Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933158AbdGXXG4 (ORCPT ); Mon, 24 Jul 2017 19:06:56 -0400 Received: from lelnx193.ext.ti.com ([198.47.27.77]:11911 "EHLO lelnx193.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933061AbdGXXGI (ORCPT ); Mon, 24 Jul 2017 19:06:08 -0400 From: Franklin S Cooper Jr To: , , , , , , , , , , , CC: Franklin S Cooper Jr Subject: [PATCH v2 0/4] can: Add new binding to limit bit rate used Date: Mon, 24 Jul 2017 18:05:17 -0500 Message-ID: <20170724230521.1436-1-fcooper@ti.com> X-Mailer: git-send-email 2.10.0 MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1574 Lines: 40 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