From patchwork Sat Oct 11 10:57:11 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: yao yuan X-Patchwork-Id: 5068831 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 598329F30B for ; Sat, 11 Oct 2014 11:01:01 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 81130201EC for ; Sat, 11 Oct 2014 11:01:00 +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 377E5201C0 for ; Sat, 11 Oct 2014 11:00:59 +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 1XcuNx-00062L-UE; Sat, 11 Oct 2014 10:58:53 +0000 Received: from mail-bl2on0117.outbound.protection.outlook.com ([65.55.169.117] helo=na01-bl2-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1XcuNT-0005tv-9F for linux-arm-kernel@lists.infradead.org; Sat, 11 Oct 2014 10:58:24 +0000 Received: from BN3PR0301CA0079.namprd03.prod.outlook.com (25.160.152.175) by BLUPR03MB376.namprd03.prod.outlook.com (10.141.75.150) with Microsoft SMTP Server (TLS) id 15.0.1049.19; Sat, 11 Oct 2014 10:58:01 +0000 Received: from BY2FFO11FD015.protection.gbl (2a01:111:f400:7c0c::113) by BN3PR0301CA0079.outlook.office365.com (2a01:111:e400:401e::47) with Microsoft SMTP Server (TLS) id 15.0.1049.19 via Frontend Transport; Sat, 11 Oct 2014 10:58:01 +0000 Received: from az84smr01.freescale.net (192.88.158.2) by BY2FFO11FD015.mail.protection.outlook.com (10.1.14.131) with Microsoft SMTP Server (TLS) id 15.0.1039.16 via Frontend Transport; Sat, 11 Oct 2014 10:58:00 +0000 Received: from titan.ap.freescale.net ([10.192.208.233]) by az84smr01.freescale.net (8.14.3/8.14.0) with ESMTP id s9BAvgHC001560; Sat, 11 Oct 2014 03:57:57 -0700 From: Yuan Yao To: , Subject: [PATCH v9 2/3] Documentation:add DMA support for freescale i2c driver Date: Sat, 11 Oct 2014 18:57:11 +0800 Message-ID: <1413025032-14958-3-git-send-email-yao.yuan@freescale.com> X-Mailer: git-send-email 2.1.0.27.g96db324 In-Reply-To: <1413025032-14958-1-git-send-email-yao.yuan@freescale.com> References: <1413025032-14958-1-git-send-email-yao.yuan@freescale.com> X-EOPAttributedMessage: 0 X-Forefront-Antispam-Report: CIP:192.88.158.2; CTRY:US; IPV:CAL; IPV:NLI; EFV:NLI; SFV:NSPM; SFS:(10019020)(6009001)(189002)(199003)(104016003)(107046002)(95666004)(26826002)(21056001)(105606002)(4396001)(104166001)(50226001)(229853001)(33646002)(76176999)(50986999)(97736003)(93916002)(86362001)(92566001)(106466001)(81156004)(92726001)(31966008)(88136002)(36756003)(84676001)(77156001)(64706001)(20776003)(46102003)(85306004)(47776003)(80022003)(48376002)(99396003)(102836001)(62966002)(50466002)(69596002)(68736004)(87936001)(87286001)(120916001)(89996001)(85852003)(76482002)(19580405001)(44976005)(6806004)(19580395003); DIR:OUT; SFP:1102; SCL:1; SRVR:BLUPR03MB376; H:az84smr01.freescale.net; FPR:; MLV:ovrnspm; 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:BLUPR03MB376; X-Exchange-Antispam-Report-Test: UriScan:; X-Forefront-PRVS: 0361212EA8 Received-SPF: Fail (protection.outlook.com: domain of freescale.com does not designate 192.88.158.2 as permitted sender) receiver=protection.outlook.com; client-ip=192.88.158.2; helo=az84smr01.freescale.net; Authentication-Results: spf=fail (sender IP is 192.88.158.2) smtp.mailfrom=yao.yuan@freescale.com; X-OriginatorOrg: freescale.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141011_035823_493012_1D0400AE X-CRM114-Status: UNSURE ( 7.13 ) 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=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, 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"; +};