From patchwork Tue Jan 15 20:32:53 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Porter X-Patchwork-Id: 1981141 Return-Path: X-Original-To: patchwork-davinci@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from bear.ext.ti.com (bear.ext.ti.com [192.94.94.41]) by patchwork2.kernel.org (Postfix) with ESMTP id EEFE5DF264 for ; Tue, 15 Jan 2013 20:33:32 +0000 (UTC) Received: from dlelxv30.itg.ti.com ([172.17.2.17]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id r0FKXWgm012666 for ; Tue, 15 Jan 2013 14:33:32 -0600 Received: from DLEE74.ent.ti.com (dlee74.ent.ti.com [157.170.170.8]) by dlelxv30.itg.ti.com (8.13.8/8.13.8) with ESMTP id r0FKXW9V009639 for ; Tue, 15 Jan 2013 14:33:32 -0600 Received: from dlelxv23.itg.ti.com (172.17.1.198) by DLEE74.ent.ti.com (157.170.170.8) with Microsoft SMTP Server id 14.1.323.3; Tue, 15 Jan 2013 14:33:32 -0600 Received: from linux.omap.com (dlelxs01.itg.ti.com [157.170.227.31]) by dlelxv23.itg.ti.com (8.13.8/8.13.8) with ESMTP id r0FKXWT0019736 for ; Tue, 15 Jan 2013 14:33:32 -0600 Received: from linux.omap.com (localhost [127.0.0.1]) by linux.omap.com (Postfix) with ESMTP id 4D5FA80626 for ; Tue, 15 Jan 2013 14:33:32 -0600 (CST) X-Original-To: davinci-linux-open-source@linux.davincidsp.com Delivered-To: davinci-linux-open-source@linux.davincidsp.com Received: from dflp51.itg.ti.com (dflp51.itg.ti.com [128.247.22.94]) by linux.omap.com (Postfix) with ESMTP id 6CD618062A for ; Tue, 15 Jan 2013 14:28:47 -0600 (CST) Received: from medina.ext.ti.com (medina.ext.ti.com [192.91.81.31]) by dflp51.itg.ti.com (8.13.7/8.13.8) with ESMTP id r0FKSlZh023617 for ; Tue, 15 Jan 2013 14:28:47 -0600 (CST) Received: from mail6.bemta12.messagelabs.com (mail6.bemta12.messagelabs.com [216.82.250.247]) by medina.ext.ti.com (8.13.7/8.13.7) with ESMTP id r0FKSkgd019026 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Tue, 15 Jan 2013 14:28:46 -0600 Received: from [216.82.250.51:17754] by server-13.bemta-12.messagelabs.com id 02/D9-13815-EFBB5F05; Tue, 15 Jan 2013 20:28:46 +0000 X-Env-Sender: ohiomdp@gmail.com X-Msg-Ref: server-9.tower-108.messagelabs.com!1358281724!14011567!1 X-Originating-IP: [209.85.216.169] X-SpamReason: No, hits=0.0 required=7.0 tests= X-StarScan-Received: X-StarScan-Version: 6.6.1.8; banners=-,-,- X-VirusChecked: Checked Received: (qmail 5594 invoked from network); 15 Jan 2013 20:28:45 -0000 Received: from mail-qc0-f169.google.com (HELO mail-qc0-f169.google.com) (209.85.216.169) by server-9.tower-108.messagelabs.com with RC4-SHA encrypted SMTP; 15 Jan 2013 20:28:45 -0000 Received: by mail-qc0-f169.google.com with SMTP id t2so368257qcq.28 for ; Tue, 15 Jan 2013 12:28:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:sender:from:to:cc:subject:date:message-id:x-mailer :in-reply-to:references; bh=g1FYtj8i/20E78R3dvOiFGUZpmxI205UOOBV59rtrQU=; b=bt1On/K0NVg0TKF5h0fVr5avGOH9FpNZUv4efpIqbx7AVtyyrthTyqukwL0SbZLQNQ wwt4ehkTMKok/N3R2fpHZA1jEDO/aOykMnPw+MkVHa2T6EfVbP6BdsNtQof7mmA3rdx5 USIikTIUw3aGNpYefQuhihY6qQi+oBV+7TFVe0ftzsMTC9pEnWvmgtCXhUFoprrZSaig 7t5NtlIsdETav4EQwn1nT8oLSYTNbLpHOp97i9SD9emxLKmU/QJgXHthqOKj2tgaL2Xm UkSMy59pBBc0Us2jZj1/MLSpeZT8aZ4s731mQug//pto98R+TUDBVNxdw85PypkbScp8 XZHw== X-Received: by 10.49.127.180 with SMTP id nh20mr92017634qeb.19.1358281724275; Tue, 15 Jan 2013 12:28:44 -0800 (PST) Received: from beef.ohporter.com (cpe-24-166-64-7.neo.res.rr.com. [24.166.64.7]) by mx.google.com with ESMTPS id gw9sm4308048qab.10.2013.01.15.12.28.40 (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 15 Jan 2013 12:28:42 -0800 (PST) From: Matt Porter To: Tony Lindgren , Sekhar Nori , Grant Likely , Mark Brown , Benoit Cousson , Russell King , Vinod Koul , Rob Landley , Chris Ball Subject: [PATCH v5 13/14] spi: omap2-mcspi: add generic DMA request support to the DT binding Date: Tue, 15 Jan 2013 15:32:53 -0500 Message-ID: <1358281974-8411-14-git-send-email-mporter@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1358281974-8411-1-git-send-email-mporter@ti.com> References: <1358281974-8411-1-git-send-email-mporter@ti.com> CC: Linux DaVinci Kernel List , Arnd Bergmann , Linux Documentation List , Devicetree Discuss , Linux MMC List , Linux Kernel Mailing List , Rob Herring , Dan Williams , Linux SPI Devel List , Linux OMAP List , Linux ARM Kernel List X-BeenThere: davinci-linux-open-source@linux.davincidsp.com X-Mailman-Version: 2.1.12 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: Errors-To: davinci-linux-open-source-bounces+patchwork-davinci=patchwork.kernel.org@linux.davincidsp.com The binding definition is based on the generic DMA request binding. Signed-off-by: Matt Porter --- Documentation/devicetree/bindings/spi/omap-spi.txt | 28 +++++++++++++++++++- 1 file changed, 27 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/spi/omap-spi.txt b/Documentation/devicetree/bindings/spi/omap-spi.txt index 938809c..3bd8eed 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 controller phandle and DMA request ordered + pairs. One tx and one rx pair is required for each chip + select. +- dma-names: List of DMA request names. These strings correspond + 1:1 with the ordered pairs 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 +31,18 @@ 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"; +}; +