From patchwork Sat Jun 15 02:32:48 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Fernandes, Joel A" X-Patchwork-Id: 2726081 Return-Path: X-Original-To: patchwork-linux-mmc@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 7A3E9C0AB1 for ; Sat, 15 Jun 2013 02:35:54 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D9C0F201E8 for ; Sat, 15 Jun 2013 02:35:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EABB0201BF for ; Sat, 15 Jun 2013 02:35:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754285Ab3FOCfd (ORCPT ); Fri, 14 Jun 2013 22:35:33 -0400 Received: from arroyo.ext.ti.com ([192.94.94.40]:51652 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754145Ab3FOCdy (ORCPT ); Fri, 14 Jun 2013 22:33:54 -0400 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by arroyo.ext.ti.com (8.13.7/8.13.7) with ESMTP id r5F2X6d3005342; Fri, 14 Jun 2013 21:33:06 -0500 Received: from DFLE72.ent.ti.com (dfle72.ent.ti.com [128.247.5.109]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id r5F2X61p023437; Fri, 14 Jun 2013 21:33:06 -0500 Received: from dlelxv22.itg.ti.com (172.17.1.197) by DFLE72.ent.ti.com (128.247.5.109) with Microsoft SMTP Server id 14.2.342.3; Fri, 14 Jun 2013 21:33:05 -0500 Received: from localhost.localdomain (h1-16.vpn.ti.com [172.24.1.16]) by dlelxv22.itg.ti.com (8.13.8/8.13.8) with ESMTP id r5F2WoPw023492; Fri, 14 Jun 2013 21:33:05 -0500 From: Joel A Fernandes To: Tony Lindgren , Sekhar Nori , Matt Porter , Grant Likely , Rob Herring , Vinod Koul , Mark Brown , Benoit Cousson , Russell King , Rob Landley , Andrew Morton , Jason Kridner , Koen Kooi 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 , Joel A Fernandes Subject: [PATCH v10 6/8] spi: omap2-mcspi: add generic DMA request support to the DT binding Date: Fri, 14 Jun 2013 21:32:48 -0500 Message-ID: <1371263570-9323-6-git-send-email-joelagnel@ti.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1371263570-9323-1-git-send-email-joelagnel@ti.com> References: <1371263570-9323-1-git-send-email-joelagnel@ti.com> MIME-Version: 1.0 Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org X-Spam-Status: No, score=-7.2 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 --- Documentation/devicetree/bindings/spi/omap-spi.txt | 27 +++++++++++++++++++- 1 file changed, 26 insertions(+), 1 deletion(-) 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"; +};