From: andrew@lunn.ch (Andrew Lunn)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: dts: armada-385-synology-ds116: add support for Synology DS116 NAS
Date: Sun, 12 Feb 2017 16:38:55 +0100 [thread overview]
Message-ID: <20170212153855.GA17141@lunn.ch> (raw)
In-Reply-To: <20170212012418.GA17841@1wt.eu>
On Sun, Feb 12, 2017 at 02:24:18AM +0100, Willy Tarreau wrote:
> On Sun, Feb 12, 2017 at 02:17:44AM +0100, Andrew Lunn wrote:
> > > But won't that squat the I/O address and prevent me from using all the
> > > other codes via the regular serial port ?
> >
> > Nope. That driver hijacks the serial port during shutdown to actually
> > turn the power off. The rest of the time, it does not touch the serial
> > port. Userspace, or the rest of the kernel is free to use it.
>
> OK so I should declare both the serial and the power-off device at the
> same address ? Excuse-me for the dumb question but I'm not much used to
> doing uncommon things in DTS files :-/
Hi Willy
What you have in v2 and v3 looks good. It could be considered a bit of
a hack, two nodes for the same hardware block. But they are used at
different times, normal runtime, and late in the shutdown. So it works
out O.K.
Andrew
next prev parent reply other threads:[~2017-02-12 15:38 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-11 9:24 [PATCH] ARM: dts: armada-385-synology-ds116: add support for Synology DS116 NAS Willy Tarreau
2017-02-12 0:40 ` Andrew Lunn
2017-02-12 0:53 ` Willy Tarreau
2017-02-12 1:17 ` Andrew Lunn
2017-02-12 1:24 ` Willy Tarreau
2017-02-12 15:38 ` Andrew Lunn [this message]
2017-02-12 15:44 ` Willy Tarreau
2017-02-12 17:27 ` Thomas Petazzoni
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