From patchwork Fri Apr 4 02:41:12 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yao Yuan X-Patchwork-Id: 336813 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 160851400BE for ; Fri, 4 Apr 2014 14:24:47 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751215AbaDDDYd (ORCPT ); Thu, 3 Apr 2014 23:24:33 -0400 Received: from tx2ehsobe003.messaging.microsoft.com ([65.55.88.13]:42749 "EHLO tx2outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751660AbaDDDYZ (ORCPT ); Thu, 3 Apr 2014 23:24:25 -0400 Received: from mail123-tx2-R.bigfish.com (10.9.14.251) by TX2EHSOBE007.bigfish.com (10.9.40.27) with Microsoft SMTP Server id 14.1.225.22; Fri, 4 Apr 2014 03:24:22 +0000 Received: from mail123-tx2 (localhost [127.0.0.1]) by mail123-tx2-R.bigfish.com (Postfix) with ESMTP id 7F7834E0138; Fri, 4 Apr 2014 03:24:22 +0000 (UTC) X-Forefront-Antispam-Report: CIP:70.37.183.190; KIP:(null); UIP:(null); IPV:NLI; H:mail.freescale.net; RD:none; EFVD:NLI X-SpamScore: 0 X-BigFish: VS0(zzzz1f42h2148h1ee6h1de0h1fdah2073h2146h1202h1e76h2189h1d1ah1d2ah21bch1fc6h208chzz1de098h8275bh1de097hz2dh2a8h839hd24he5bhf0ah1288h12a5h12a9h12bdh12e5h137ah139eh13b6h1441h1504h1537h162dh1631h1758h1898h18e1h1946h19b5h1ad9h1b0ah1b2fh2222h224fh1fb3h1d0ch1d2eh1d3fh1dfeh1dffh1e23h1fe8h1ff5h2218h2216h226dh22d0h24afh2327h2336h2438h2461h2487h24d7h2516h2545h255eh25cch25f6h2605h268bh26d3h1155h) Received: from mail123-tx2 (localhost.localdomain [127.0.0.1]) by mail123-tx2 (MessageSwitch) id 1396581861125209_27877; Fri, 4 Apr 2014 03:24:21 +0000 (UTC) Received: from TX2EHSMHS010.bigfish.com (unknown [10.9.14.243]) by mail123-tx2.bigfish.com (Postfix) with ESMTP id 187DB320056; Fri, 4 Apr 2014 03:24:21 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by TX2EHSMHS010.bigfish.com (10.9.99.110) with Microsoft SMTP Server (TLS) id 14.16.227.3; Fri, 4 Apr 2014 03:24:21 +0000 Received: from tx30smr01.am.freescale.net (10.81.153.31) by 039-SN1MMR1-003.039d.mgd.msft.net (10.84.1.16) with Microsoft SMTP Server (TLS) id 14.3.158.2; Fri, 4 Apr 2014 03:24:22 +0000 Received: from rock.am.freescale.net (rock.ap.freescale.net [10.193.20.106]) by tx30smr01.am.freescale.net (8.14.3/8.14.0) with ESMTP id s343OA0u003738; Thu, 3 Apr 2014 20:24:19 -0700 From: Yuan Yao To: , CC: , , , , Subject: [PATCH v4 2/2] Documentation:add DMA support for freescale i2c driver Date: Fri, 4 Apr 2014 10:41:12 +0800 Message-ID: <1396579272-19542-3-git-send-email-yao.yuan@freescale.com> X-Mailer: git-send-email 1.8.0 In-Reply-To: <1396579272-19542-1-git-send-email-yao.yuan@freescale.com> References: <1396579272-19542-1-git-send-email-yao.yuan@freescale.com> MIME-Version: 1.0 X-OriginatorOrg: freescale.com X-FOPE-CONNECTOR: Id%0$Dn%*$RO%0$TLS%0$FQDN%$TlsDn% Sender: linux-i2c-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org 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"; +};