From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shawn Guo To: Vinod Koul , Chris Ball , Artem Bityutskiy Subject: [PATCH 1/4] dmaengine: add DMA_TRANS_NONE to dma_transfer_direction Date: Tue, 13 Dec 2011 23:48:03 +0800 Message-Id: <1323791286-29574-2-git-send-email-shawn.guo@linaro.org> In-Reply-To: <1323791286-29574-1-git-send-email-shawn.guo@linaro.org> References: <1323791286-29574-1-git-send-email-shawn.guo@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, Huang Shijie , linux-mtd@lists.infradead.org, Shawn Guo , linux-arm-kernel@lists.infradead.org List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Before dma_transfer_direction was introduced to replace dma_data_direction, some dmaengine device uses DMA_NONE of dma_data_direction for some talk with its client drivers. The mxs-dma and its clients mxs-mmc and gpmi-nand are such case. This patch adds DMA_TRANS_NONE to dma_transfer_direction and migrate the DMA_NONE use in mxs-dma to it. It also fixes the compile warning below. CC drivers/dma/mxs-dma.o drivers/dma/mxs-dma.c: In function ‘mxs_dma_prep_slave_sg’: drivers/dma/mxs-dma.c:420:16: warning: comparison between ‘enum dma_transfer_direction’ and ‘enum dma_data_direction’ Signed-off-by: Shawn Guo --- drivers/dma/mxs-dma.c | 2 +- include/linux/dmaengine.h | 1 + 2 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c index bdf4672..ff89211 100644 --- a/drivers/dma/mxs-dma.c +++ b/drivers/dma/mxs-dma.c @@ -417,7 +417,7 @@ static struct dma_async_tx_descriptor *mxs_dma_prep_slave_sg( idx = 0; } - if (direction == DMA_NONE) { + if (direction == DMA_TRANS_NONE) { ccw = &mxs_chan->ccw[idx++]; pio = (u32 *) sgl; diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 5532bb8..679b349 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -88,6 +88,7 @@ enum dma_transfer_direction { DMA_MEM_TO_DEV, DMA_DEV_TO_MEM, DMA_DEV_TO_DEV, + DMA_TRANS_NONE, }; /** -- 1.7.4.1