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SubjectRe: [PATCH v1 RFC 1/2] spi: introduce fallback to pio
On Mon, Jun 15, 2020 at 02:53:29PM +0000, Robin Gong wrote:
> On 2020/06/15 22:36 Mark Brown <broonie@kernel.org> wrote:

> > We could also pass in a flag that could be set separately to the error code to
> > indicate that nothing had happened to the hardware yet.

> Do you mean spi-imx.c checking 'ctlr->flags' before return such error code?
> Or just like below done in spi.c.

No, I mean passing in an additional argument which can provide richer
data than trying to smash things into the return value.
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