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Message-ID: <20170110220528.GD2053@amd>
Date: Tue, 10 Jan 2017 23:05:28 +0100
From: Pavel Machek <pavel@....cz>
To: Rob Herring <robh@...nel.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Marcel Holtmann <marcel@...tmann.org>,
Jiri Slaby <jslaby@...e.com>,
Sebastian Reichel <sre@...nel.org>,
Arnd Bergmann <arnd@...db.de>,
"Dr . H . Nikolaus Schaller" <hns@...delico.com>,
Peter Hurley <peter@...leysoftware.com>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Alan Cox <gnomes@...rguk.ukuu.org.uk>,
Loic Poulain <loic.poulain@...el.com>,
NeilBrown <neil@...wn.name>,
Linus Walleij <linus.walleij@...aro.org>,
linux-bluetooth@...r.kernel.org, linux-serial@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/9] Serial slave device bus
On Fri 2017-01-06 10:26:26, Rob Herring wrote:
> Here goes another attempt at a serial device bus (aka uart slaves, tty
> slaves, etc.).
>
> After some discussions with Dmitry at LPC, I decided to move away from
> extending serio and moved back to making a new bus type instead. He didn't
> think using serio was a good fit, and serio has a number of peculiarities
> in regards to sysfs and it's driver model. I don't think we want to inherit
> those for serial slave devices.
>
> This version sits on top of tty_port rather than uart_port as Alan
> requested. Once I created a struct tty rather than moving everything
> needed to tty_port, it became a lot easier and less invasive to the tty
> core code.
>
> I have hacked up versions of the BT ldisc and TI ST drivers moved over to
> use the serdev bus. I have BT working on the HiKey board which has TI BT.
> With the serdev bus support, it eliminates the need for the TI userspace
> UIM daemon.
>
> This series and the mentioned drivers can be found here[1].
For what it is worth, series looks good to me.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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