From patchwork Wed Aug 18 07:12:30 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oleksij Rempel X-Patchwork-Id: 499576 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1F166C43214 for ; Wed, 18 Aug 2021 07:12:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 09E626108D for ; Wed, 18 Aug 2021 07:12:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239513AbhHRHNZ (ORCPT ); Wed, 18 Aug 2021 03:13:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59816 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239251AbhHRHNQ (ORCPT ); Wed, 18 Aug 2021 03:13:16 -0400 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3977DC0613D9 for ; Wed, 18 Aug 2021 00:12:42 -0700 (PDT) Received: from dude.hi.pengutronix.de ([2001:67c:670:100:1d::7]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mGFkY-00050H-Sr; Wed, 18 Aug 2021 09:12:34 +0200 Received: from ore by dude.hi.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1mGFkY-0005NZ-K8; Wed, 18 Aug 2021 09:12:34 +0200 From: Oleksij Rempel To: Wolfgang Grandegger , Marc Kleine-Budde , "David S. Miller" , Jakub Kicinski , Rob Herring Cc: Oleksij Rempel , linux-can@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de, David Jander Subject: [PATCH v3 1/3] dt-bindings: can-controller: add support for termination-gpios Date: Wed, 18 Aug 2021 09:12:30 +0200 Message-Id: <20210818071232.20585-2-o.rempel@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210818071232.20585-1-o.rempel@pengutronix.de> References: <20210818071232.20585-1-o.rempel@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::7 X-SA-Exim-Mail-From: ore@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: netdev@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Some boards provide GPIO controllable termination resistor. Provide binding to make use of it. Signed-off-by: Oleksij Rempel Reviewed-by: Rob Herring --- .../devicetree/bindings/net/can/can-controller.yaml | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/Documentation/devicetree/bindings/net/can/can-controller.yaml b/Documentation/devicetree/bindings/net/can/can-controller.yaml index 9cf2ae097156..1f0e98051074 100644 --- a/Documentation/devicetree/bindings/net/can/can-controller.yaml +++ b/Documentation/devicetree/bindings/net/can/can-controller.yaml @@ -13,6 +13,15 @@ properties: $nodename: pattern: "^can(@.*)?$" + termination-gpios: + description: GPIO pin to enable CAN bus termination. + maxItems: 1 + + termination-ohms: + description: The resistance value of the CAN bus termination resistor. + minimum: 1 + maximum: 65535 + additionalProperties: true ...