From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752133Ab2KPN7k (ORCPT ); Fri, 16 Nov 2012 08:59:40 -0500 Received: from mga03.intel.com ([143.182.124.21]:20674 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751995Ab2KPN7d (ORCPT ); Fri, 16 Nov 2012 08:59:33 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.83,264,1352102400"; d="scan'208";a="169191719" From: Andy Shevchenko To: Vinod Koul , spear-devel , linux-kernel@vger.kernel.org, Viresh Kumar Cc: Andy Shevchenko , Nicolas Ferre , Mika Westerberg , Guennadi Liakhovetski , Linus Walleij Subject: [PATCH 1/6] dmaengine: introduce is_slave_xfer function Date: Fri, 16 Nov 2012 15:59:14 +0200 Message-Id: <1353074360-1903-2-git-send-email-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1353074360-1903-1-git-send-email-andriy.shevchenko@linux.intel.com> References: <1353074360-1903-1-git-send-email-andriy.shevchenko@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This function helps to distinguish the slave type of transfer by checking the direction parameter. Signed-off-by: Andy Shevchenko Cc: Nicolas Ferre Cc: Mika Westerberg Cc: Guennadi Liakhovetski Cc: Linus Walleij --- include/linux/dmaengine.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 6402b18..3e1a9026 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -618,6 +618,11 @@ static inline int dmaengine_slave_config(struct dma_chan *chan, (unsigned long)config); } +static inline bool is_slave_xfer(enum dma_transfer_direction direction) +{ + return (direction == DMA_MEM_TO_DEV) || (direction == DMA_DEV_TO_MEM); +} + static inline struct dma_async_tx_descriptor *dmaengine_prep_slave_single( struct dma_chan *chan, dma_addr_t buf, size_t len, enum dma_transfer_direction dir, unsigned long flags) -- 1.7.10.4