From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Brezillon Subject: [PATCH 2/5] dmaengine: Provide a wrapper for memcpy operations Date: Fri, 27 Jan 2017 17:34:03 +0100 Message-ID: <1485534846-28111-3-git-send-email-boris.brezillon@free-electrons.com> References: <1485534846-28111-1-git-send-email-boris.brezillon@free-electrons.com> Return-path: In-Reply-To: <1485534846-28111-1-git-send-email-boris.brezillon@free-electrons.com> Sender: linux-kernel-owner@vger.kernel.org To: Boris Brezillon , Richard Weinberger , linux-mtd@lists.infradead.org, Linus Walleij , Alexandre Courbot , linux-gpio@vger.kernel.org, Vinod Koul , Dan Williams , dmaengine@vger.kernel.org, Nicolas Ferre , Alexandre Belloni , Wenyou Yang , Josh Wu , Haavard Skinnemoen , Hans-Christian Egtvedt , linux-kernel@vger.kernel.org Cc: David Woodhouse , Brian Norris , Marek Vasut , Cyrille Pitchen , linux-arm-kernel@lists.infradead.org List-Id: linux-gpio@vger.kernel.org Almost all ->device_prep_dma_xx() methods have a wrapper defined in dmaengine.h. Add one for ->device_prep_dma_memcpy(). Signed-off-by: Boris Brezillon --- include/linux/dmaengine.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index feee6ec6a13b..533680860865 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -894,6 +894,17 @@ static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_memset( len, flags); } +static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_memcpy( + struct dma_chan *chan, dma_addr_t dest, dma_addr_t src, + size_t len, unsigned long flags) +{ + if (!chan || !chan->device || !chan->device->device_prep_dma_memcpy) + return NULL; + + return chan->device->device_prep_dma_memcpy(chan, dest, src, + len, flags); +} + static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_sg( struct dma_chan *chan, struct scatterlist *dst_sg, unsigned int dst_nents, -- 2.7.4 From mboxrd@z Thu Jan 1 00:00:00 1970 From: boris.brezillon@free-electrons.com (Boris Brezillon) Date: Fri, 27 Jan 2017 17:34:03 +0100 Subject: [PATCH 2/5] dmaengine: Provide a wrapper for memcpy operations In-Reply-To: <1485534846-28111-1-git-send-email-boris.brezillon@free-electrons.com> References: <1485534846-28111-1-git-send-email-boris.brezillon@free-electrons.com> Message-ID: <1485534846-28111-3-git-send-email-boris.brezillon@free-electrons.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Almost all ->device_prep_dma_xx() methods have a wrapper defined in dmaengine.h. Add one for ->device_prep_dma_memcpy(). Signed-off-by: Boris Brezillon --- include/linux/dmaengine.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index feee6ec6a13b..533680860865 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -894,6 +894,17 @@ static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_memset( len, flags); } +static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_memcpy( + struct dma_chan *chan, dma_addr_t dest, dma_addr_t src, + size_t len, unsigned long flags) +{ + if (!chan || !chan->device || !chan->device->device_prep_dma_memcpy) + return NULL; + + return chan->device->device_prep_dma_memcpy(chan, dest, src, + len, flags); +} + static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_sg( struct dma_chan *chan, struct scatterlist *dst_sg, unsigned int dst_nents, -- 2.7.4