[PATCH] ns16550: Fix DM serial operation with non-DM SPL

[Sergei Antonov]

On Tue, 17 Jan 2023 at 15:10, Andre Przywara <andre.przywara at arm.com> wrote:

> -#if CONFIG_IS_ENABLED(DM_SERIAL) && !defined(CONFIG_SYS_NS16550_REG_SIZE)
> +#if CONFIG_IS_ENABLED(DM_SERIAL)
>  /*
>   * For driver model we always use one byte per register, and sort out the
>   * differences in the driver
>   */
> +#undef CONFIG_SYS_NS16550_REG_SIZE
>  #define CONFIG_SYS_NS16550_REG_SIZE (-1)
>  #endif

What if I have DM_SERIAL and a 16550 UART with 32-bit registers?
Before 9591b63531fa the register size of 8 was enforced for DM_SERIAL.