From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 A2506C433E1 for ; Wed, 1 Jul 2020 21:48:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7913E2082F for ; Wed, 1 Jul 2020 21:48:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b="hVYr7emw" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727867AbgGAVsi (ORCPT ); Wed, 1 Jul 2020 17:48:38 -0400 Received: from www.zeus03.de ([194.117.254.33]:57712 "EHLO mail.zeus03.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727853AbgGAVsi (ORCPT ); Wed, 1 Jul 2020 17:48:38 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple; d=sang-engineering.com; h= from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; s=k1; bh=lV4rVEU06zzJo6BqacCA+LQtCQz l4u3O5dvm7O9wVH8=; b=hVYr7emwsPHwtsEy8tCKkz2k5OsarQwkvNrtArv2KCw ZgrXs/ETDWqIqefzbzUolHrFr3yAdPe625VcAOoZt6bx/7RHNsMXsdKgZ1aDTLUx T/1x5nxKN8Dm75vmvEsaxTuZILlDWpgiOW8AjH0xq6d7yc9kVYMKGUnfoNK0BV0o = Received: (qmail 678364 invoked from network); 1 Jul 2020 23:48:35 +0200 Received: by mail.zeus03.de with ESMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 1 Jul 2020 23:48:35 +0200 X-UD-Smtp-Session: l3s3148p1@/XICQWipVt8gAwDPXwRGAHjapuWXvfu/ From: Wolfram Sang To: linux-i2c@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, Alain Volmat , Rob Herring , Wolfram Sang Subject: [PATCH] i2c: add binding to mark a bus as SMBus Date: Wed, 1 Jul 2020 23:48:30 +0200 Message-Id: <20200701214830.3174-1-wsa+renesas@sang-engineering.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-i2c-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org SMBus is largely compatible with I2C but there are some specifics. In case we need them on a bus, we can now use this new binding. Signed-off-by: Wolfram Sang --- Documentation/devicetree/bindings/i2c/i2c.txt | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/i2c/i2c.txt b/Documentation/devicetree/bindings/i2c/i2c.txt index 438ae123107e..d1f8cf3bd236 100644 --- a/Documentation/devicetree/bindings/i2c/i2c.txt +++ b/Documentation/devicetree/bindings/i2c/i2c.txt @@ -77,6 +77,11 @@ wants to support one of the below features, it should adapt these bindings. this information to detect a stalled bus more reliably, for example. Can not be combined with 'multi-master'. +- 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. + Required properties (per child device) -------------------------------------- -- 2.27.0