From patchwork Mon Sep 24 23:04:41 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jae Hyun Yoo X-Patchwork-Id: 10613031 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 341EB112B for ; Mon, 24 Sep 2018 23:23:23 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 30E4D296B0 for ; Mon, 24 Sep 2018 23:23:23 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2009D29725; Mon, 24 Sep 2018 23:23:23 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 1C0CC296B0 for ; Mon, 24 Sep 2018 23:23:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=x/vfMlzBjTha5WVHOnOLZXEISXuwvvNk/5nMjdP8MFI=; b=Pv0tgQt0dOlQKxm7fzG/hmVZt8 NN7ng90rZkKwBHbsZTcO+VxSydFm7tztmZAVXd0cKUnXMW/NWadFgyryTvzA4SCRI/+ACRKqo/S7k W9aPF2hQyXiCCW07S896goMW+VHObzD+o4yJF/J2UlfOuaOoO1cwJBK2cWwigK/BxSCjK2vyTMHfZ 6VRJ8PV+oWsvYKFpCHj+NDHwerXAnfSHie2CnYCKzcp8PUpCc8TdXYN253AecEX5S5sN1MU04lrKb CYzTWQSbbR+1AXysloZnBE8thssQO/zc92xrUejoR19NEn35a4wcn4tWiHYF8mkQGrZCETU5POI5D m5jDC2dg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1g4aCF-0002VR-5M; Mon, 24 Sep 2018 23:23:19 +0000 Received: from mga06.intel.com ([134.134.136.31]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1g4Zvb-000538-2Y for linux-arm-kernel@lists.infradead.org; Mon, 24 Sep 2018 23:06:12 +0000 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 24 Sep 2018 16:05:04 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,299,1534834800"; d="scan'208";a="93371994" Received: from maru.jf.intel.com ([10.54.51.77]) by orsmga001.jf.intel.com with ESMTP; 24 Sep 2018 16:04:53 -0700 From: Jae Hyun Yoo To: Brendan Higgins , Benjamin Herrenschmidt , Joel Stanley , Rob Herring , Mark Rutland , Andrew Jeffery , linux-i2c@vger.kernel.org, openbmc@lists.ozlabs.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: [PATCH i2c-next v2 1/2] dt-bindings: i2c: aspeed: Add 'idle-wait-timeout-ms' property Date: Mon, 24 Sep 2018 16:04:41 -0700 Message-Id: <20180924230442.7732-2-jae.hyun.yoo@linux.intel.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180924230442.7732-1-jae.hyun.yoo@linux.intel.com> References: <20180924230442.7732-1-jae.hyun.yoo@linux.intel.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180924_160607_217679_5878A363 X-CRM114-Status: GOOD ( 12.08 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Vernon Mauery , Jae Hyun Yoo , Jarkko Nikula , James Feist MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP This commit adds 'idle-wait-timeout-ms' property which can be used for bus idle waiting logic in multi-master environment. Signed-off-by: Jae Hyun Yoo --- Documentation/devicetree/bindings/i2c/i2c-aspeed.txt | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/i2c/i2c-aspeed.txt b/Documentation/devicetree/bindings/i2c/i2c-aspeed.txt index 8fbd8633a387..42ecaaf67172 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-aspeed.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-aspeed.txt @@ -13,9 +13,13 @@ Required Properties: - interrupts : interrupt number Optional Properties: -- bus-frequency : frequency of the bus clock in Hz defaults to 100 kHz when not - specified -- multi-master : states that there is another master active on this bus. +- bus-frequency : frequency of the bus clock in Hz defaults to 100 kHz + when not specified +- multi-master : states that there is another master active on this + bus. +- idle-wait-timeout-ms : bus idle waiting timeout in milliseconds when + multi-master is set, defaults to 100 ms when not + specified. Example: