From patchwork Mon Jun 24 12:01:59 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Poddar, Sourav" X-Patchwork-Id: 2770681 Return-Path: X-Original-To: patchwork-spi-devel-general@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 7FE049F3A0 for ; Mon, 24 Jun 2013 12:02:27 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 46225201E1 for ; Mon, 24 Jun 2013 12:02:26 +0000 (UTC) Received: from lists.sourceforge.net (lists.sourceforge.net [216.34.181.88]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 62CF0201CC for ; Mon, 24 Jun 2013 12:02:21 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=sfs-ml-4.v29.ch3.sourceforge.com) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1Ur5TQ-0007u0-Lh; Mon, 24 Jun 2013 12:02:20 +0000 Received: from sog-mx-1.v43.ch3.sourceforge.com ([172.29.43.191] helo=mx.sourceforge.net) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1Ur5TP-0007ts-O6 for spi-devel-general@lists.sourceforge.net; Mon, 24 Jun 2013 12:02:19 +0000 Received-SPF: pass (sog-mx-1.v43.ch3.sourceforge.com: domain of ti.com designates 192.94.94.41 as permitted sender) client-ip=192.94.94.41; envelope-from=sourav.poddar@ti.com; helo=bear.ext.ti.com; Received: from bear.ext.ti.com ([192.94.94.41]) by sog-mx-1.v43.ch3.sourceforge.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.76) id 1Ur5TN-0006xt-V2 for spi-devel-general@lists.sourceforge.net; Mon, 24 Jun 2013 12:02:19 +0000 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id r5OC23nS013547; Mon, 24 Jun 2013 07:02:03 -0500 Received: from DFLE73.ent.ti.com (dfle73.ent.ti.com [128.247.5.110]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id r5OC23he002180; Mon, 24 Jun 2013 07:02:03 -0500 Received: from dlelxv22.itg.ti.com (172.17.1.197) by DFLE73.ent.ti.com (128.247.5.110) with Microsoft SMTP Server id 14.2.342.3; Mon, 24 Jun 2013 07:02:02 -0500 Received: from a0131647.apr.dhcp.ti.com (a0131647.apr.dhcp.ti.com [172.24.145.168]) by dlelxv22.itg.ti.com (8.13.8/8.13.8) with ESMTP id r5OC1xMK016817; Mon, 24 Jun 2013 07:02:00 -0500 From: Sourav Poddar To: , Subject: [PATCHv12] spi: omap2-mcspi: add generic DMA request support to the DT binding Date: Mon, 24 Jun 2013 17:31:59 +0530 Message-ID: <1372075319-21680-1-git-send-email-sourav.poddar@ti.com> X-Mailer: git-send-email 1.7.1 MIME-Version: 1.0 X-Spam-Score: -2.6 (--) X-Headers-End: 1Ur5TN-0006xt-V2 Cc: joelagnel@ti.com, linux-doc@vger.kernel.org, devicetree-discuss@lists.ozlabs.org, nsekhar@ti.com, balbi@rocket1.ti.cm, spi-devel-general@lists.sourceforge.net, linux-omap@vger.kernel.org X-BeenThere: spi-devel-general@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: Linux SPI core/device drivers discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: spi-devel-general-bounces@lists.sourceforge.net X-Spam-Status: No, score=-8.0 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, 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 From: Matt Porter The binding definition is based on the generic DMA request binding Signed-off-by: Matt Porter Signed-off-by: Joel A Fernandes Signed-off-by: Sourav Poddar --- Documentation/devicetree/bindings/spi/omap-spi.txt | 27 +++++++++++++++++++- 1 files changed, 26 insertions(+), 1 deletions(-) diff --git a/Documentation/devicetree/bindings/spi/omap-spi.txt b/Documentation/devicetree/bindings/spi/omap-spi.txt index 938809c..4c85c4c 100644 --- a/Documentation/devicetree/bindings/spi/omap-spi.txt +++ b/Documentation/devicetree/bindings/spi/omap-spi.txt @@ -10,7 +10,18 @@ Required properties: input. The default is D0 as input and D1 as output. -Example: +Optional properties: +- dmas: List of DMA specifiers with the controller specific format + as described in the generic DMA client binding. A tx and rx + specifier is required for each chip select. +- dma-names: List of DMA request names. These strings correspond + 1:1 with the DMA specifiers listed in dmas. The string naming + is to be "rxN" and "txN" for RX and TX requests, + respectively, where N equals the chip select number. + +Examples: + +[hwmod populated DMA resources] mcspi1: mcspi@1 { #address-cells = <1>; @@ -20,3 +31,17 @@ mcspi1: mcspi@1 { ti,spi-num-cs = <4>; }; +[generic DMA request binding] + +mcspi1: mcspi@1 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "ti,omap4-mcspi"; + ti,hwmods = "mcspi1"; + ti,spi-num-cs = <2>; + dmas = <&edma 42 + &edma 43 + &edma 44 + &edma 45>; + dma-names = "tx0", "rx0", "tx1", "rx1"; +};