From patchwork Sat Dec 4 03:44:05 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: manjugk manjugk X-Patchwork-Id: 380111 X-Patchwork-Delegate: tony@atomide.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id oB43i0fu025142 for ; Sat, 4 Dec 2010 03:44:25 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754508Ab0LDDoQ (ORCPT ); Fri, 3 Dec 2010 22:44:16 -0500 Received: from devils.ext.ti.com ([198.47.26.153]:33121 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754475Ab0LDDoP (ORCPT ); Fri, 3 Dec 2010 22:44:15 -0500 Received: from dlep34.itg.ti.com ([157.170.170.115]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id oB43iDdi004118 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 3 Dec 2010 21:44:13 -0600 Received: from legion.dal.design.ti.com (localhost [127.0.0.1]) by dlep34.itg.ti.com (8.13.7/8.13.7) with ESMTP id oB43iBZl004221; Fri, 3 Dec 2010 21:44:12 -0600 (CST) Received: from localhost (glpp-machine.apr.dhcp.ti.com [172.24.137.105]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id oB43i9f24455; Fri, 3 Dec 2010 21:44:09 -0600 (CST) From: "G, Manjunath Kondaiah" To: linux-omap@vger.kernel.org, tony@atomide.com Cc: linux-arm-kernel@lists.infradead.org, "G, Manjunath Kondaiah" , Benoit Cousson , Kevin Hilman , Santosh Shilimkar Subject: [PATCH v1 8/9] OMAP2+: DMA: hwmod: Device registration Date: Sat, 4 Dec 2010 09:14:05 +0530 Message-Id: <1291434246-30716-9-git-send-email-manjugk@ti.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1291434246-30716-1-git-send-email-manjugk@ti.com> References: <1291434246-30716-1-git-send-email-manjugk@ti.com> Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter1.kernel.org [140.211.167.41]); Sat, 04 Dec 2010 03:44:25 +0000 (UTC) diff --git a/arch/arm/mach-omap2/dma.c b/arch/arm/mach-omap2/dma.c new file mode 100644 index 0000000..e2c897a --- /dev/null +++ b/arch/arm/mach-omap2/dma.c @@ -0,0 +1,74 @@ +/* + * OMAP2+ DMA driver + * + * Copyright (C) 2003 - 2008 Nokia Corporation + * Author: Juha Yrjölä + * DMA channel linking for 1610 by Samuel Ortiz + * Graphics DMA and LCD DMA graphics tranformations + * by Imre Deak + * OMAP2/3 support Copyright (C) 2004-2007 Texas Instruments, Inc. + * Some functions based on earlier dma-omap.c Copyright (C) 2001 RidgeRun, Inc. + * + * Copyright (C) 2009 Texas Instruments + * Added OMAP4 support - Santosh Shilimkar + * + * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/ + * Converted DMA library into platform driver + * - G, Manjunath Kondaiah + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +static struct omap_device_pm_latency omap2_dma_latency[] = { + { + .deactivate_func = omap_device_idle_hwmods, + .activate_func = omap_device_enable_hwmods, + .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST, + }, +}; + +/* One time initializations */ +static int __init omap2_system_dma_init_dev(struct omap_hwmod *oh, void *unused) +{ + struct omap_device *od; + struct omap_system_dma_plat_info *p; + char *name = "omap_dma_system"; + + p = kzalloc(sizeof(struct omap_system_dma_plat_info), GFP_KERNEL); + if (!p) { + pr_err("%s: Unable to allocate pdata for %s:%s\n", + __func__, name, oh->name); + return -ENOMEM; + } + + od = omap_device_build(name, 0, oh, p, sizeof(*p), + omap2_dma_latency, ARRAY_SIZE(omap2_dma_latency), 0); + kfree(p); + if (IS_ERR(od)) { + pr_err("%s: Cant build omap_device for %s:%s.\n", + __func__, name, oh->name); + return IS_ERR(od); + } + + return 0; +} + +static int __init omap2_system_dma_init(void) +{ + return (omap_hwmod_for_each_by_class("dma", + omap2_system_dma_init_dev, NULL)); +} +arch_initcall(omap2_system_dma_init);