dmaengine Archive on lore.kernel.org
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* [PATCH v5 0/6] add edma2 for i.mx7ulp
@ 2019-06-25  9:43 yibin.gong
  2019-06-25  9:43 ` [PATCH v5 1/6] dmaengine: fsl-edma: add drvdata for fsl-edma yibin.gong
                   ` (7 more replies)
  0 siblings, 8 replies; 10+ messages in thread
From: yibin.gong @ 2019-06-25  9:43 UTC (permalink / raw)
  To: robh, shawnguo, s.hauer, festevam, mark.rutland, vkoul,
	dan.j.williams, angelo
  Cc: linux-imx, linux-arm-kernel, linux-kernel, dmaengine, devicetree, kernel

From: Robin Gong <yibin.gong@nxp.com>

This patch set add new version of edma for i.mx7ulp, the main changes
are as belows:
 1. only one dmamux.
 2. another clock dma_clk except dmamux clk.
 3. 16 independent interrupts instead of only one interrupt for
    all channels
For the first change, need modify fsl-edma-common.c and mcf-edma,
so create the first two patches to prepare without any function impact.

For the third change, need request single irq for every channel with
the legacy handler. But actually 2 dma channels share one interrupt(16
channel interrupts, but 32 channels.),ch0/ch16,ch1/ch17... For now, just
simply request irq without IRQF_SHARED flag, since 16 channels are enough
on i.mx7ulp whose M4 domain own some peripherals.

change from v1:
  1. check .data of 'of_device_id' in probe instead of compatible name.

change from v2:
  1. move the difference between edma and edma2 into driver data so that
     no need version checking in fsl-edma.c.

change from v3:
  1. remove duplicated 'version' and 'dmamux_nr' in 'struct fsl_edma_engine'
     since they are included in drvdata already.
  2. downgrade print log level.
  3. address some minor indent issues raised by Vinod.

change from v4:
  1. correct typo.

Robin Gong (6):
  dmaengine: fsl-edma: add drvdata for fsl-edma
  dmaengine: fsl-edma-common: move dmamux register to another single
    function
  dmaengine: fsl-edma-common: version check for v2 instead
  dt-bindings: dma: fsl-edma: add new i.mx7ulp-edma
  dmaengine: fsl-edma: add i.mx7ulp edma2 version support
  ARM: dts: imx7ulp: add edma device node

 Documentation/devicetree/bindings/dma/fsl-edma.txt |  44 ++++++++-
 arch/arm/boot/dts/imx7ulp.dtsi                     |  28 ++++++
 drivers/dma/fsl-edma-common.c                      |  83 ++++++++++------
 drivers/dma/fsl-edma-common.h                      |  14 ++-
 drivers/dma/fsl-edma.c                             | 109 ++++++++++++++++++---
 drivers/dma/mcf-edma.c                             |  11 ++-
 6 files changed, 239 insertions(+), 50 deletions(-)

-- 
2.7.4


^ permalink raw reply	[flat|nested] 10+ messages in thread

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Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-06-25  9:43 [PATCH v5 0/6] add edma2 for i.mx7ulp yibin.gong
2019-06-25  9:43 ` [PATCH v5 1/6] dmaengine: fsl-edma: add drvdata for fsl-edma yibin.gong
2019-06-25  9:43 ` [PATCH v5 2/6] dmaengine: fsl-edma-common: move dmamux register to another single function yibin.gong
2019-06-25  9:43 ` [PATCH v5 3/6] dmaengine: fsl-edma-common: version check for v2 instead yibin.gong
2019-06-25  9:43 ` [PATCH v5 4/6] dt-bindings: dma: fsl-edma: add new i.mx7ulp-edma yibin.gong
2019-06-25  9:43 ` [PATCH v5 5/6] dmaengine: fsl-edma: add i.mx7ulp edma2 version support yibin.gong
2019-06-25  9:43 ` [PATCH v5 6/6] ARM: dts: imx7ulp: add edma device node yibin.gong
2019-07-18  2:49   ` Shawn Guo
2019-06-25 20:56 ` [PATCH v5 0/6] add edma2 for i.mx7ulp Angelo Dureghello
2019-07-03  7:58 ` Vinod Koul

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