Re: [PATCH v1 RFC 1/2] spi: introduce fallback to pio

[Mark Brown]

On Tue, Jun 16, 2020 at 02:03:40AM +0000, Robin Gong wrote:
> On 2020/06/15 22:56 Mark Brown <broonie@xxxxxxxxxx> wrote: 

>         struct list_head transfer_list;
> +
> +#define        SPI_TRANS_DMA_PREP_FAIL BIT(3)  /* prepare dma failed */
> +       u16             flags;

I'd just make this a generic flag for failures before we start
interacting with the hardware rather than specifically this one error
case.  Otherwise this looks fine.

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