Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751988AbZGWRNe (ORCPT ); Thu, 23 Jul 2009 13:13:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751601AbZGWRNe (ORCPT ); Thu, 23 Jul 2009 13:13:34 -0400 Received: from mail-pz0-f192.google.com ([209.85.222.192]:62350 "EHLO mail-pz0-f192.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750985AbZGWRNd (ORCPT ); Thu, 23 Jul 2009 13:13:33 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; b=PA1nZGRqTb6wi9JENfx8AZS0lX5ZImge0XZ8MyWEHD1loOppIrWX7ObDLN6y4mc/Hr MCrTGsCkKr4MsAmCehvHHXd7JVYIkcqGs85Qn3739AV2QWyCpP9Ye53iVDM14MzzZ5Fm v37CUOO3EIuFZuYH6B85sWkNPQN8ZPH9z3zv8= MIME-Version: 1.0 In-Reply-To: <1248285885-1189-1-git-send-email-nicolas.ferre@atmel.com> References: <1246641873-21686-1-git-send-email-nicolas.ferre@atmel.com> <1248285885-1189-1-git-send-email-nicolas.ferre@atmel.com> Date: Thu, 23 Jul 2009 10:13:31 -0700 X-Google-Sender-Auth: bfe65d842fdaef5f Message-ID: Subject: Re: [PATCH] dmaengine: at_hdmac: add DMA slave transfers From: Dan Williams To: Nicolas Ferre Cc: maciej.sosnowski@intel.com, linux-arm-kernel@lists.arm.linux.org.uk, patrice.vilchez@atmel.com, linux-kernel@vger.kernel.org, haavard.skinnemoen@atmel.com Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1222 Lines: 26 On Wed, Jul 22, 2009 at 11:04 AM, Nicolas Ferre wrote: > This patch for at_hdmac adds the slave transfers capability to the Atmel DMA > controller available on some AT91 SOCs. This allow peripheral to memory and > memory to peripheral transfers with hardware handshaking. > > Slave structure for controller specific information is passed through channel > private data. This at_dma_slave structure is defined in at_hdmac.h header file > and relative hardware definition are moved to this file from at_hdmac_regs.h. > Doing this we allow the channel configuration from platform definition code. > > This work is intensively based on dw_dmac and several slave implementations. > > Signed-off-by: Nicolas Ferre > --- Seems straightforward and self contained, applied. Just curious which drivers will take advantage of this slave capability? As it stands I do not see any in-tree users of at_hdmac beyond dmatest? Thanks, Dan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/