver (Mark)
> - rework stm32_dma_chan_irq() to handle error interrupt in one way (Vinod)
> - rework stm32_dma_set_xfer_param() to be easier to read
> - update stm32_dma_tx_status() to always return status from dma_cookie_status() (Vinod)
> - disable clk if we don't manage to stop the DMA channel during channel
> resources allocation (Daniel)
> - set driver as built-in as DMA will be required by other built-in driver
>
> Changes since v1:
> - remove dmamux boolean as it is not needed
> - replace dma by DMA in Kconfig (Maxime)
> - add default return value in stm32_dma_get_width()
> - add defalut return value in stm32_dma_get_burst()
> - use lower case for constant hexadecimal values (Maxime)
>
> M'boumba Cedric Madianga (4):
> dt-bindings: Document the STM32 DMA bindings
> dmaengine: Add STM32 DMA driver
> ARM: dts: Add STM32 DMA support for STM32F429 MCU
> ARM: configs: Add STM32 DMA support in STM32 defconfig
>
> .../devicetree/bindings/dma/stm32-dma.txt | 82 ++
> arch/arm/boot/dts/stm32f429.dtsi | 31 +
> arch/arm/configs/stm32_defconfig | 2 +
> drivers/dma/Kconfig | 12 +
> drivers/dma/Makefile | 1 +
> drivers/dma/stm32-dma.c | 1141 ++++++++++++++++++++
> 6 files changed, 1269 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/dma/stm32-dma.txt
> create mode 100644 drivers/dma/stm32-dma.c
>
> --
> 1.9.1
>