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.
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