Re: [PATCH v8 1/3] dmaengine: fsl-edma: extract common fsl-edma code (no changes in behavior intended)

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Hi Krzysztof,

On Mon, Aug 06, 2018 at 09:43:42AM +0200, Krzysztof Kozlowski wrote:
> On 3 August 2018 at 21:32, Angelo Dureghello <angelo@xxxxxxxx> wrote:
> > This patch adds a new fsl-edma-common module to allow new
> > mcf-edma module code to use most of the fsl-edma code.
> >
> > Signed-off-by: Angelo Dureghello <angelo@xxxxxxxx>
> > ---
> > Changes for v2:
> > - patch splitted into 4
> > - add mcf-edma as minimal different parts from fsl-edma
> >
> > Changes for v3:
> > none
> >
> > Changes for v4:
> > - patch simplified from 4/4 into 2/2
> > - collecting all the mcf-edma-related changes
> >
> > Changes for v5:
> > none
> >
> > Changes for v6:
> > - adjusted comment header
> > - fixed bit shift with BIT()
> > - we need to free the interrupts at remove(), so removed all devm_
> >   interrupt related calls
> >
> > Changes for v7:
> > none
> >
> > Changes for v8:
> > - patch rewritten from scratch, splitted into 3, common code isolated,
> >   minimal changes from the original Freescale code have been done.
> >   The patch has been tested with both Iris + Colibri Vybrid VF50 and
> >   stmark2/mcf54415 Coldfire boards.
> > ---
> >  drivers/dma/Makefile          |   2 +-
> >  drivers/dma/fsl-edma-common.c | 576 ++++++++++++++++++++++++++++
> >  drivers/dma/fsl-edma-common.h | 196 ++++++++++
> >  drivers/dma/fsl-edma.c        | 697 +---------------------------------
> >  4 files changed, 774 insertions(+), 697 deletions(-)
> >  create mode 100644 drivers/dma/fsl-edma-common.c
> >  create mode 100644 drivers/dma/fsl-edma-common.h
> >
> > diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile
> > index 203a99d68315..66022f59fca4 100644
> > --- a/drivers/dma/Makefile
> > +++ b/drivers/dma/Makefile
> > @@ -31,7 +31,7 @@ obj-$(CONFIG_DW_AXI_DMAC) += dw-axi-dmac/
> >  obj-$(CONFIG_DW_DMAC_CORE) += dw/
> >  obj-$(CONFIG_EP93XX_DMA) += ep93xx_dma.o
> >  obj-$(CONFIG_FSL_DMA) += fsldma.o
> > -obj-$(CONFIG_FSL_EDMA) += fsl-edma.o
> > +obj-$(CONFIG_FSL_EDMA) += fsl-edma.o fsl-edma-common.o
> >  obj-$(CONFIG_FSL_RAID) += fsl_raid.o
> >  obj-$(CONFIG_HSU_DMA) += hsu/
> >  obj-$(CONFIG_IMG_MDC_DMA) += img-mdc-dma.o
> > diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c
> > new file mode 100644
> > index 000000000000..0ae7094f477a
> > --- /dev/null
> > +++ b/drivers/dma/fsl-edma-common.c
> > @@ -0,0 +1,576 @@
> > +// SPDX-License-Identifier: GPL-2.0
> 
> You moved code from fsl-edma.c which is licensed on GPL-2.0+. I think
> that's not allowed as you effectively relicense the work on new
> license.
> 
Ok, so if i undestrand, i should change that comment to
// SPDX-License-Identifier: GPL-2.0+
Right ?

> Tested-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
> 
> Best regards,
> Krzysztof
>

Best regards,
Angelo
 
> > +//
> > +// Copyright (c) 2013-2014 Freescale Semiconductor, Inc
> > +// Copyright (c) 2017 Sysam, Angelo Dureghello  <angelo@xxxxxxxx>
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