From: Felipe Balbi <balbi@ti.com>
To: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>,
Tony Lindgren <tony@atomide.com>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
<linux-serial@vger.kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
<linux-kernel@vger.kernel.org>, <linux-omap@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
Sekhar Nori <nsekhar@ti.com>, Felipe Balbi <balbi@ti.com>,
<uwe@kleine-koenig.org>
Subject: Re: [PATCH] tty: serial: serial-omap: depend on !8250_omap
Date: Mon, 1 Dec 2014 19:51:18 -0600 [thread overview]
Message-ID: <20141202015118.GA1891@saruman> (raw)
In-Reply-To: <20141201231338.GA14524@fuloong-minipc.musicnaut.iki.fi>
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On Tue, Dec 02, 2014 at 01:13:38AM +0200, Aaro Koskinen wrote:
> Hi,
>
> On Mon, Dec 01, 2014 at 02:09:14PM +0000, One Thousand Gnomes wrote:
> > > Well the nightmare userspace switch from ttyS to ttyO few years ago is
> > > something we want to avoid.. I think the best solution would be to make
> > > serial-omap.c transparently provide support for ttyO using the new 8250
> > > code so both ttyS and ttyO devices would just work. Otherwise it will
> > > be years of "my serial port stopped working" questions again.
> >
> > Thata a udev problem not a kernel one surely.
>
> People also use serial console to observe the early kernel boot before
> the userspace is started.
right, we need a way to tell the kernel that ttyO%d and ttyS%d are the
exact same device so that console=ttyO0 and console=ttyS0 mean the same
thing. That maintains backwards compatibility and lets people move on
--
balbi
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next prev parent reply other threads:[~2014-12-02 1:52 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-26 22:01 [PATCH] tty: serial: serial-omap: depend on !8250_omap Sebastian Andrzej Siewior
2014-11-29 9:48 ` Sebastian Andrzej Siewior
2014-11-29 17:34 ` Tony Lindgren
2014-12-01 14:09 ` One Thousand Gnomes
2014-12-01 16:38 ` Tony Lindgren
2014-12-01 17:25 ` Sebastian Andrzej Siewior
2014-12-01 17:39 ` Tony Lindgren
2014-12-01 23:13 ` Aaro Koskinen
2014-12-02 1:51 ` Felipe Balbi [this message]
2014-12-05 13:51 ` One Thousand Gnomes
2014-12-18 17:47 ` [PATCH] tty: serial: 8250: omap: add ttySx console if the user didn't Sebastian Andrzej Siewior
2015-01-05 21:26 ` One Thousand Gnomes
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