linux-kernel - Re: [PATCH] console: use first console if stdout-path device doesn't appear

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Date:   Tue, 18 Oct 2016 20:58:49 +0200
From:   Andreas Schwab <schwab@...ux-m68k.org>
To:     Paul Burton <paul.burton@...tec.com>
Cc:     <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Petr Mladek <pmladek@...e.com>,
        "Sergey Senozhatsky" <sergey.senozhatsky@...il.com>,
        Borislav Petkov <bp@...e.de>, Tejun Heo <tj@...nel.org>,
        <linuxppc-dev@...ts.ozlabs.org>
Subject: Re: [PATCH] console: use first console if stdout-path device doesn't appear

On Okt 18 2016, Paul Burton <paul.burton@...tec.com> wrote:

> If a device tree specified a preferred device for kernel console output
> via the stdout-path or linux,stdout-path chosen node properties there's
> no guarantee that it will have specified a device for which we have a
> driver. It may also be the case that we do have a driver but it doesn't
> call of_console_check() to register as a preferred console (eg. offb
> driver as used on powermac systems). In these cases try to ensure that
> we provide some console output by enabling the first console in the
> console_drivers list.
>
> As I don't have access to an affected system this has only been build
> tested - testing would be most appreciated.

Unfortunately that doesn't work.  The initial console still cannot be
opened.

Andreas.

-- 
Andreas Schwab, schwab@...ux-m68k.org
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