From patchwork Wed Jul 23 08:24:43 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: yao yuan X-Patchwork-Id: 4609451 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 DD5AEC0514 for ; Wed, 23 Jul 2014 09:16:37 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 59882201C0 for ; Wed, 23 Jul 2014 09:16:36 +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 9FA44201BB for ; Wed, 23 Jul 2014 09:16:31 +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 1X9sbE-0008VN-Qf; Wed, 23 Jul 2014 09:12:36 +0000 Received: from mail-bn1lp0145.outbound.protection.outlook.com ([207.46.163.145] helo=na01-bn1-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1X9sb5-0008MN-D8 for linux-arm-kernel@lists.infradead.org; Wed, 23 Jul 2014 09:12:28 +0000 Received: from BY2PR03CA046.namprd03.prod.outlook.com (10.141.249.19) by DM2PR03MB573.namprd03.prod.outlook.com (10.141.83.28) with Microsoft SMTP Server (TLS) id 15.0.990.7; Wed, 23 Jul 2014 09:12:03 +0000 Received: from BY2FFO11FD020.protection.gbl (2a01:111:f400:7c0c::157) by BY2PR03CA046.outlook.office365.com (2a01:111:e400:2c5d::19) with Microsoft SMTP Server (TLS) id 15.0.995.14 via Frontend Transport; Wed, 23 Jul 2014 09:12:02 +0000 Received: from az84smr01.freescale.net (192.88.158.2) by BY2FFO11FD020.mail.protection.outlook.com (10.1.14.137) with Microsoft SMTP Server (TLS) id 15.0.980.11 via Frontend Transport; Wed, 23 Jul 2014 09:12:02 +0000 Received: from rock.ap.freescale.net (rock.ap.freescale.net [10.193.20.106]) by az84smr01.freescale.net (8.14.3/8.14.0) with ESMTP id s6N9BiJJ011657; Wed, 23 Jul 2014 02:11:59 -0700 From: Yuan Yao To: , Subject: [PATCH v5 2/2] Documentation:add DMA support for freescale i2c driver Date: Wed, 23 Jul 2014 16:24:43 +0800 Message-ID: <1406103883-3572-3-git-send-email-yao.yuan@freescale.com> X-Mailer: git-send-email 1.8.0 In-Reply-To: <1406103883-3572-1-git-send-email-yao.yuan@freescale.com> References: <1406103883-3572-1-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:(6009001)(199002)(189002)(77982001)(80022001)(86362001)(81542001)(47776003)(81156004)(92566001)(46102001)(95666004)(105606002)(85306003)(64706001)(106466001)(74502001)(229853001)(20776003)(74662001)(93916002)(31966008)(50226001)(76176999)(85852003)(48376002)(83072002)(33646002)(4396001)(79102001)(69596002)(36756003)(77156001)(107046002)(6806004)(19580395003)(83322001)(44976005)(19580405001)(102836001)(104166001)(84676001)(50986999)(88136002)(89996001)(99396002)(81342001)(92726001)(68736004)(76482001)(87936001)(104016003)(87286001)(50466002)(62966002)(97736001)(21056001)(26826002); DIR:OUT; SFP:; SCL:1; SRVR:DM2PR03MB573; H:az84smr01.freescale.net; FPR:; MLV:ovrnspm; PTR:InfoDomainNonexistent; MX:1; LANG:en; MIME-Version: 1.0 X-Microsoft-Antispam: BCL:0;PCL:0;RULEID: X-Forefront-PRVS: 028166BF91 Received-SPF: Fail (: domain of freescale.com does not designate 192.88.158.2 as permitted sender) receiver=; 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-20140723_021227_616602_5B9A2B99 X-CRM114-Status: UNSURE ( 7.29 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.0 (/) Cc: mark.rutland@arm.com, shawn.guo@linaro.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-i2c@vger.kernel.org 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,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"; +};