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From: Linus Walleij <linus.walleij@linaro.org>
To: Rob Herring <robh@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Marcel Holtmann <marcel@holtmann.org>,
	Jiri Slaby <jslaby@suse.com>, Sebastian Reichel <sre@kernel.org>,
	Pavel Machek <pavel@ucw.cz>,
	Peter Hurley <peter@hurleysoftware.com>,
	NeilBrown <neil@brown.name>,
	"Dr . H . Nikolaus Schaller" <hns@goldelico.com>,
	Arnd Bergmann <arnd@arndb.de>,
	"linux-bluetooth@vger.kernel.org"
	<linux-bluetooth@vger.kernel.org>,
	"linux-serial@vger.kernel.org" <linux-serial@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [RFC PATCH 0/3] UART slave device bus
Date: Thu, 18 Aug 2016 15:07:39 +0200	[thread overview]
Message-ID: <CACRpkdZYmXHE=6KoB7vn0PKrowEfEz6wh9_L6c4mtqQm_-du5A@mail.gmail.com> (raw)
In-Reply-To: <20160818011445.22726-1-robh@kernel.org>

On Thu, Aug 18, 2016 at 3:14 AM, Rob Herring <robh@kernel.org> wrote:

> Currently, devices attached via a UART are not well supported in the
> kernel. The problem is the device support is done in tty line disciplines,
> various platform drivers to handle some sideband, and in userspace with
> utilities such as hciattach.

Freaking *awesome* Rob, this really really needs to happen.
I'm very happy that you're driving this.

> This is functional with minimal testing using the loopback driver and
> pl011 (w/o DMA) UART under QEMU (modified to add a DT node for the slave
> device). It still needs lots of work and polish.

I have Bluetooth (HCI) over UART on the Nomadik and Ux500,
both with DMA support for the PL011 too. So I hope to be able
to utilize this.

(The HCI transport is then used for GPS, FM radio and whatnot
but that is another issue.)

Yours,
Linus Walleij

  parent reply	other threads:[~2016-08-18 13:10 UTC|newest]

Thread overview: 139+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-18  1:14 [RFC PATCH 0/3] UART slave device bus Rob Herring
2016-08-18  1:14 ` [RFC PATCH 1/3] uart bus: Introduce new bus for UART slave devices Rob Herring
2016-08-18  1:14 ` [RFC PATCH 2/3] tty: serial_core: make tty_struct optional Rob Herring
2016-08-18 10:50   ` Pavel Machek
2016-08-18  1:14 ` [RFC PATCH 3/3] tty: serial_core: add uart controller registration Rob Herring
2016-08-18 10:22 ` [RFC PATCH 0/3] UART slave device bus Greg Kroah-Hartman
2016-08-18 10:22   ` Greg Kroah-Hartman
2016-08-18 10:30   ` Marcel Holtmann
2016-08-18 10:53     ` Greg Kroah-Hartman
2016-08-18 13:53       ` Rob Herring
2016-08-18 13:15   ` Rob Herring
2016-08-18 15:04     ` One Thousand Gnomes
2016-08-18 18:33       ` Rob Herring
2016-08-19 11:03         ` One Thousand Gnomes
2016-08-25 16:40       ` Rob Herring
2016-08-25 16:40         ` Rob Herring
2016-08-26 13:12         ` One Thousand Gnomes
2016-08-18 10:39 ` H. Nikolaus Schaller
2016-08-18 10:39   ` H. Nikolaus Schaller
2016-08-18 10:47   ` Pavel Machek
2016-08-18 10:54     ` H. Nikolaus Schaller
2016-08-18 10:54       ` H. Nikolaus Schaller
2016-08-18 10:57       ` Greg Kroah-Hartman
2016-08-18 11:14         ` H. Nikolaus Schaller
2016-08-18 11:14           ` H. Nikolaus Schaller
2016-08-18 11:14           ` H. Nikolaus Schaller
2016-08-18 14:40         ` One Thousand Gnomes
2016-08-18 14:40           ` One Thousand Gnomes
2016-08-18 14:58           ` Greg Kroah-Hartman
2016-08-18 11:27     ` H. Nikolaus Schaller
2016-08-18 10:49   ` Marcel Holtmann
2016-08-18 10:55     ` Greg Kroah-Hartman
2016-08-18 11:01       ` Marcel Holtmann
2016-08-18 11:24         ` Greg Kroah-Hartman
2016-08-18 11:42           ` Pavel Machek
2016-08-18 11:42             ` Pavel Machek
2016-08-18 11:51           ` Marcel Holtmann
2016-08-18 11:51             ` Marcel Holtmann
2016-08-18 15:14             ` One Thousand Gnomes
2016-08-18 15:13           ` One Thousand Gnomes
2016-08-18 11:10       ` Pavel Machek
2016-08-18 11:18         ` H. Nikolaus Schaller
2016-08-18 11:49           ` Marcel Holtmann
2016-08-18 12:16             ` H. Nikolaus Schaller
2016-08-18 12:16               ` H. Nikolaus Schaller
2016-08-18 15:15             ` One Thousand Gnomes
2016-08-18 11:47         ` Marcel Holtmann
2016-08-18 13:01           ` Pavel Machek
2016-08-18 15:16           ` One Thousand Gnomes
2016-08-18 11:02     ` H. Nikolaus Schaller
2016-08-18 11:02       ` H. Nikolaus Schaller
2016-08-18 11:41       ` Marcel Holtmann
2016-08-18 12:07         ` H. Nikolaus Schaller
2016-08-18 12:07           ` H. Nikolaus Schaller
2016-08-18 12:07           ` H. Nikolaus Schaller
2016-08-18 11:02 ` Pavel Machek
2016-08-18 13:07 ` Linus Walleij [this message]
2016-08-18 17:31   ` Marcel Holtmann
2016-08-18 14:25 ` One Thousand Gnomes
2016-08-18 15:14   ` H. Nikolaus Schaller
2016-08-18 15:14     ` H. Nikolaus Schaller
2016-08-18 15:38     ` One Thousand Gnomes
2016-08-18 18:31       ` H. Nikolaus Schaller
2016-08-18 18:31         ` H. Nikolaus Schaller
2016-08-18 22:25   ` Rob Herring
2016-08-19 11:38     ` One Thousand Gnomes
2016-08-19 15:36       ` Sebastian Reichel
2016-08-18 20:29 ` Sebastian Reichel
2016-08-18 23:08   ` Rob Herring
2016-08-19  5:21     ` Sebastian Reichel
2016-08-19  7:29       ` H. Nikolaus Schaller
2016-08-19  7:49         ` Oleksij Rempel
2016-08-19  7:49           ` Oleksij Rempel
2016-08-19 17:50           ` H. Nikolaus Schaller
2016-08-19 20:19             ` Oleksij Rempel
2016-08-19 20:19               ` Oleksij Rempel
2016-08-20 13:34             ` One Thousand Gnomes
2016-08-21  7:50               ` H. Nikolaus Schaller
2016-08-21  7:50                 ` H. Nikolaus Schaller
2016-08-22 20:39                 ` Sebastian Reichel
2016-08-22 21:23                   ` H. Nikolaus Schaller
2016-08-22 21:43                     ` Arnd Bergmann
2016-08-22 22:42                     ` Sebastian Reichel
2016-08-22 22:52                       ` One Thousand Gnomes
2016-08-22 23:10                         ` Sebastian Reichel
2016-08-23  7:28                       ` H. Nikolaus Schaller
2016-08-27 12:01                     ` Michal Suchanek
2016-08-19 11:06         ` One Thousand Gnomes
2016-08-19 17:42           ` H. Nikolaus Schaller
2016-08-19 17:42             ` H. Nikolaus Schaller
2016-08-20 13:22             ` One Thousand Gnomes
2016-08-20 13:22               ` One Thousand Gnomes
2016-08-21  7:50               ` H. Nikolaus Schaller
2016-08-21  7:50                 ` H. Nikolaus Schaller
2016-08-21  7:50                 ` H. Nikolaus Schaller
2016-08-21 17:09                 ` One Thousand Gnomes
2016-08-21 18:23                   ` H. Nikolaus Schaller
2016-08-21 18:23                     ` H. Nikolaus Schaller
2016-08-22  9:09                     ` One Thousand Gnomes
2016-08-22  9:33                       ` Marcel Holtmann
2016-08-22  9:33                         ` Marcel Holtmann
2016-08-19 11:03       ` One Thousand Gnomes
2016-08-19 11:03         ` One Thousand Gnomes
2016-08-19 14:44         ` Sebastian Reichel
2016-08-22 12:37 ` Arnd Bergmann
2016-08-22 13:38   ` Rob Herring
2016-08-22 15:24     ` Arnd Bergmann
2016-08-22 15:28       ` Marcel Holtmann
2016-08-22 15:46         ` Arnd Bergmann
2016-08-22 15:45       ` One Thousand Gnomes
2016-08-22 21:07         ` Marcel Holtmann
2016-08-22 21:35           ` One Thousand Gnomes
2016-08-22 22:03           ` Sebastian Reichel
2016-08-22 22:46             ` One Thousand Gnomes
2016-08-22 23:41               ` Sebastian Reichel
2016-08-24 12:14         ` Linus Walleij
2016-08-22 16:44       ` Rob Herring
2016-08-22 17:02         ` One Thousand Gnomes
2016-08-22 17:30           ` Rob Herring
2016-08-22 17:30             ` Rob Herring
2016-08-22 17:38             ` One Thousand Gnomes
2016-08-22 21:16               ` Marcel Holtmann
2016-08-22 21:32                 ` One Thousand Gnomes
2016-08-22 22:00                   ` Pavel Machek
2016-08-22 22:54                     ` One Thousand Gnomes
2016-08-22 23:57                       ` Sebastian Reichel
2016-08-23  0:15                         ` One Thousand Gnomes
2016-08-23  0:57                           ` Sebastian Reichel
2016-08-24 13:57                             ` One Thousand Gnomes
2016-08-24 13:57                               ` One Thousand Gnomes
2016-08-24 14:29                               ` Marcel Holtmann
2016-08-24 14:29                                 ` Marcel Holtmann
2016-08-23 11:42                           ` Marcel Holtmann
2016-08-22 23:02                     ` Sebastian Reichel
2016-08-22 20:00             ` Sebastian Reichel
2016-08-22 22:00               ` Rob Herring
2016-08-22 22:00                 ` Rob Herring
2016-08-22 22:18                 ` Sebastian Reichel
2016-08-23 21:04       ` Rob Herring

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