linux-kernel - [PATCH v2 0/3] add memcpy support for sdma

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Date:   Fri, 13 Jul 2018 21:08:44 +0800
From:   Robin Gong <yibin.gong@....com>
To:     vkoul@...nel.org, dan.j.williams@...el.com, shawnguo@...nel.org,
        s.hauer@...gutronix.de, fabio.estevam@....com,
        linux@...linux.org.uk
Cc:     linux-arm-kernel@...ts.infradead.org, kernel@...gutronix.de,
        dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-imx@....com
Subject: [PATCH v2 0/3] add memcpy support for sdma

This patchset is to add memcpy interface for imx-sdma, besides,to
support dmatest and enable config by default, so that could test dma
easily without any other device support such as uart/audio/spi...

Change from v1:
  1. remove bus_width check for memcpy since only max bus width needed for
     memcpy case to speedup copy.
  2. remove DMATEST support patch, since DMATEST is a common memcpy case.
  3. split to single patch for SDMA_BD_MAX_CNT instead of '0xffff'
  4. move sdma_config_ownership() from alloc_chan into sdma_prep_memcpy.
  5. address some minor review comments.

Robin Gong (3):
  dmaengine: imx-sdma: add SDMA_BD_MAX_CNT to replace '0xffff'
  dmaengine: imx-sdma: add memcpy interface
  ARM: configs: imx_v6_v7_defconfig: add DMATEST support

 arch/arm/configs/imx_v6_v7_defconfig |   3 +-
 drivers/dma/imx-sdma.c               | 106 ++++++++++++++++++++++++++++++++---
 2 files changed, 99 insertions(+), 10 deletions(-)

-- 
2.7.4