From: Peter Hurley <peter@hurleysoftware.com>
To: "Dr. H. Nikolaus Schaller" <hns@goldelico.com>,
Mark Rutland <mark.rutland@arm.com>
Cc: Pavel Machek <pavel@ucw.cz>,
List for communicating with real GTA04 owners
<gta04-owner@goldelico.com>, NeilBrown <neil@brown.name>,
One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>,
Arnd Bergmann <arnd@arndb.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Sebastian Reichel <sre@kernel.org>,
"grant.likely@linaro.org" <grant.likely@linaro.org>,
Jiri Slaby <jslaby@suse.cz>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [Gta04-owner] [PATCH 0/3] tty slave device support - version 3.
Date: Thu, 07 May 2015 11:37:57 -0400 [thread overview]
Message-ID: <554B86D5.8080403@hurleysoftware.com> (raw)
In-Reply-To: <BD3D34DD-2FC8-44A2-89FA-35843065F50F@goldelico.com>
On 05/06/2015 09:28 AM, Dr. H. Nikolaus Schaller wrote:
> The key point appears to be how we want to see the serial connection. Is the
> device connected to the uart or the uart to a device?
>
> In OO terminology: „device connects to uart“ vs. „uart has device connected“.
> "d -> u“ vs. "u <- d“.
This is not a very good analogy because both relationships need to be
represented.
The practical consideration is the lifetime of the target device.
If the target device should/must have a lifetime (as viewed from the host)
outside that of the uart, then the target device should not be a slave device.
Object lifetime is controlled by expressions of ownership or scope.
Since devicetree offers no expression of ownership, scope is the
obvious and natural way to control lifetime.
Regards,
Peter Hurley
next prev parent reply other threads:[~2015-05-07 15:37 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-18 5:58 [PATCH 0/3] tty slave device support - version 3 NeilBrown
2015-03-18 5:58 ` [PATCH 1/3] TTY: use class_find_device to find port in uart_suspend/resume NeilBrown
[not found] ` <20150318055831.21025.27864.stgit-wvvUuzkyo1EYVZTmpyfIwg@public.gmane.org>
2015-03-25 16:20 ` Peter Hurley
2015-03-29 21:49 ` [Gta04-owner] " NeilBrown
2015-03-18 5:58 ` [PATCH 2/3] TTY: add support for tty_slave devices NeilBrown
2015-03-18 9:11 ` Paul Bolle
2015-03-22 3:32 ` NeilBrown
2015-03-20 19:41 ` Pavel Machek
2015-03-22 3:42 ` [Gta04-owner] " NeilBrown
[not found] ` <20150322144209.14abc603-wvvUuzkyo1EYVZTmpyfIwg@public.gmane.org>
2015-03-22 7:58 ` Pavel Machek
2015-03-24 10:31 ` Jiri Slaby
2015-03-30 23:45 ` NeilBrown
2015-03-25 16:30 ` Peter Hurley
2015-03-25 21:17 ` [Gta04-owner] " NeilBrown
2015-03-27 11:09 ` Peter Hurley
2015-03-31 0:33 ` NeilBrown
2015-03-18 5:58 ` [PATCH 3/3] tty/slaves: add a driver to power on/off UART attached devices NeilBrown
[not found] ` <20150318055831.21025.33670.stgit-wvvUuzkyo1EYVZTmpyfIwg@public.gmane.org>
2015-03-20 7:54 ` [Gta04-owner] " Dr. H. Nikolaus Schaller
[not found] ` <C53A3E5D-5AEA-4F0F-88A9-F9BC8CB0D0D6-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2015-03-20 8:54 ` NeilBrown
2015-03-20 9:34 ` Dr. H. Nikolaus Schaller
[not found] ` <14FB51CF-9568-4BF4-B917-2C019D992FDB-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2015-03-20 19:50 ` Pavel Machek
2015-03-20 23:31 ` NeilBrown
2015-03-24 17:58 ` Dr. H. Nikolaus Schaller
2015-03-25 1:45 ` Sebastian Reichel
2015-03-25 7:59 ` Dr. H. Nikolaus Schaller
2015-03-25 15:21 ` Sebastian Reichel
2015-03-25 16:44 ` Dr. H. Nikolaus Schaller
2015-03-26 18:08 ` Sebastian Reichel
2015-03-27 9:22 ` Dr. H. Nikolaus Schaller
2015-03-27 16:31 ` Sebastian Reichel
2015-03-27 17:11 ` Dr. H. Nikolaus Schaller
2015-04-27 20:35 ` Pavel Machek
2015-04-29 6:56 ` Dr. H. Nikolaus Schaller
2015-03-25 20:53 ` Pavel Machek
2015-03-25 21:25 ` Dr. H. Nikolaus Schaller
[not found] ` <1F3B5E32-1330-457C-AE25-791319293C38-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2015-03-26 5:56 ` Pavel Machek
2015-03-26 6:44 ` Dr. H. Nikolaus Schaller
[not found] ` <365B2C25-1782-4ADE-B620-190A4CC5E8E3-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2015-04-04 7:52 ` Pavel Machek
2015-03-25 20:42 ` Pavel Machek
2015-03-25 21:22 ` Dr. H. Nikolaus Schaller
2015-03-20 7:54 ` [Gta04-owner] [PATCH 0/3] tty slave device support - version 3 Dr. H. Nikolaus Schaller
[not found] ` <80D7E742-4633-4CCD-B754-221387D82922-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2015-03-20 8:43 ` NeilBrown
2015-03-20 8:54 ` Dr. H. Nikolaus Schaller
2015-03-20 13:08 ` Sebastian Reichel
2015-03-20 13:57 ` Dr. H. Nikolaus Schaller
[not found] ` <72268D51-F993-497A-B4F9-707C8DB7155C-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2015-03-20 17:14 ` Sebastian Reichel
2015-03-20 19:31 ` Pavel Machek
[not found] ` <20150318055437.21025.13990.stgit-wvvUuzkyo1EYVZTmpyfIwg@public.gmane.org>
2015-05-05 19:54 ` Peter Hurley
2015-05-05 20:46 ` NeilBrown
[not found] ` <55492001.30806-WaGBZJeGNqdsbIuE7sb01tBPR1lH4CV8@public.gmane.org>
2015-05-06 5:19 ` [Gta04-owner] " Dr. H. Nikolaus Schaller
2015-05-06 11:10 ` Peter Hurley
[not found] ` <DE60E7AA-1BF4-4A68-9638-E09F85FD5C72-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2015-05-06 9:27 ` Pavel Machek
2015-05-06 11:50 ` Dr. H. Nikolaus Schaller
2015-05-06 12:05 ` Peter Hurley
2015-05-06 12:27 ` Dr. H. Nikolaus Schaller
2015-05-06 12:36 ` Mark Rutland
2015-05-06 13:28 ` Dr. H. Nikolaus Schaller
2015-05-06 14:15 ` Mark Rutland
2015-05-06 16:09 ` Dr. H. Nikolaus Schaller
2015-05-06 17:18 ` Mark Rutland
2015-05-07 12:46 ` Dr. H. Nikolaus Schaller
2015-05-07 14:30 ` Peter Hurley
2015-05-07 15:11 ` Dr. H. Nikolaus Schaller
2015-05-07 16:18 ` Peter Hurley
2015-05-07 16:57 ` Dr. H. Nikolaus Schaller
[not found] ` <B4D487C5-C260-497B-A441-6C381D53616C-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2015-05-07 14:56 ` Peter Hurley
[not found] ` <554B7D33.602-WaGBZJeGNqdsbIuE7sb01tBPR1lH4CV8@public.gmane.org>
2015-05-07 15:34 ` Dr. H. Nikolaus Schaller
2015-05-07 15:51 ` Peter Hurley
2015-05-07 16:46 ` Dr. H. Nikolaus Schaller
2015-05-13 8:09 ` Dr. H. Nikolaus Schaller
2015-06-03 11:49 ` [PATCH RFC 0/3] UART slave device support Dr. H. Nikolaus Schaller
[not found] ` <56C579D3-E8F8-4B5A-B6E8-993B113F3461-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2015-06-06 13:09 ` Pavel Machek
[not found] ` <463356C5-E3C6-432C-A1C5-71F0287F1FEE@goldelico.com>
2015-06-03 12:09 ` [Gta04-owner] [PATCH RFC 3/3] misc: Add w2g0004 gps receiver driver Christ van Willegen
2015-05-07 15:37 ` Peter Hurley [this message]
[not found] ` <A2594559-CA92-40C2-A06A-AC2483E85CB1-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2015-05-06 14:28 ` [Gta04-owner] [PATCH 0/3] tty slave device support - version 3 Pavel Machek
2015-05-06 16:12 ` Dr. H. Nikolaus Schaller
[not found] ` <C68A105A-7147-4143-9B91-1A239726A780-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2015-06-06 13:09 ` Pavel Machek
2015-06-06 18:53 ` Belisko Marek
2015-06-06 18:55 ` Belisko Marek
2015-05-07 15:48 ` Rob Herring
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