[PATCH v2 0/4] can: Add new binding to limit bit rate used

Path	csiph.com!goblin2!goblin.stu.neva.ru!peer01.am4!peer.am4.highwinds-media.com!peer02.ams1!peer.ams1.xlned.com!news.xlned.com!peer04.fr7!futter-mich.highwinds-media.com!news.highwinds-media.com!fu-berlin.de!bofh.it!news.nic.it!robomod
From	Franklin S Cooper Jr <fcooper@ti.com>
Newsgroups	linux.kernel
Subject	[PATCH v2 0/4] can: Add new binding to limit bit rate used
Date	Tue, 25 Jul 2017 01:10:03 +0200
Message-ID	<u6UE9-3ig-11@gated-at.bofh.it> (permalink)
Dkim-Signature	v=1; a=rsa-sha256; c=relaxed/simple; d=ti.com; s=ti-com-17Q1; t=1500937535; bh=TuFh/sXwmtKyikfSNdbmr/h7SVPbHH4oB6WMO8EDvg8=; h=From:To:CC:Subject:Date; b=XWdoZ2yVknX62YoGIsA5Kqy1M9AW9c1e6YMWtYGeDU85iVvoIYjW3g2lI/xq6+vKr h7Xn16lmiwy8RRdu9VoIAu5zfv85L1DN3ngu5x2OMAjetgiNjh9FbQxYphUvWo6hYT 46emfbllNKuUFNakCbC0OdzU9zbT51RvPGTwpAOs=
X-Mailer	git-send-email 2.10.0
MIME-Version	1.0
Content-Type	text/plain
Sender	robomod@news.nic.it
List-ID	<linux-kernel.vger.kernel.org>
X-Mailing-List	linux-kernel@vger.kernel.org
Approved	robomod@news.nic.it
Lines	40
Organization	linux.* mail to news gateway
X-Original-Cc	Franklin S Cooper Jr <fcooper@ti.com>
X-Original-Date	Mon, 24 Jul 2017 18:05:17 -0500
X-Original-Message-ID	<20170724230521.1436-1-fcooper@ti.com>
X-Original-Sender	linux-kernel-owner@vger.kernel.org
X-Received-Body-CRC	630092404
X-Received-Bytes	2966
Xref	csiph.com linux.kernel:1695255

Show key headers only | View raw

Add a new generic binding that CAN drivers can use to specify the max
arbitration and data bit rate supported by a transceiver. This is
useful since in some instances the maximum speeds may be limited by
the transceiver used. However, transceivers may not provide a means
to determine this limitation at runtime. Therefore, create a new binding
that mimics "fixed-link" that allows a user to hardcode the max speeds
that can be used.

Also add support for this new binding in the MCAN driver.

Note this is an optional subnode so even if a driver adds support for
parsing fixed-transceiver the user does not have to define it in their
device tree.

Version 2 changes:
Rename function
Define proper variable default
Drop unit address
Move check to changelink function
Reword commit message
Reword documentation

Franklin S Cooper Jr (4):
  can: dev: Add support for limiting configured bitrate
  can: fixed-transceiver: Add documentation for CAN fixed transceiver
    bindings
  can: m_can: Update documentation to mention new fixed transceiver
    binding
  can: m_can: Add call to of_can_transceiver_fixed

 .../bindings/net/can/fixed-transceiver.txt         | 42 +++++++++++++++
 .../devicetree/bindings/net/can/m_can.txt          | 10 ++++
 drivers/net/can/dev.c                              | 59 ++++++++++++++++++++++
 drivers/net/can/m_can/m_can.c                      |  2 +
 include/linux/can/dev.h                            |  5 ++
 5 files changed, 118 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/can/fixed-transceiver.txt

-- 
2.10.0

Back to linux.kernel | Previous | Next | Find similar | Unroll thread

Thread

[PATCH v2 0/4] can: Add new binding to limit bit rate used Franklin S Cooper Jr <fcooper@ti.com> - 2017-07-25 01:10 +0200

csiph-web