From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Tony Lindgren <tony@atomide.com>
Cc: "Jiri Slaby" <jirislaby@kernel.org>,
"Rob Herring" <robh@kernel.org>,
"Andy Shevchenko" <andriy.shevchenko@intel.com>,
"Dhruva Gole" <d-gole@ti.com>,
"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>,
"John Ogness" <john.ogness@linutronix.de>,
"Johan Hovold" <johan@kernel.org>,
"Sebastian Andrzej Siewior" <bigeasy@linutronix.de>,
"Vignesh Raghavendra" <vigneshr@ti.com>,
linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
"Maximilian Luz" <luzmaximilian@gmail.com>
Subject: Re: [RFC PATCH 1/2] serial: core: Move tty and serdev to be children of serial core port device
Date: Tue, 24 Oct 2023 13:52:19 +0200 [thread overview]
Message-ID: <2023102401-playtime-moonrise-6f05@gregkh> (raw)
In-Reply-To: <20231024113624.54364-1-tony@atomide.com>
On Tue, Oct 24, 2023 at 02:36:18PM +0300, Tony Lindgren wrote:
> Let's move tty and serdev controller to be children of the serial core port
> device. This way the runtime PM usage count of a child device propagates
> to the serial hardware device.
>
> The tty and serdev devices are associated with a specific serial port of
> a serial hardware controller device, and we now have serial core hierarchy
> of controllers and ports.
>
> The tty device moves happily with just a change of the parent device.
> The serdev device init needs some changes to separate the serial hardware
> controller device from the parent device.
>
What does this change the sysfs tree to look like?
No objection from me, just curious.
thanks,
greg k-h
next prev parent reply other threads:[~2023-10-24 11:52 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-24 11:36 [RFC PATCH 1/2] serial: core: Move tty and serdev to be children of serial core port device Tony Lindgren
2023-10-24 11:36 ` [RFC PATCH 2/2] serial: core: Revert checks for tx runtime PM state Tony Lindgren
2023-10-24 11:52 ` Greg Kroah-Hartman [this message]
2023-10-24 12:29 ` [RFC PATCH 1/2] serial: core: Move tty and serdev to be children of serial core port device Tony Lindgren
2023-10-24 12:42 ` Andy Shevchenko
2023-10-24 12:45 ` Tony Lindgren
2023-10-24 14:01 ` Greg Kroah-Hartman
2023-10-25 6:51 ` Tony Lindgren
2023-10-25 7:33 ` Johan Hovold
2023-10-25 8:24 ` Tony Lindgren
2023-10-24 12:17 ` Andy Shevchenko
2023-10-24 12:43 ` Andy Shevchenko
2023-10-25 6:53 ` Tony Lindgren
2023-10-24 12:48 ` Johan Hovold
2023-10-24 13:37 ` Tony Lindgren
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