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SubjectRe: [PATCH 01/11] spi: dw: define capability for enhanced spi
On Tue, Aug 2, 2022 at 7:48 PM Mark Brown <broonie@kernel.org> wrote:
>
> On Tue, Aug 02, 2022 at 06:57:45PM +0100, Sudip Mukherjee wrote:
>
> > Some Synopsys SSI controllers support enhanced SPI which includes
> > Dual mode, Quad mode and Octal mode. Define the capability and mention
> > it in the controller supported modes.
>
> > +#define DW_SPI_CAP_EXT_SPI BIT(2)
>
> This isn't at all descriptive, it'd be better to have a capability bit
> for the various multi-line data modes (or possibly individual bits for
> them, though board setup will stop us using things that aren't supported
> in a given design anyway so it's a bit redundant) - that'd be a lot
> clearer and avoid confusion further down the line when some other
> feature gets added.

Do you mean to add separate capability bit like:
DW_SPI_CAP_DUAL_SPI
DW_SPI_CAP_QUAD_SPI and
DW_SPI_CAP_OCTAL_SPI ?


--
Regards
Sudip

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