Re: [PATCH v11 03/10] spi: Add multi-cs memories support in SPI core

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On Sat, Jan 20, 2024 at 09:05:43AM -0800, Guenter Roeck wrote:

> FWIW, the problem is due to

> +#define SPI_CS_CNT_MAX 4

> in the offending patch, but apeed2400 FMC supports up to 5 SPI chip selects.
> 
>  static const struct aspeed_spi_data ast2400_fmc_data = {
>         .max_cs        = 5,
> 	^^^^^^^^^^^^^^^^^^^
>         .hastype       = true,

> Limiting .max_cs to 4 or increasing SPI_CS_CNT_MAX to 5 fixes the problem,
> though of course I don't know if increasing SPI_CS_CNT_MAX has other side
> effects.

Yeah, I was coming to a similar conclusion myself - the limit is just
too low.  I can't see any problem with increasing it.

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