Re: [PATCH 2/5] spi: spi-nxp-fspi: change the default lut index

[Michael Walle <mwalle@xxxxxxxxxx>]

> The fspi dynamic lut use the last lut for all IPS operations, the
> imx8ulp only supports 15 luts, so change the last lut index from

It's 16 LUTs, no? There's also index 0.

> 31 to 15.
> 
> Signed-off-by: Han Xu <han.xu@xxxxxxx>
> Signed-off-by: Haibo Chen <haibo.chen@xxxxxxx>
> ---
>  drivers/spi/spi-nxp-fspi.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/spi/spi-nxp-fspi.c b/drivers/spi/spi-nxp-fspi.c
> index 0feecf5ba010..9d6b4d22263c 100644
> --- a/drivers/spi/spi-nxp-fspi.c
> +++ b/drivers/spi/spi-nxp-fspi.c
> @@ -64,9 +64,9 @@
>  /*
>   * The driver only uses one single LUT entry, that is updated on
>   * each call of exec_op(). Index 0 is preset at boot with a basic
> - * read operation, so let's use the last entry (31).
> + * read operation, so let's use the last entry (15).

Please add the information about the imx8mulp to the comment.
Otherwise, the comment will be confusing for SoCs where there
are 32 LUTs.

-michael

>   */
> -#define	SEQID_LUT			31
> +#define	SEQID_LUT			15
>  
>  /* Registers used by the driver */
>  #define FSPI_MCR0			0x00
> -- 
2.34.1