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: 1980691 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id EB9EDDF2F3 for ; Tue, 15 Jan 2013 20:29:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757253Ab3AOU2s (ORCPT ); Tue, 15 Jan 2013 15:28:48 -0500 Received: from mail-qc0-f172.google.com ([209.85.216.172]:61534 "EHLO mail-qc0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755769Ab3AOU2p (ORCPT ); Tue, 15 Jan 2013 15:28:45 -0500 Received: by mail-qc0-f172.google.com with SMTP id b25so361753qca.17 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 Cc: Devicetree Discuss , Linux OMAP List , Linux ARM Kernel List , Linux DaVinci Kernel List , Linux Kernel Mailing List , Linux Documentation List , Linux MMC List , Linux SPI Devel List , Arnd Bergmann , Dan Williams , Rob Herring 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> Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org 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"; +}; +