This Patch series adds support for 32 bits per word trasfers using DMA and some defensive checks around dma controller capabilities. --- V1 Changes : Add support for AxSize=4 bytes to support 32bits/word --- V1->V2 Changes : Add dma capability check to make sure address widths are supported --- V2->V3 Changes : Split changes , add DMA direction check and other cosmetic chnages. --- Joy Chakraborty (2): spi: dw: Add 32 bpw support to DW DMA Controller spi: dw: Add dma controller capability checks drivers/spi/spi-dw-dma.c | 67 +++++++++++++++++++++++++++++++--------- drivers/spi/spi-dw.h | 1 + 2 files changed, 53 insertions(+), 15 deletions(-) -- 2.40.0.348.gf938b09366-goog