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 <cedric.madianga@xxxxxxxxx>: > 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 > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
