From patchwork Tue Nov 18 10:31:06 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: yao yuan X-Patchwork-Id: 5327131 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id D1582C11AD for ; Tue, 18 Nov 2014 10:35:29 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 0CF1B2010C for ; Tue, 18 Nov 2014 10:35:29 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1C63620176 for ; Tue, 18 Nov 2014 10:35:28 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Xqg5r-0004VS-4c; Tue, 18 Nov 2014 10:33:07 +0000 Received: from mail-bn1bn0104.outbound.protection.outlook.com ([157.56.110.104] helo=na01-bn1-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Xqg5f-0004Ri-An for linux-arm-kernel@lists.infradead.org; Tue, 18 Nov 2014 10:32:55 +0000 Received: from CO2PR03CA0039.namprd03.prod.outlook.com (10.141.194.166) by BY2PR03MB379.namprd03.prod.outlook.com (10.242.237.21) with Microsoft SMTP Server (TLS) id 15.1.16.15; Tue, 18 Nov 2014 10:32:32 +0000 Received: from BY2FFO11FD045.protection.gbl (2a01:111:f400:7c0c::159) by CO2PR03CA0039.outlook.office365.com (2a01:111:e400:1414::38) with Microsoft SMTP Server (TLS) id 15.1.16.15 via Frontend Transport; Tue, 18 Nov 2014 10:32:31 +0000 Received: from tx30smr01.am.freescale.net (192.88.168.50) by BY2FFO11FD045.mail.protection.outlook.com (10.1.15.177) with Microsoft SMTP Server (TLS) id 15.1.6.13 via Frontend Transport; Tue, 18 Nov 2014 10:32:31 +0000 Received: from titan.ap.freescale.net ([10.192.208.233]) by tx30smr01.am.freescale.net (8.14.3/8.14.0) with ESMTP id sAIAWIe7019604; Tue, 18 Nov 2014 03:32:27 -0700 From: Yuan Yao To: , Subject: [PATCH v11 2/3] Documentation:add DMA support for freescale i2c driver Date: Tue, 18 Nov 2014 18:31:06 +0800 Message-ID: <1416306667-15673-3-git-send-email-yao.yuan@freescale.com> X-Mailer: git-send-email 2.1.0.27.g96db324 In-Reply-To: <1416306667-15673-1-git-send-email-yao.yuan@freescale.com> References: <1416306667-15673-1-git-send-email-yao.yuan@freescale.com> X-EOPAttributedMessage: 0 X-Forefront-Antispam-Report: CIP:192.88.168.50; CTRY:US; IPV:NLI; EFV:NLI; SFV:NSPM; SFS:(10019020)(6009001)(189002)(199003)(106466001)(104016003)(31966008)(105606002)(62966003)(77156002)(36756003)(99396003)(120916001)(102836001)(95666004)(46102003)(229853001)(107046002)(104166001)(33646002)(50226001)(92726001)(93916002)(92566001)(84676001)(87936001)(86362001)(4396001)(50466002)(48376002)(87286001)(21056001)(89996001)(97736003)(88136002)(50986999)(47776003)(20776003)(68736004)(6806004)(19580395003)(64706001)(19580405001)(44976005)(76176999); DIR:OUT; SFP:1102; SCL:1; SRVR:BY2PR03MB379; H:tx30smr01.am.freescale.net; FPR:; MLV:sfv; PTR:InfoDomainNonexistent; MX:1; A:1; LANG:en; MIME-Version: 1.0 X-Microsoft-Antispam: UriScan:; X-Microsoft-Antispam: BCL:0;PCL:0;RULEID:;SRVR:BY2PR03MB379; X-Exchange-Antispam-Report-Test: UriScan:; X-Exchange-Antispam-Report-CFA-Test: BCL:0;PCL:0;RULEID:;SRVR:BY2PR03MB379; X-Forefront-PRVS: 039975700A Received-SPF: Fail (protection.outlook.com: domain of freescale.com does not designate 192.88.168.50 as permitted sender) receiver=protection.outlook.com; client-ip=192.88.168.50; helo=tx30smr01.am.freescale.net; Authentication-Results: spf=fail (sender IP is 192.88.168.50) smtp.mailfrom=yao.yuan@freescale.com; X-Exchange-Antispam-Report-CFA-Test: BCL:0;PCL:0;RULEID:;SRVR:BY2PR03MB379; X-OriginatorOrg: freescale.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141118_023255_567198_9E2CBC75 X-CRM114-Status: UNSURE ( 7.42 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.0 (/) Cc: mark.rutland@arm.com, linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, fugang.duan@freescale.com, shawn.guo@linaro.org, linux-arm-kernel@lists.infradead.org, LW@KARO-electronics.de X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_LOW, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add i2c dts node properties for eDMA support, them depend on the eDMA driver. Signed-off-by: Yuan Yao --- Documentation/devicetree/bindings/i2c/i2c-imx.txt | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/Documentation/devicetree/bindings/i2c/i2c-imx.txt b/Documentation/devicetree/bindings/i2c/i2c-imx.txt index 4a8513e..52d37fd 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-imx.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-imx.txt @@ -11,6 +11,8 @@ Required properties: Optional properties: - clock-frequency : Constains desired I2C/HS-I2C bus clock frequency in Hz. The absence of the propoerty indicates the default frequency 100 kHz. +- dmas: A list of two dma specifiers, one for each entry in dma-names. +- dma-names: should contain "tx" and "rx". Examples: @@ -26,3 +28,12 @@ i2c@70038000 { /* HS-I2C on i.MX51 */ interrupts = <64>; clock-frequency = <400000>; }; + +i2c0: i2c@40066000 { /* i2c0 on vf610 */ + compatible = "fsl,vf610-i2c"; + reg = <0x40066000 0x1000>; + interrupts =<0 71 0x04>; + dmas = <&edma0 0 50>, + <&edma0 0 51>; + dma-names = "rx","tx"; +};