Hi Robin, On Tue, Jun 25, 2019 at 05:43:18PM +0800, yibin.gong@xxxxxxx wrote: > From: Robin Gong <yibin.gong@xxxxxxx> > > 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(-) > I tested the patch-set on ColdFire mcf5441x (stmark2 board), all works fine. Tested-by: Angelo Dureghello <angelo@xxxxxxxx> Regards, Angelo > -- > 2.7.4 >
