From patchwork Mon Dec 8 06:28:03 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vinod Koul X-Patchwork-Id: 5454051 Return-Path: X-Original-To: patchwork-dmaengine@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 13CF39F30B for ; Mon, 8 Dec 2014 06:27:48 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 469D220142 for ; Mon, 8 Dec 2014 06:27:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6BD782012E for ; Mon, 8 Dec 2014 06:27:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752578AbaLHG1q (ORCPT ); Mon, 8 Dec 2014 01:27:46 -0500 Received: from mga01.intel.com ([192.55.52.88]:59172 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751914AbaLHG1p (ORCPT ); Mon, 8 Dec 2014 01:27:45 -0500 Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga101.fm.intel.com with ESMTP; 07 Dec 2014 22:27:45 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,862,1389772800"; d="scan'208";a="426356517" Received: from vkoul-udesk3.iind.intel.com ([10.223.84.65]) by FMSMGA003.fm.intel.com with ESMTP; 07 Dec 2014 22:17:10 -0800 From: Vinod Koul To: dmaengine@vger.kernel.org Cc: Maxime Ripard , Laurent Pinchart , Vinod Koul Subject: [PATCH 3/7] Documentation: dmaengine: clarify dma_slave_config expectations Date: Mon, 8 Dec 2014 11:58:03 +0530 Message-Id: <1418020087-22470-3-git-send-email-vinod.koul@intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1418020087-22470-1-git-send-email-vinod.koul@intel.com> References: <1416231775-31252-1-git-send-email-maxime.ripard@free-electrons.com> <1418020087-22470-1-git-send-email-vinod.koul@intel.com> Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_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 dma_slave_config is expected to be set for slave operations Only, not for memcpy ones Signed-off-by: Vinod Koul --- Documentation/dmaengine/provider.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/dmaengine/provider.txt b/Documentation/dmaengine/provider.txt index 2c391cfe37eb..e7ea9f87f499 100644 --- a/Documentation/dmaengine/provider.txt +++ b/Documentation/dmaengine/provider.txt @@ -310,6 +310,8 @@ supported. - Even though that structure contains a direction field, this field is deprecated in favor of the direction argument given to the prep_* functions + - This call is required for only slave operations only. + This should NOT be set or expected to be set for memcpy operations * device_pause - Pauses a transfer on the channel