From patchwork Thu Aug 19 13:38:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Kleine-Budde X-Patchwork-Id: 500217 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,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 004DFC4320A for ; Thu, 19 Aug 2021 13:39:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DD469610FE for ; Thu, 19 Aug 2021 13:39:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240150AbhHSNkB (ORCPT ); Thu, 19 Aug 2021 09:40:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59798 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240107AbhHSNj7 (ORCPT ); Thu, 19 Aug 2021 09:39:59 -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 8D839C061756 for ; Thu, 19 Aug 2021 06:39:23 -0700 (PDT) Received: from gallifrey.ext.pengutronix.de ([2001:67c:670:201:5054:ff:fe8d:eefb] helo=bjornoya.blackshift.org) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mGiGP-0004He-T6 for netdev@vger.kernel.org; Thu, 19 Aug 2021 15:39:21 +0200 Received: from dspam.blackshift.org (localhost [127.0.0.1]) by bjornoya.blackshift.org (Postfix) with SMTP id 7BFAA66A7EA for ; Thu, 19 Aug 2021 13:39:19 +0000 (UTC) Received: from hardanger.blackshift.org (unknown [172.20.34.65]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by bjornoya.blackshift.org (Postfix) with ESMTPS id F23AC66A7D5; Thu, 19 Aug 2021 13:39:17 +0000 (UTC) Received: from blackshift.org (localhost [::1]) by hardanger.blackshift.org (OpenSMTPD) with ESMTP id ef99aad8; Thu, 19 Aug 2021 13:39:15 +0000 (UTC) From: Marc Kleine-Budde To: netdev@vger.kernel.org Cc: davem@davemloft.net, kuba@kernel.org, linux-can@vger.kernel.org, kernel@pengutronix.de, Oleksij Rempel , Rob Herring , Marc Kleine-Budde Subject: [PATCH net-next 02/22] dt-bindings: can-controller: add support for termination-gpios Date: Thu, 19 Aug 2021 15:38:53 +0200 Message-Id: <20210819133913.657715-3-mkl@pengutronix.de> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210819133913.657715-1-mkl@pengutronix.de> References: <20210819133913.657715-1-mkl@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2001:67c:670:201:5054:ff:fe8d:eefb X-SA-Exim-Mail-From: mkl@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 From: Oleksij Rempel Some boards provide GPIO controllable termination resistor. Provide binding to make use of it. Link: https://lore.kernel.org/r/20210818071232.20585-2-o.rempel@pengutronix.de Signed-off-by: Oleksij Rempel Reviewed-by: Rob Herring Signed-off-by: Marc Kleine-Budde --- .../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 ...