[PATCH] tty: hvc: Don't enable the RISC-V SBI console by default

[Paul Walmsley]

On Wed, 14 Feb 2024, Palmer Dabbelt wrote:

> From: Palmer Dabbelt <palmer at rivosinc.com>
> 
> The new SBI console has the same problem as the old one: there's only
> one shared backing hardware and no synchronization, so the two drivers
> end up stepping on each other.  This was the same issue the old SBI-0.1
> console drivers had, but that was disabled by default when SBI-0.1 was.
> 
> So just mark the new driver as nonportable.
> 
> Reported-by: Emil Renner Berthing <kernel at esmil.dk>
> Fixes: 88ead68e764c ("tty: Add SBI debug console support to HVC SBI driver")
> Signed-off-by: Palmer Dabbelt <palmer at rivosinc.com>

Reviewed-by: Paul Walmsley <paul.walmsley at sifive.com>


- Paul