From patchwork Wed May 5 13:14:38 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alain Volmat X-Patchwork-Id: 431858 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, 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 AFEBAC433ED for ; Wed, 5 May 2021 13:17:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6C1C3613C4 for ; Wed, 5 May 2021 13:17:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232262AbhEENSc (ORCPT ); Wed, 5 May 2021 09:18:32 -0400 Received: from mx07-00178001.pphosted.com ([185.132.182.106]:43548 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230201AbhEENSc (ORCPT ); Wed, 5 May 2021 09:18:32 -0400 Received: from pps.filterd (m0241204.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 145DGTfT026255; Wed, 5 May 2021 15:17:22 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=selector1; bh=jXXG4PKheaqB/snWZiHmMxnRwKUHDSia16UN8hscUVc=; b=kiMskIPDM3IS6cwdsqbkz+hC+CB+G+GXlGbn/0GUXTbwfz0twueWHrbsn6nC0OMMDkr0 0gXtNNf58JBrQ7LNdydqM3mvlV1IALEmPJLQrehD8knQTyLXeBdtxrUfVTCthCVFXN33 9m8IU6MMGXRTpK3b5hq/K7ztKPtwENeKptOtIIN8MpOuIVJagaXGALa17eAIg59heUjl uvWTMuhTGldqXPy0J3jdTDMRJKlfOVc+LfvyW23alX2eY1TIcTAQpz8pjjIqnNrwZ+FJ pCLggPANkmB7SuU0dtYGUl6dOuxkh3C/K83aFbuQqEQ9G9kOTukQ7nNDvcqv8FnO6azE lQ== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 38be9amddn-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 05 May 2021 15:17:22 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 28866100034; Wed, 5 May 2021 15:17:22 +0200 (CEST) Received: from Webmail-eu.st.com (sfhdag2node3.st.com [10.75.127.6]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 13B8D2C4206; Wed, 5 May 2021 15:17:22 +0200 (CEST) Received: from localhost (10.75.127.49) by SFHDAG2NODE3.st.com (10.75.127.6) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 5 May 2021 15:17:21 +0200 From: Alain Volmat To: , CC: , , , , , , , , , , Subject: [PATCH v4 1/2] i2c: add binding to mark a bus as supporting SMBus-Alert Date: Wed, 5 May 2021 15:14:38 +0200 Message-ID: <1620220479-2647-2-git-send-email-alain.volmat@foss.st.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1620220479-2647-1-git-send-email-alain.volmat@foss.st.com> References: <1620220479-2647-1-git-send-email-alain.volmat@foss.st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.49] X-ClientProxiedBy: SFHDAG2NODE3.st.com (10.75.127.6) To SFHDAG2NODE3.st.com (10.75.127.6) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391, 18.0.761 definitions=2021-05-05_07:2021-05-05,2021-05-05 signatures=0 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Since SMBus-Alert is an optional feature of SMBUS which requires an additional pin, the smbus binding cannot be used to indicate its support. Add an additional smbus-alert binding specific for it and update the description text of smbus to avoid mentioning SMBus-Alert Signed-off-by: Alain Volmat --- Documentation/devicetree/bindings/i2c/i2c.txt | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/i2c/i2c.txt b/Documentation/devicetree/bindings/i2c/i2c.txt index df41f72afc87..b864916e087f 100644 --- a/Documentation/devicetree/bindings/i2c/i2c.txt +++ b/Documentation/devicetree/bindings/i2c/i2c.txt @@ -89,8 +89,11 @@ wants to support one of the below features, it should adapt these bindings. - smbus states that additional SMBus restrictions and features apply to this bus. - Examples of features are SMBusHostNotify and SMBusAlert. Examples of - restrictions are more reserved addresses and timeout definitions. + An example of feature is SMBusHostNotify. Examples of restrictions are + more reserved addresses and timeout definitions. + +- smbus-alert + states that the optional SMBus-Alert feature apply to this bus. Required properties (per child device) --------------------------------------