From: w@1wt.eu (Willy Tarreau)
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 02:24:18 +0100 [thread overview]
Message-ID: <20170212012418.GA17841@1wt.eu> (raw)
In-Reply-To: <20170212011744.GB7328@lunn.ch>
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 :-/
Willy
WARNING: multiple messages have this Message-ID (diff)
From: Willy Tarreau <w@1wt.eu>
To: Andrew Lunn <andrew-g2DYL2Zd6BY@public.gmane.org>
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Jason Cooper <jason-NLaQJdtUoK4Be96aLqz0jA@public.gmane.org>,
Gregory Clement
<gregory.clement-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>,
Thomas Petazzoni
<thomas.petazzoni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>,
Arnaud Ebalard <arno-LkuqDEemtHBg9hUCZPvPmw@public.gmane.org>
Subject: Re: [PATCH] ARM: dts: armada-385-synology-ds116: add support for Synology DS116 NAS
Date: Sun, 12 Feb 2017 02:24:18 +0100 [thread overview]
Message-ID: <20170212012418.GA17841@1wt.eu> (raw)
In-Reply-To: <20170212011744.GB7328-g2DYL2Zd6BY@public.gmane.org>
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 :-/
Willy
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next prev parent reply other threads:[~2017-02-12 1:24 UTC|newest]
Thread overview: 16+ 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
2017-02-11 9:24 ` Willy Tarreau
2017-02-12 0:40 ` Andrew Lunn
2017-02-12 0:40 ` Andrew Lunn
2017-02-12 0:53 ` Willy Tarreau
2017-02-12 0:53 ` Willy Tarreau
2017-02-12 1:17 ` Andrew Lunn
2017-02-12 1:17 ` Andrew Lunn
2017-02-12 1:24 ` Willy Tarreau [this message]
2017-02-12 1:24 ` Willy Tarreau
2017-02-12 15:38 ` Andrew Lunn
2017-02-12 15:38 ` Andrew Lunn
2017-02-12 15:44 ` Willy Tarreau
2017-02-12 15:44 ` Willy Tarreau
2017-02-12 17:27 ` Thomas Petazzoni
2017-02-12 17:27 ` Thomas Petazzoni
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