From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752749AbdHJBAT (ORCPT ); Wed, 9 Aug 2017 21:00:19 -0400 Received: from lelnx193.ext.ti.com ([198.47.27.77]:23973 "EHLO lelnx193.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752349AbdHJBAK (ORCPT ); Wed, 9 Aug 2017 21:00:10 -0400 From: Franklin S Cooper Jr To: , , , , , , , , , , , CC: Franklin S Cooper Jr Subject: [PATCH v4 3/4] dt-bindings: can: m_can: Document new can transceiver binding Date: Wed, 9 Aug 2017 19:59:15 -0500 Message-ID: <20170810005916.27163-4-fcooper@ti.com> X-Mailer: git-send-email 2.9.4.dirty In-Reply-To: <20170810005916.27163-1-fcooper@ti.com> References: <20170810005916.27163-1-fcooper@ti.com> MIME-Version: 1.0 Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add information regarding can-transceiver binding. This is especially important for MCAN since the IP allows CAN FD mode to run significantly faster than what most transceivers are capable of. Signed-off-by: Franklin S Cooper Jr --- Drop unit address. Switch from using fixed-transceiver to can-transceiver Indicate that can-transceiver is an optional subnode not a property. Documentation/devicetree/bindings/net/can/m_can.txt | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/Documentation/devicetree/bindings/net/can/m_can.txt b/Documentation/devicetree/bindings/net/can/m_can.txt index 9e33177..ee90aac 100644 --- a/Documentation/devicetree/bindings/net/can/m_can.txt +++ b/Documentation/devicetree/bindings/net/can/m_can.txt @@ -43,6 +43,11 @@ Required properties: Please refer to 2.4.1 Message RAM Configuration in Bosch M_CAN user manual for details. +Optional Subnode: +- can-transceiver : Can-transceiver subnode describing maximum speed + that can be used for CAN/CAN-FD modes. See + Documentation/devicetree/bindings/net/can/can-transceiver.txt + for details. Example: SoC dtsi: m_can1: can@020e8000 { @@ -64,4 +69,8 @@ Board dts: pinctrl-names = "default"; pinctrl-0 = <&pinctrl_m_can1>; status = "enabled"; + + can-transceiver@ { + max-bitrate = <5000000>; + }; }; -- 2.9.4.dirty