Messages in this thread | | | Date | Fri, 14 Apr 2023 12:05:15 +0000 | Subject | [PATCH v6 0/5] spi: dw: DW SPI DMA Driver updates | From | Joy Chakraborty <> |
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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. --- V3->V4 Changes : Fix Sparce Warning | Reported-by: kernel test robot <lkp@intel.com> | Link: https://lore.kernel.org/oe-kbuild-all/202303270715.w9sMJhIh-lkp@intel.com/ --- V4->V5 Changes : Preserve reverse xmas Tree order, move direction check before initalisation of further capabilities, remove zero initialisations, remove error OR'ing. --- V5->V6 Changes : -Remove case of n_bytes=3 using 4_bytes buswidth -Avoid forward decaration -Break capability check patch into 2 -round n_bytes to power of 2 ( Bug Fix) -Add more explanation in commit text. ---
Joy Chakraborty (5): spi: dw: Add 32 bpw support to SPI DW DMA driver spi: dw: Move "dw_spi_can_dma" function spi: dw: Add DMA directional capability check spi: dw: Add DMA address widths capability check spi: dw: Round of n_bytes to power of 2
drivers/spi/spi-dw-core.c | 2 +- drivers/spi/spi-dw-dma.c | 75 +++++++++++++++++++++++++++++---------- drivers/spi/spi-dw.h | 1 + 3 files changed, 59 insertions(+), 19 deletions(-)
-- 2.40.0.634.g4ca3ef3211-goog
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