From mboxrd@z Thu Jan 1 00:00:00 1970 From: kumarrav@codeaurora.org (Ravi Kumar V) Date: Thu, 22 Mar 2012 16:21:36 +0530 Subject: [PATCH v4 0/2] Add Qualcomm MSM ADM DMAEngine driver Message-ID: <1332413496-8246-1-git-send-email-kumarrav@codeaurora.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Following are the changes we have done from the previous v1 posted here: https://lkml.org/lkml/2011/12/22/148 As our ADM Scatter-gather hardware needs -32-bit command configuration parameter apart from -32-bit source address -32-bit destination address -16-bit length So,we have added new parameter in struct scatterlist to support xfer descriptor specific private data, and for supporting ADM Box mode DMA we added new API and data structure. Changes done from v2: As per our previous discussion you had suggested us to follow the below patch https://lkml.org/lkml/2012/1/26/405 Please check the below link of our discussion https://lkml.org/lkml/2012/1/30/48 So we have added the new context parameter in device_prep_dma_sg and device_prep_interleave_dma API's to support for passing client channel specific private data associated with every transfer descriptor. We are using Interleaved API for BOX type transfer. SG API for SG type transfer. Changes done from v3: Implemented the wrappers as suggested by Russell King in following patch https://lkml.org/lkml/2012/2/3/269 Fixed the dmaengine & client drivers to follow above changes Ravi Kumar V (2): dmaengine: Add context parameter to prep_dma_sg and prep_interleaved_dma DMAEngine: Add DMAEngine driver based on old MSM ADM DMA APIs arch/arm/mach-msm/include/mach/dma.h | 35 ++ drivers/dma/Kconfig | 12 + drivers/dma/Makefile | 1 + drivers/dma/fsldma.c | 2 +- drivers/dma/msm_adm_dma.c | 728 +++++++++++++++++++++++++++++++ drivers/dma/sirf-dma.c | 2 +- drivers/dma/ste_dma40.c | 2 +- drivers/misc/carma/carma-fpga-program.c | 2 +- drivers/misc/carma/carma-fpga.c | 7 +- include/linux/dmaengine.h | 22 +- 10 files changed, 803 insertions(+), 10 deletions(-) create mode 100644 drivers/dma/msm_adm_dma.c -- Sent by a consultant of the Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.