On Thu, Apr 27, 2023 at 12:33:13PM +0000, Joy Chakraborty wrote:
> Store address width capabilities of DMA controller during init and check
> the same per transfer to make sure the bits/word requirement can be met.
>
> Current DW DMA driver requires both tx and rx channel to be configured
> and functional hence a subset of both tx and rx channel address width
> capability is checked with the width requirement(n_bytes) for a
> transfer.
This breaks an x86 allmodconfig build:
/build/stage/linux/drivers/spi/spi-dw-dma.c: In function ‘dw_spi_dma_caps_init’:
/build/stage/linux/drivers/spi/spi-dw-dma.c:100:1: error: control reaches end of non-void function [-Werror=return-type]
100 | }
| ^
cc1: some warnings being treated as errors
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